Join / Log in Explore BA Products
You might want to check out this link: https://www.ibm.com/support/knowledgecenter/en/SSD29G_2.0.0/com.ibm.swg.ba.cognos.tm1_inst.2.0.0.doc/t_tm1web_pmpsvc_config.html
In the latest releases of Planning Analytics, TM1Web has been separated from the "IBM Cognos Tm1" Web Tier Windows service into a new Windows service called "IBM Planning Analytics Spreadsheet Services", PASS, and there could be a port issue. The new service is just TM1Web and the old service retains all the rest of the "other" old Web Tier stuff. Both services want to use port 9510, but if "IBM Cognos TM1" is running, it usually prevents "IBM Planning Analytics Spreadsheet Services" from getting the port. When the latest TM1Web is installed, it actually sets the "IBM Cognos TM1" web service to start-up type "manual", but I don't think it stops it unless you manually stop it or reboot. The new TM1 Web just installs next to it.
The link above suggests setting TM1Web to 9511 if you still need "IBM Cognos TM1", but for most people I think it means to make sure the "IBM Cognos TM1" service is off if you will be using regular TM1Web(PASS).