User has different privledges on different computers

[dismas]

My forums run 3.6.x. I have a special members usergroup who can access more forums than a regular user.

One of my users says that his access varies depending on which computer he is on. On his computer at home, he has access to the regular members areas plus the club member areas that are off limits to the public. But on his wife's computer (same house) and his work computer (not at home) he only has access to the regular user areas.

Any ideas on why this is or how to fix it? This is a recent development without any changes to the board in a while.