We did a restart of our production BW system. This was to change a value for abap/heap_memory_dia. After the restart we began receiving reports of BPC no longer working from the web launch link. When one clicks on the link the following message is displayed.
Nothing else about the system was changed. I have no experience with BPC. Unfortunately this part of the system is not managed by us but we have inherited support for it on this issue. All other systems are functioning fine.
One clue that is strange to us is that the server url used in the connection of the excel login changed from working on port number 8000 to 8001.
https://fqdn:8001/sap/bpc (New working link)
http://fqdn:8000/sap/bpc (Old broken link)