[chaps]

GrubHub has this problem, kind of I think. If I'm on a VPN GrubHub will often deny access ("invalid password"...). Worse is, logging off of the VPN doesn't immediately help and neither does using another browser. Only thing I can do is wait until it decides to forget. Absolutely frustrating.

[ComputerGuru]

That’s almost certainly nothing related to location detection so much as it is the VPN block of IPs being marked as less trustworthy. Then there’s a cooldown on a flagged account that stops you even after disconnecting.