Every time I initiate a support session with a remote user, our IP seems to be blocked for around five minutes after I close the support session. I can still use LogMeIn to control them, but during this time and around 5 minutes after closing, the user network cannot ping our IP address (timed out message) nor can they connect to our RDP via the same IP address. It happens to every computer at the remote office as well, and not just the one computer I supported.
It has only started a couple weeks ago; I have been using LogMeInRescue since 2009. Nothing has been changed on our network. Our firewall settings are all the same. The remote clients often don't have a firewall and if they do, it hasn't been touched either.
Any ideas? Our users depend on connecting to us via RDP and I feel like I can't even use LogMeIn anymore or our users will be locked out at every office I connect to.