I had been having problems with windows 7 as it was taking so much time to connect to the network(upto 15 mins…way more than what it used to be). So I finally made up my lazy mind to see whats wrong. I ran the troubleshoot test on the network connections but it didn’t solve the problem. I noticed the following
Diagnostics policy service is not running. After some googling I found out that system restore could solve the issue..nope that’s not possible any alternatives ????
Finally from a forum I found out that removing all the network adapters and then rebooting the system will solve the problem. If by mistake you remove the network drivers you will have to reinstall it.
Luckily the above method solved my problem. The network adapters got created again after I rebooted and things were happy and all good again. Hope it helps!!!!