I have recently setup a Netscreen SSG5 firewall/Router on my network and have configured static routes to an MPLS router for traffic destined to a remote site. When I try and connect to any server using RDP via the MPLS route the RDP sessions continually drop out every 20 seconds or so. Though I can maintain a constant ping to the server Im trying to connect to with no dropouts.
I can set the default gateway on a test PC direct to the MPLS bypassing the SSG5 and the RDP works fine. I also have an older netscreen NS5Xt device with the same routes in place and no RDP issues
Is there anything I can check on the SSG5 Router which may be causing the RDP dropouts?