[Can't open yahoo.com & messenger when on my wireless network]

Hello ,

I have problem with my network with both laptop/computer.
I can not load or open yahoo.com page and also messenger. If I disconnect from my wireless and connect to other network, lets say my neighbor is working. I disconnect and connect again to my network is working for a while then the problem is back. I did not experience this problem with other web pages.
I run an antivirus and an antispam and I didn't detect anything wrong.
So I just figured out this has to do with my network.
Can someone give me a hint with what I should do?

Thank you!

 

It is most likely to be a problem with your anti-virus, firewall, or anti-spam. Network problem tend to cause all or nothing behaviours. The exception being DNS. There's an outside chance your DNS service is playing up. Try this at a command prompt:

nslookup yahoo.com

What do you get?