Comments for I can't access some websites ... why?

Comment from Susan on 2009-11-04

2009-11-04T21:26:42Z

I ran the program to change my adapter and MTU. The adapter was wrong and MTU was blank. I selected the correct adapter and typed 1500 in MTU and pressed saved. I rebooted and problem still exists. When I re-opened your program, it went back to the old adapter and MTU was blank? Can you help?

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Comment from Karen on 2009-10-17

2009-10-17T16:56:28Z

I can go on a multitude of websites however the website I can't get on is my husband's reunion website - I went into options and exceptions and added that website to be allowed - I have been on it once by some MIRACLE and haven't been able to get on it since. Any ideas?

Karen

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Comment from selva on 2009-09-14

2009-09-14T07:17:37Z

Thanks! you saved me from formatting my hd! It works for me!

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Comment from Samantha on 2009-08-22

2009-08-23T00:23:41Z

I have the same problem, with a twist.

My own website that I am just starting to build was easily accessible for three days. Now I cannot get to it from my computer at home but I can get it from another friend's house and from the library. The server the site is on has no problems since the site is accessible from other computers.

I work with an Imac. I called Time Warner, my IP and that was two days ago. They told me a technician would call me within 24 hours but have not heard from the person.

Can someone please help me. I already did the basics, clean cookies, reset Safari, tried Firefox, same thing happened.

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Comment from Mike on 2009-08-19

2009-08-19T15:09:43Z

i cannot access one particular website anymore....rapidshare.com
i have a Rapidshare premium account.
Since yesterday, anytime i try to download anything through Rapidshare, the following message eventually appears....

:irc-2.test.com 451 GET :You have not registered :irc-2.test.com 451 Accept: :You have not registered :irc-2.test.com 451 Accept-Language: :You have not registered :irc-2.test.com 451 UA-CPU: :You have not registered :irc-2.test.com 451 Accept-Encoding: :You have not registered :irc-2.test.com 451 User-Agent: :You have not registered :irc-2.test.com 451 Host: :You have not registered :irc-2.test.com 451 Connection: :You have not registered ERROR :Closing Link: [118.33.225.52] (Ping timeout)

Also, when i try to access Rapidshare.com i get the same message.

Can you please help me with this problem?
Thank you

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Comment from Rafael on 2009-08-08

2009-08-08T18:01:18Z

I used an Internet Accelerator, a software that "optimizes" my network connection values, and all was ok but i couldn't access webpages (important ones by the way, like hotmail). I used the value of 1492 in both of my ethernet cards using the software here suggested (original values were 1500) and rebooted. Now all pages work!!! and messenger is also on track. I don't know if this was the root solution, but after i did this, everything worked immediatly. Thanks!

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Comment from Carolyn on 2009-08-08

2009-08-08T11:50:09Z

Mid-morning yesterday I started being unable to access the Livejournal site. Error mess. indicates the server is disconnecting from me. MTU would not seem to be the problem, as that didn't change yesterday. Any idea what's gone wrong?

On top of everything else, pay attention to the news too. LiveJournal may have been affected by a denial-of-service attack that affected other sites. Try again tomorrow.

08-Aug-2009

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Comment from Joanne on 2009-08-04

2009-08-04T15:33:00Z

Someone suggested on this site suggest I reset my modem...and it did the trick! Thanks!

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Comment from Hector on 2009-08-01

2009-08-02T01:26:14Z

This was the only solution that solved my problem. What I was wondering is why, after reformatting, the problem still occured...

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Comment from anna on 2009-08-01

2009-08-01T22:03:34Z

Unfortunately, i cant access any of the pages that provide that program. Is there any way to do the tweaking without downloading it?

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Comment from Spritz on 2009-07-02

2009-07-02T16:56:47Z

I ran this program and my MTU value was blank. Entered a value of 1500 and saved it. The sites that I was having trouble viewing worked perfectly. Thanks.

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Comment from Malcolm on 2009-06-22

2009-06-22T11:54:33Z

My MTU was blank; I tried an MTU factor of 1492 and then 1500. On both occasions when I brought up DrTCP the values had returned to blank. Still can't get Rapidshare and Amazon.com

Malcolm

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Comment from Hi on 2009-06-18

2009-06-19T03:35:30Z

does this method affects internet speed??

