cheval_dabri wrote:With regard to the points raised by Alton Towers and Monkey D. Ruffy, my ISP does use dynamic addresses, so I had hoped that turning the computer off or restarting would resolve the issue. Not sure if these steps would be the same as turning the modem off for 10 secs, but the problem persisted.
Not normally, particularly if you are broadband or cable - which I assume you are. Check the modem for the orange "LINK" light - this means you are logged in. Green means connection ok, flashing anything means "hang on a bit, I'm working". If you turn the PC off, it doesn't reset the modem connection to the ISP.
Glad you fixed the problem!