9.1 SP3 "Login Failed: SystemServerConnectionInvalid"

[MSidat]

Hi All.

Working on a 9.1 SP3 Installation (Yes I know ancient installation, but no business appetite for upgrade anytime soon) on a Windows 2003 X64 server and getting the above message when trying to login to a brand new TM1 Model.

We already have a prod service running with integratedsecuritymode = 2. This is behaving fine on the same box. I have taken a copy of the tm1sd.exe file, renamed it and started the service against an empty TM1 Data Folder (Running against the Local Account). The service starts fine creates the necessary files/folders in the data directory and the service appears in my Perspective session.

However each time i try to login with the Admin account and blank password it thinks about it for an age and comes up with the above error. I have followed some IBM technote suggesting changing the port number and clientmessageport configs and also added in the IPAddress=T config setting which somepeople have had success with on the forum. However nothing seems to work and I am completely stumped.

Any Ideas what could be causing this?

Thanks in advance.