I'm having a problem connecting to Terminal Servers or Remote Desktop computers from behind a PIX501.
If you look at the config of the PIX501, we have incoming RDP and LPD printing which works fine. And outgoing (from LAN2, behind PIX) POP3, SMTP and DNS all work fine, but outgoing RDP does not.
Please take a look at the attached JPG of the network layout.
I can access "3rd Party TS servers" consistantly from :
1) various (5+) XP or 2003 machines on various networks / ISPs
2) machines on LAN1
but not from machines on LAN2.
Occasionally it works, but more often that not I can't connect and recieve the standard "This computer can't connect to the remote computer. Please try again".
All the machines in LAN2 have RDP client v6.0. I have tried reseting the PIX to factory default also.
So my question is, Why am I unable to reliably connect to Terminal Servers from machines in LAN2 via the PIX501?