I have been having similar issues. Frequent server disconnects, usually a 9006 error. This has been happening a few times/day for about 5 days. Today, it's awful: Though I'v ehad periods of an hour or more that were fine, they're followed by periods of disconnecting every few minutes. Previously, it was rock solid.

When it occurs, my internet appears to be working fine in other respects. That is, I can reach other sites. I have tried rebooting my router.

I am located in Arizona. My ISP is Sparklight.