This is a discussion on Use VPN connection within the same country? within the online poker forums, in the Poker Rooms section; Recently, my ISP is having problem when connecting to a poker site (it's unstable). Would it be legal to use a VPN and connect it
Depends which site you play I think. I know I play at a couple, and one in particular where I ALWAYS make sure my VPN is OFF because they take it very seriously and block you so that you can't access it if it is detected.
Most don't seem to mind, but I definitely don't use it at GGPoker.