I have a DSL connection.
The other day the desktop (Windows 7, wired connection to router) started acting funny. My internet stopped working and I called the phone company. THey told me to see if the AUTOMATICALLY DETECT SETTINGS button was selected under internet options. It was, I unchecked and all was okay again.

THe next day, I was having trouble getting ports open. At canyouseeme.org, I was getting hit and miss. I have a Netgear router, static IP address, and certain ports forwarded. While trying to get those ports working consistently, I started having problems with the actual internet connection.
Later in the evening, the PC started acting strange, and then for several hours, I couldn't even get it restarted.
Finally, something gave and I got it restarted.

Now the internet is reading connected and online, but I am not connected.
The laptop is working fine via the wireless router. Sometimes, the internet icon has the yellow exclamation point (no access), and sometimes it doesn't (internet access).

I tried three of my network adapters and even bought a new one and new cable today. No difference.

Ideas?

Thanks .