No Servers displaying in TM1Web in TM1 10.2 FP1

If you are applying 10.2 FP1 then make sure you read the following article:

http://www-01.ibm.com/support/docview.wss?uid=swg24036618

Especially these bits:

a. Delete the config.ini file which can be found <TM1 install>\tomcat\work\Catalina\localhost\pmhub\eclipse\configuration.
This is required when using TM1 Operations Console, Cognos Analysis for Microsoft Excel® or Cognos TM1 Mobile Contributor.
b. Open Cognos Configuration.
c. When you first open Cognos Configuration after applying FP1 a message displays that the configuration files have been upgraded. Click OK to continue.

Otherwise you will end up with tm1web displaying no servers