When does F5FltSrv use port 8090?

[nictas]

I'm developing an application that runs on port 8090, but today it failed to start because the port was already in use by another process. I tried to find out what that process was and I got the following result (the command was executed in Windows PowerShell):

C:\Users\Alexander> Get-Process -Id (Get-NetTCPConnection -LocalPort 8090).OwningProcess

Handles  NPM(K)    PM(K)      WS(K)     CPU(s)     Id  SI ProcessName
-------  ------    -----      -----     ------     --  -- -----------
    138     162     3404       6204              6108   0 F5FltSrv

I read the Overview of ports used by the BIG-IP Edge Client for Windows article, but 8090 wasn't listed there. I then restarted my computer and suddenly the port was no longer in use and I could start my application without any problems. My question is: Is there some random port allocation going on? When does the F5FltSrv process use the 8090 port?

[nictas]

I forgot to mention the build and API versions of my BIG-IP Edge client. Both are 7210,2020,827,422.