I have FIOS connection and it connects to Sonic wall NSA2400 firewall at my workplace. I am trying to connect my office private network (192.168.0.0) over VPN (Sonic wall Global Client). It does connect VPN normally. I can ping and browser my private network. I am having issue only to connect any PC in private network (192.168.0.0) using RDP. Whenever I try to connect, it times out and doesn't connect at all. Initially I thought may be there is some compatibility issue with RDP clients so I tried troubleshoot it. But not luck.
Later I figured out, it happens only when my outside network is Verizon FIOS and its trying to connect my workplace(192.168.0.0) over VPN, which i have FIOS connection too. I tried with Verizon 4G Wireless Cards and Time Warner Cable and it works fine. It does connect PC using RDP.
Any suggestions are welcome.