What's a firewall, and how do I set one up?

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my msn cant connect as i get the massage that the firewall has blocked possibly but i dont think that it is the case can u help me please

I have a wireless windows xp computer and just recently my computer will not hook up with the interent. I have tried everything. Could the firewall be preventing it from accessing it?

hi leo,i have a problem with my windows live messenger.when i try to sign in windows live messenger box came out and say that "windows live messenger has made several failed attempts to sign you in.your firewall may be blocking windows live messenger from connecting to the service.please review your firewall settings.see the retailer's instructions for more information".can u help me to solve my problem??thank you

Leo,

Hi, I am looking to set up a firewall in my home that will allow me to set up a seperate profile for each person in the household. I have five children ranging from 18 to 4 and would like to set up distinct whitelists for each person. I have been able to find a firewall that supports setting up a profile by category to block but have been unable to find one that gives me the flexability to block by category for some uses and by whitelist for others. Please keep in mind that multiple people use the same computer.

Thanks for your help

my msn cant connect as i get the massage that the firewall has blocked possibly but i dont think that it is the case can u help me please

Hi Leo I just have a question...when I try to go to the Internet...it takes a lot of time to open just yahoo,per say, when I try to diagnose the problem it says that my firewall is blocking the Internet...but I don't know how to change it...I have reseted the modem, but is useless...When turn my computer I can go the Internet and go to wherever I want,but after a couple of minutes it blocks again...and it takes a lot of time to open a page...Any suggestions of how can I can fix this problem...

if i tries to sign in to my Windows Live Messenger, it displays : Several Attempts to sign in, you firewall may be blocking you to connect to the service.
Leo Please help me.
Thank you

My computer wont let me download anything.Is my firewall doing this?If not what can I do so I can download things again?

i'm having the same problem like others. pop out showing "windows live messenger has made several failed attempts to sign you in.your firewall may be blocking windows live messenger from connecting to the service.please review your firewall settings.see the retailer's instructions for more information" when signing in. pls help..

Windows Live Messenger Has made several attempts to sign you in. Your firewall may be blocking Messenger from connecting it to it's service. See the retailers instructions for more info"

I get this error while signing to WLM... please help me....

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