A neighbor's laptop was having problems connecting to the internet so I'm trying to diagnose and fix the problem.
Her Windows 7 laptop is normally configured for DHCP for ip and dns.
She recently allowed her laptop to receive a bunch of Windows updates but she's not sure that the updates correlate with when the problem started.
I've got the laptop at my house and it will only connect to the internet when I change DHCP to my ISP's DNS. I can leave DHCP on for IP address but DNS must be static otherwise it connects to my network (wired or wireless) but never can get to any web pages or her outlook email doesn't work. Plug in a static DNS and viola, it works. We are both on the same ISP (TWC Roadrunner Austin).
I might also mention, when I'm go back to wireless on this laptop, it takes about 1 minute before the signal bars at the bottom clear (no spinning circle). It still doesn't connect, but it's odd that it takes so long to try to establish a connection and I thought that might be helpful info.
My DHCP works well for the 10 other devices in my home that regularly connect to my wireless network so I've kind of eliminated my WNDR3700v4 router as a possible problem. I haven't done a system restore (yet), because I wanted to try to figure out the problem first if possible.
Would appreciate some troubleshooting tips before doing a system restore attempt.