Not typically in any way that you'd notice.

- Leo
19-Jun-2009

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Comment from J on 2009-03-18

2009-03-19T00:14:20Z

I read both articles and was wary of using the above suggestion. I would use it but, I just wanted to throw out what worked for me. I was having difficulty accessing a site that I'd used several times. It occurred to me to try resetting my modem. This did the trick. Simple fix!

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Comment from Mr. Smith on 2009-03-17

2009-03-17T22:06:05Z

I have a simular problem. I have a webpage that refuses to load. Ive checked everything, twice. Do different things from other sites but no luck. Page simple turns and states done on bottom left. No text no pictures. Running xp and Kaspersky.

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Comment from Jade Anderson on 2009-02-25

2009-02-26T00:16:11Z

Hi there im currently running on windows vista i am having trouble going on to websites ive been on before (days ago) i can log onto them from another website so i know there is no problem at there end and ive downloaded the drtcp but it comes up blank and too be honest not really sure what im doing :{. Does anyone know what this could be? thanks

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Comment from Neakhiz on 2009-02-01

2009-02-01T21:49:42Z

I'm experiencing a problem accessing ANTIVIRUS websites, I,ve visited a lot of forums for a possible solution, I tried to scan my computer with antimalware, antispyware and antivirus on safe mode, deleted all files on "Temp" folder, but still I cant access antivirus sites, i dont know if theres still a virus/malware lurking in my CPU or its just a setting that was changed by that virus, funny thing is only antivirus sites is one I cant access, (AVG, Avast, Symantec, kaspersky, Avira, PAnda, nod32, bitdefender,Norman.....etc)I'm actually using AVG 8, now my AVG's virus database is outdated since I cant update it, I used Avira, SuperAntispyware and Malwarebytes to scan in SafeMode, things are going fine, scanned some malware, cookies and virus, not I think its already clean and Zero Virus, but when I tried to access those said sites.... theres no luck, still I cant access Antivirus Sites, Pls help! thanks in advance!

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Comment from Randy Christianson on 2009-01-22

2009-01-22T18:40:56Z

Super advice!!! Thank you so much. After tearing my LAN apart, disconnecting routers, switching out modems and spending two hours on the phone with my ISP tech support I was awaiting a site techs arrival. I found your site by accident, checked on a whim and discovered all MTU's were set to 0.
I reset them to 1500 and the results were amazing
I can now access sites I have been unable to get onto for months.

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Comment from Stanley on 2009-01-14

2009-01-15T07:55:25Z

I've tried what it suggest by altering the MTU, but still doesn't solve my problem from login into a forum and game website which i been login in for 2 years. the websites are as follows : engforum.lastchaos.com.my & www.lastchaos.com.my . i've tried on other PC and it works fine. I've even tried ping both of the websites and it replies as normal. i just couldn't access it through my internet browser. whenever i typed it on the address bar, it just keep waiting for page to load and in turn fail to load. hope there is someone who could help.

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Comment from shaun on 2009-01-13

2009-01-13T19:56:47Z

Many Thanks, I ended up just deleting the hosts file (after making a copy of it - just in case).
Then I could access all sites including Google.

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Comment from cameraz on 2009-01-03

2009-01-03T20:43:16Z

Thank you so much, Jaco!!!!!! I have been trying to solve this problem for years! In fact, today I called my antivirus program manufacturer and complained that its product was blocking me from seeing some Web sites. They had me disable my antivirus and I still couldn't access the sites!

After reading your response, I checked my Hosts file, and, lo and behold, there were hundreds of entries placed in there!!! The culprit? Spybot Search and Destroy!

I removed all the entries, saved my hosts file, and Viola! I can access all the web sites that I couldn't before.

Again, many thanks!!!!

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Comment from CPUGURU on 2008-11-22

2008-11-22T19:57:28Z

It is not your MTU, it is your HOST script in Windows..To fix this go to:
c:/Windows/System32/drivers/etc/Hosts
You might find someone has changed your settings causing a loopback... This is all you should see in your HOST script..

