What is DHCP?

I have two computers networked with a hub. For some reason, I can only have the internet on one computer or the other. I had them both working at the same time, but now for some reason it doesnt. I have checked connections and they are fine. To get the internet of whichever computer I am using, I click repair in the network connections. When trying to connected without doing that, it says something about TCP or whatever. any suggestions?

http://ask-leo.com/why_does_my_home_network_only_work_with_one_computer_at_a_time.html should help

ok so how do you fix this?

Fix what?

I've read some of your Network solution to some of the difficulty problems that everyone posted. And I think it's very very helpful and visually details.

Thank you for your information. Myself encountered problem with my network.

I'm using a Linksys switch with 4 ports. port#1 to my primary computer to access internet, port#2 go to my kids computer which occassionally permission to get on the internet, and the third connect to my X-box (game console). Recently I bought another Xbox which will provide connect to share the gaming experience by challenging each other on difference screen and differences xbox.

But the problem is only one Xbox can get on xbox-live at a time. Then I saw your article and thought of the similar problem that I encountered, your solution may aslo solve my Gaming connection problem.

Thank you in advance. (I will try to buy a router and install it to see if provide two IPs address for both Xbox to access on the net)

I have been satisfied with the explanations given on DHCP

Leo,

I'm at wits end.

When my wife plays Everquest, the computer freezes almost randomly. In the event viewer-system, various errors occur: DHCP IP address lease has been denied or cannot be renewed (or something similiar) event 1000,1001,1002, or 1003, cannot obtain DHCP address.

I've spent hours talking to the ISP only to have them say its the PC (the connection from the ISP to the cable modem). The LAN card shows as being connected and sending infromation to out, but not receiving any informaton. The computer only faulters running on-line video games.

I've also updated the drivers, reinstalled XP, replaced the video card, replaced the LAN and replaced the memory. I've even connected the computer directly to the cable modem without any network.

I've also ran spyware, and antivirus programs.

Can you point me in the right direction?

Here are the PC particulars:
P4 1.8A
MS9118E Motherboard
2GB PC3200/replacing 1GB PC2100
ATI 9550 replacing ATI7500
Linksys 10/100 LAN card replacing on-board
XP Prof SP2
Linksys B/G wireless router/switch
ISP Timewarner/RoadRunner

BTW: Matsonic responded saying its the OS
Linksys responded saying its the ISP
ISP says take PC to the repair shop
ATI says its not their problem

Thanks for having a great site!
Tom

A1 site to learn networking and its basics.

Based on what I've just read about this DHCP thing....and, even this 75 yr old unreconstructed "bookie" i.e. non- techie could understand it, I believe now that dial-up access may have its advantages in anonymity..am I correct? Could you perhaps make it the subject of another column?
Best,
Charlie G.

I have a 2 MBps broadband connection which uses a dialer to connect to the internet. Now, when I check whether or not DHCP is enabled through ipconfig, it shows "no" sometimes and "yes" sometimes. What could be a possible reason?

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