DNS unable to resolve ip address....

[opnight]

i cannot stay connected for long lenths of time, i test connection and it either days invalid ip address, or theres a problem with DNS on my xbox dashboard whilst my xbox goes offline my computer will not load even the home page, nor connect to msn, but my network places says im connected. ive looked at the connection guide and do not know why its D/C me... any help. i have not got no viruses, i recently scanned..?. i can connect and browse internet but suddenly it will cut me from XBL and not load IE pages so i have to either restart pc and xbox, or keep turning router off which im sure isnt good for the router.

My router is: Bt voyager 210 ASDL router (updated firmware and driver)
when i try and use internet and msn the troubleshooter for msn comes up and says this

Exact Problem: DNS unable to resolve ip address.

[jholland1964]

i recently scanned..?.

What is the significance of the ?

[Gizmokid2005]

I also wonder the significance of the ?.

This issues sounds too much like a router issue to me. It is not normal for all devices to become disconnected at the same time without there being an issue with the actual connection or the router.

[opnight]

i copied it from another forum that i requested help from and the person who replied asked if id recently scanned or something along those lines..
i sent an email to my ISP and they gave me some instructions such as check DNS setting, replace filters, power cycle my router but ive done all this a few time but my problem is still the same

[jholland1964]

I still don't understand your answer. HAVE you scanned and with WHAT?
Your answer tells us nothing. We don't even know anything about your computer, your operating system, nothing.
We really need FULL information here about the computer...Hard drive, operating system, what scans did you use and when? How much RAM is installed? How much hard drive space is left? What other programs are running along with everything else? How ARE you connected to the internet? We need to know everything before we continue to throw out guesses here.

[opnight]

umm ok, ill give it a go at telling you my pc specs etc.

Windows operating system (service pack 2) XP
Computer: AMD athlon processor, 799MHz, 640MB of RAM
Hard drive: file system NTFS, total size 18.6GB, space left 1.04GB
Scans used: nortan internet security package, spybot search and destory(dont remember actual date within the last 4 days tho)
i am connected to the internet via a wired router.
ISP: BT Broadband
other programs running: Msn messenger.

i think thats all u asked for, tell me if i missed anything.

[jholland1964]

You say SP 2...SP2 of what? XP?
Have you done any other scanning? Have you followed the steps in this link
Give that a try, there ARE viruses and hijackers out there that can cause this type of problems.
Can you bypass the router and connect direct?

[opnight]

yes sorry windows xp

[Gizmokid2005]

Which version of Windows XP? Home edition, Professional edition, or Media Center edition?

[opnight]

professional