This is a sample HOSTS file used by Microsoft TCP/IP for Windows.
#
# This file contains the mappings of IP addresses to host names. Each
# entry should be kept on an individual line. The IP address should
# be placed in the first column followed by the corresponding host name.
# The IP address and the host name should be separated by at least one
# space.
#
# Additionally, comments (such as these) may be inserted on individual
# lines or following the machine name denoted by a '#' symbol.
#
# For example:
#
# 102.54.94.97 rhino.acme.com # source server
# 38.25.63.10 x.acme.com # x client host

127.0.0.1 localhost
::1 localhost

If for some reason there is anything else just delete it and save!! If you are using Vista you must access this file as an admin or change your privelages...Hope this helps some people!!!

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Comment from asivakumar on 2008-11-12

2008-11-13T06:39:40Z

when i open up Dr TCP in the MTU there is nothing in the box. I uninstalled msn messenger rebooted and everything works

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Comment from Ton on 2008-11-02

2008-11-02T10:10:15Z

Thanks Leo,
I ran into this problem when I rearranged my home network through my Linksys Wireless Router. I used to connect the ICS host (internet connection sharing) through the router via wireless connection but now plugged in an ethernet cable. And since then had problem om my wireless laptop. Other sites also suggested this was a Linksys problem and might have to replace it. But you solved it. Many thanks!

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Comment from J on 2008-10-27

2008-10-27T19:13:56Z

I have this same issue. I can access a site and then 20 minutes later its not found. I know there is nothing wrong with my machine or the site. Because i can still visit other sites. I can use another computer to visit the site or use anonymizer sites to visit the site...so what is the actual issue here?

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Comment from Gbrode on 2008-10-25

2008-10-25T10:23:18Z

I am unable to access sites through search engines, Yahoo, Google, etc. but can access any sites I have bookmarked including any any links from them. I can also sometimes access them if I type the address in the URL. I did a system restore and all was ok for a few days, but the problem returned and doesn`t always correct itself after a restore. I tried swapping the computer over and found the same problem. I would be grateful for any halp.

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Comment from Bob on 2008-10-24

2008-10-25T04:05:14Z

I tried to download DRTCP, however, I just got message "THE WEBSITE DECLINED TO SHOW THIS WEBPAGE" HTTP 403. Obvious there is something that I should be doing and as I am not quite illiterate with PC's, there is still alot to learn. Any suggestions to rectify the situation.

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Comment from Amanda on 2008-10-12

2008-10-12T20:01:30Z

I bought a new Belkin Router this morning. It has taken 4 hours to set it up. I have been phoning Belkin and my broadband provider. I managed to get onto the internet in the end. But no Hotmail or Yahoo. Just want to say thank you for the advise on this page because it worked for me.

The Belkin MTU was set at 1439. I changed it to 1492 and it now works. Thanks

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Comment from Cheri on 2008-09-16

2008-09-17T02:09:49Z

I have AT&T Wireless broadband on my laptop and I can't bring up the www.hotmail.com sign in page all of a sudden today; yet, I can on my iPhone. Is this a provider issue, hotmail issue, hurricane issue (I'm in south Texas) or something else? I can get on every other site out there.

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Comment from Josh C on 2008-09-04

2008-09-05T03:20:26Z

Yes! This worked perfectly. For some reason, all of the domains I own (which are all hosted from the same IP) went dark for me. I couldn't see a single one, but everyone else in the world can. So, I did the instructions above, however, my MTU had nothing in the box, so I entered 1500 and presto! I could see all of my sites again.

Thanks!

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Comment from Alex on 2008-06-29

2008-06-30T04:28:38Z

Hey Guys,
Just Wanna let you know I was able to Resolve the problem.

I tried Turning Off the Hosts File via CMD and the site worked, so I went ahead and opened the Hosts file with notepad and search for the the website I was trying to access.

For some Weird Reason, it was added to the block list with an loop Ip to resolve on.

