I appreciate that I'm late to this discussion, but I have solved similar problems with other Bloomberg client software by manually killing bbcomm.exe with the Task Manager.

They came back with the suggestion to change the timeout from 5000 to 10000 on the session manager. I tried it but could not even save the longer timeout...so back to square one with time critical apps not being able to run. Now the sole tech support person is out for the rest of the week!

Does your bloomberg terminal work okay? Does it exhibit any of the intermittent issues you mention? If so, then I would contact Bloomberg. That's not likely the issue though.

Otherwise, I would contact Wolfram Technical Support about this. You may have been given a particular number to contact them that is specific to the Finance Platform. Otherwise please see:

https://www.wolfram.com/support/contact/