You didn't tell if you asked the hotspot owner about changes to their system.
I have a Gateway ML6732 laptop which is about 1.5 yrs old and I run Vista HP (or it runs me !) I mostly depend on "hot spots" for internet use , primarily RoadRunner with whom (?) I have an account . One spot I use alot has a very strong signal which is always present , but lately, I cant hookup to RR or any other sig , even when I can see the sigs are present and strong . I try all of the diagnostics and repairs , reseting network adaptor , etc. and get a notice "this computer has limited or no connectivity ".This occurs off and on , one day it works , the next day it wont .Could my net adaptor be outdated or ? Any ideas ? Thanks in advance for any HELP !!!