Cheers.
Alex

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Comment from Jamure on 2008-06-26

2008-06-26T22:12:24Z

Additinal Info:

I started my computer in SafeMode -- ie SafeMode+Networking mode -- and the websites that did not work before seem to work now -- so whatever the problem is getting kicked in only when we start the windows in full mode.

For people who don't know how to start SafeMode -- start hitting F8 key while your system is booting up like crazy -- it will take you to a screen where you can use up and down arrow keys to select SafeMode with Networking. If you start just SafeMode (without the Networking loaded) then you cannot access anything outside your own computer - no internet, no other computers.

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Comment from Jamure on 2008-06-24

2008-06-24T19:57:55Z

I had to use another computer to down load DrTCP and transfer it to my computer with this same problem ... it did NOT fix the problem.

SOmething else is wrong. Whatever it is - it is pretty smart ... I cannot download windows updates, virus scan software ... those websites do NOT work or gets stuck after a while ...

I tried web based scanners (from the websites that I can access) - nothing comes up after several hours of scanning.

this computer with problem has

Windows XP Professional SP2
Websites like Yahoo, Google do NOT work few others (www.msn.com) work fine
I have been trying to fix this problem for the last 7 days about 40-50 hours spent so far.
I am not totally computer illiterate ...

Other machines (laptops) work fine through the same ISP and router!

Couple of experts I spoke with in my town said they had similar problems and ended up reinstalling Windows and starting all over again with their machines that are taken over by this demon, whatever it is.

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Comment from James on 2008-06-02

2008-06-03T05:30:30Z

I tried the MTU settings and like another fellow I have no numbers as well using XP Home Edition on your basic cable hook up. No router. The only site I can not get on is the most recognizable site out there...google! Anything to do with google and I won't be able to get on. I've changed my search engine to Alltheweb.com for this reason and just lead my life without google. Any help would be appreciated. Thanks

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Comment from Lori Martinez on 2008-02-19

2008-02-19T23:40:09Z

If I could plant a big 'ole sloppy kiss on ya Leo, I would! Thanks so much for this ingenious information. I'm so glad I Googled my problem and found this site. You're awesome!

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Comment from kobi on 2007-10-24

2007-10-24T18:09:36Z

hi leo
i cant see any where to start a new question on this site so ill post this here and hopefully youl be able to help , i had a power cut and put this XP PC in the fixit shop to get past the "blue screen" since ive had it back the "desktop backgrounds" have been dissabled in display options , theyre still there but non selectable and unable to scrole them up or down , the colour options are active and thats about it - when i go to a picture and right click and choose set as background the image doest apear , allthough when i boot this PC up it shows the background ive selected and then it dissapears when my desktop loads and all i can see is one of the color options and sometimes when i have a glitch on the desktop display i can see the image showing through the glitch, ive google this extensivly and found many other people having the same problem but with no answeres, i did find something on the windows help page about background wallpaper probs , they say to go into the (MMC) microsoft management console) and open --

Local Computer Policy
User Configuration
Administrative Templates
Control Panel
Display

but when i go into the MMC theres nothing there to open "im abit unsure to say the least" ????
link..http://support.microsoft.com/kb/280687

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Comment from John Stuart on 2007-09-14

2007-09-14T13:53:22Z

I am now going to call you Dr Leo!!! Even Saint Leo! I have been battling all week with problems on my small business network - client computers just started having problems connecting to websites without any explanation. I don't know why this happened but I have tried everything to fix it. Tried your DrTCP device and even though I didn't have any MTU value, setting it to 1492 has cured all problems. Thank you!!

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Comment from Dean Allen on 2007-09-09

2007-09-09T21:52:01Z

Hello, firstly my windows xp professional is in spanish, i don´t know if this effects the Dr TCP when I downloaded the program it detected my connection
Broadcom 440x 10/100 integrated controller but the MTU box was empty where it should have said a figure. Anyway we just had our router replaced by the ISP and with the new router we started having this exact problem accessing hotmail with outlook through messenger, and manually. I rang the ISP and gave them an earful and told me that i was nothing to do with them. The connection works with other routers in my computers reach. Its really FRUSTRATING!! any ideas what could be the problem? If you could help i´d really appreciate it.
Kiwi in Spain

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Comment from Leo A. Notenboom on 2007-08-27

2007-08-27T20:51:40Z

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

No way to know without knowing how everything's connected and configured.

