I have an interesting problem.
I am running a win server 2003 and win xp sp3 network. Until recently we have been able to access all network resources and the internet without any problems.
Now however, we can still access the network resources, (printers/ server files etc), the exchange email system and blackberry servers can send and receive messages, the antivirus solution is able to update trhoughout the network. The only trouble we have now is that we get intermittant web surfing, i.e. sometimes when we open IE8 and type in a page it will connect and allow us to browse that site (if somewhat slower than usual), others we get the can not connect .... even after refreshing the page.
I have checked the router and switches trafic using Wireshark and all appears to be fine.
Does anyone have any suggestions on how to proceed?