Some older access points don't support the power saving protocol used by the N810. FON routers don't. Having a lower signal power and a busy access point seem to affect the ability to connect. I never have a problem with my home AP or those in Starbucks. For $7.95 a month I have a Boingo Wifi account for the N810 that includes roaming with AT&T. Also works at most hotels and airports in addition to McDonalds -- I don't do fast food but they're there is Starbucks isn't.