Can't access WatchESPN at Friend's House

[BearMormont]

Hi,

I am house sitting for a friend and can't seem to login to WatchESPN on my laptop.  I think the issue is we have both have Verizon Fios but he doesn't subscribe to sports channels.  When I go to login to WatchESPN I select "Verizon FiOS" as my provider, but instead of giving me a login prompt it seems to automatically log into his FiOS account; I'm guessing it detects his FiOS wifi or something.

How do I disable this auto login and manually enter my credentials?

Thanks,

Bear