Please advice, DNS problem!

[longshanks]

Mate has AOL, Netgear wireless ADSL router (Not sure which model but it cost £99), 4 laptops (Kids ones!). they were all working fine with the internet until a couple of days ago. Now, when they try to get onto the net they get a message saying something like 'No DNS Server'.

He has phoned AOL but after 2 hours on the phone he is still unable to connect.

Any ideas please? What can he do to rectify the problem. Thanks.

 

[longshanks]

Anymore advice guys?

 

[longshanks]

Thanks guys