Sorry.

Leo

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iD8DBQFG0zlMCMEe9B/8oqERAhhiAKCFRBIJx2Cyuu2rLS4tf04/BogzJACcDrFf
qnjZswTTkPwICH1jNeB/fIs=
=53vf
-----END PGP SIGNATURE-----

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Comment from Amrisha on 2007-08-27

2007-08-27T20:22:50Z

Hi Leo,

Nice site! :)

I do have a wireless connection problem, hope you can help to resolve the issue. See, the problem is we do have an internet connection (1 laptop is fully connected and can browse all sites) and the other can only access certain sites. I have tried most things but seem to fail.

Can you kindly respond in this situation...

Many Thanks,
Amrisha

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Comment from peter ray on 2007-07-16

2007-07-16T12:27:31Z

My Belkin ADSL2+ Modem with Wireless G Plus MIMO Router have a defaulted MTU = 1432. I change to 1492 as suggested by Leo and now i can access to microsft & msn. I wonder if Belkin have some bad blood with microsoft or sometihng2.. anyways,. Cheers to Leo...

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Comment from Stuart Woodard on 2007-07-10

2007-07-11T06:34:59Z

Some folks are having trouble using DrTCP on Windows Vista. I must admit it has worked fine for me, but you can make the registry change yourself.

The Vista registry key is:
HKLM\System\CurrentControlSet\Services\Tcpip\Parameters\Interfaces

Under this key are a number of others, including one for each of your installed network cards/devices. You can find an MTU subkey under each device and change the (DWORD) value to whatever you like. I chose 0x00000578 (1400).

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Comment from Jubilee on 2007-07-08

2007-07-08T18:30:16Z

I tried the MTU settings, but when I did it everything was blank or set to default. I still tried the two different settings and it's not working. I can't access myspace from home on either of my computers but I can at work using my laptop, so I believe it's something to do with my internet. I tried rebooting the box and the router but it didn't work. Please help. I have family all over the world and this is the only easy way we have to keep in touch.

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Comment from Denis Mahoney on 2007-03-22

2007-03-22T22:03:20Z

Leo-you're the man!
Your suggestions led me to do the following which fixed my Belkin Wireless not connecting to Hotmail.
I installed the Microsoft TCP v6 (comes with XP) which included Turedo Tunelling so this handled the NATing side.
I adjusted the MTU on my wireless card (previously had just been changing it on the Belkin router).
Both of these changes-inspired by you-fixed my long standing problem-many thanks!

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Comment from Jay on 2007-03-14

2007-03-14T14:16:21Z

Quoting Terri, "Every time I try to log on myspace.com I will get a message saying internet explorer cannot display the webpage. I have tried everything I tried what you mention above and still cannot access myspace, this problem just occured a couple of days ago, please help."

Same Problem here, any suggestions? Not only Myspace either, there are a few others which I cannot access, including my work email!!
It was fine 2 days ago, but yesterday and today....... NIGHTMARE!!
Many thanks for any suggestions!

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A comment on: I can't access some websites ... why?

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Comment from Kevin R. on 2007-03-10

2007-03-10T12:08:21Z

Thank you very much! I would have never thought that the MTU was causing the issues I had on my home network.

I didn't use Dr. TCP. I went into the setup page of my Linksys router via my web browser (192.168.1.1) and found that I had the MTU setting disabled. Once I enabled it and set it to 1500 it fixed the problems I had with not being able to access certain websites. Thanks.

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A comment on: I can't access some websites ... why?

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Comment from Michael Workman on 2007-02-13

2007-02-13T21:59:25Z

I read this thread...with so many solutions. I tried each one...but the answer for me was the one where they suggested that you change the dns setting in TCP from dynamic to a specific address of my router. That worked! I had fought this for HOURS... Thanks to all the contributors on this thread, i am now growing my hair back in.

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A comment on: I can't access some websites ... why?

