Last month I started bringing my laptop to work with me, I also have wireless at home. Now every few days it decides it will show I am connected to my network but I can not connect to the internet. When I try to repair it says Arp cache can not clear. I have cleared it in command prompt it will say ok and then let me run the repair connection seccessfully but still won't let me connect.
I can temporarily get around this by system restoring to the previous day but of course that doesn't really solve my problem and after 3 or 4 days of going between wireless networks I end up with the same problem.
I have ran a network diagnostics it came back failed DNServerSearchOrder.
What else can I try doing?