I am having problems with the internet LAN connection with my desktop PC since changing my ISP from AOL to Post Office a month ago. They supply a Zyxel_5664 wireless router.
The problem is the internet connection keeps dropping on the LAN connection. Wi-fi works fine. If I ping during these breaks in connection - I get no response (0/4) from a website but full response ie 4/4 if I ping the router.
I have tried using my netbook to connect to the internet via LAN (and wireless switched off) and it works fine - so it must be a problem with my desktop PC.
When I changed to Post Office I installed Kaspersky and Netintelligence - but I had so many problems with NI blocking stuff so uninstalled it. I think it might be something to do with that. However I did the same thing with the netbook and it works fine. I am currently running Microsoft Security Essentials and Windows Firewall.