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Comment from terri on 2007-02-04

2007-02-05T00:13:15Z

Every time I try to log on myspace.com I will get a message saying internet explorer cannot display the webpage. I have tried everything I tried what you mention above and still cannot access myspace, this problem just occured a couple of days ago, please help.

Thanks much,
Terri

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A comment on: I can't access some websites ... why?

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Comment from Adrienne on 2007-01-31

2007-01-31T22:03:58Z

Hello, I recently installed a router to connect an additional computer at home for a total of to internet accessable computers, the first computer works as it normally did the second however will not access email, java downloads, and many others, all I can get is the page cannot be displayed page directing me to internet options, my isp assistant me in making sure the internet options were proper as did the router sales rep but nothing has worked to remedy the problem, please help
Adrienne

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A comment on: I can't access some websites ... why?

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Comment from james on 2006-09-10

2006-09-11T03:46:00Z

ok I have what I consider a different scenario from the ones above. I cannot get to this website but I can ping it. I attempted it from my mother's pc which is a different setup browser etc and it had the same no response. But I could ping the website from my moms computer also. We are on DSL with a wireless network for my pc. so I decided to by pass the router and plug my moms computer directly into the DSL modem. Did that and still could not access the website. So it's not my router. SO i tried tweaking with the modem different things. I reset it completely. Disabled all firewalls. Still I can't get to this page in IE or Mozilla. BUT we have AOL for broadband that connects over our DSL connection. The bizarre thing is I can connect to the website through the AOL portal. Just not directly through Mozilla or IE. There is something that is simple that I am missing. Someone please point it out.

I would like this resolved so that I can get to it through my preferred browsers. I don't really use aol for broadband much and we are fixing to delete the account.

I appreciate any help you might could give.

I am kind of in the thinking that some how maybe my dsl carrier could be blocking the site but I have no idea how that would work or why.

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A comment on: I can't access some websites ... why?

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Comment from Matt on 2006-09-04

2006-09-04T07:58:55Z

hey!! wow i love you man lol i cant belive it you fixed it!! ok well make sure you put down MTU numbers that he tells you to and not the ones that he has on his because i didnt listen lol and first i put 1500 and it didnt do anything but then i tried the 1492 and it worked .. oh and if you have windows xp you dont have to reboot you can just go into controll panell and then go to network connections, right click on ur connection and then click disable then enable it again by right clicking on ur connection and clicking enable

this made me able to get onto windows live messenger again and log onto myspace and onto hotmail so if you have those problems i strongly recommend this

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A comment on: I can't access some websites ... why?

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Comment from Rick on 2006-06-07

2006-06-07T11:29:52Z

I wasn't able to get to some sites. I'm on XP home and have DSL. I have an dhcp assigned ip, but was using my dsl providers DNS entries for my network card. I got rid of the dns entries and the sites I couldn't get to showed up immediately. I'm guessing it was a temporary dns issue on their end. I thought adding a dns entry would speed things up. It worked since I setup my system three weeks ago, and all of a sudden just stopped. Go figure.

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A comment on: I can't access some websites ... why?

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Comment from Bruce on 2006-04-24

2006-04-24T10:31:49Z

Two reasons I have had for not reaching some websites are:
1. The host file, when the link uses an intermediary advertising link like fastclick, which is in my hosts file. I remove the intermediary link from the address bar and go to the desired destination.
2. The javascript used is not completely proper and the browser I use does not handle it, but IE does handle it.

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A comment on: I can't access some websites ... why?

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Comment from Leo on 2006-04-22

2006-04-22T17:14:18Z

Possibly.

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A comment on: I can't access some websites ... why?

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Comment from Walt on 2006-04-22

2006-04-22T17:08:02Z

My wife can access all web pages from a wired connection, but when she goes wireless on the same computer, only some of those same pages can be accessed. For example, she can connect to the main page and some sub pages of U-Haul's web site but not to other pages (specifically http://store.uhaul.com/hitches.aspx). Would changing the MTU setting help with this situation? Thanks.

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A comment on: I can't access some websites ... why?

Tech Questions? Get Answers! - Ask Leo! ... by Leo Notenboom
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