Backstory:

I connected a small HDD via USB and set it up for network storage, to test, which was successful.  I ended up purchased a larger HDD to work as network storage and connected it.  The system indicated the Network/Media Server Name was already in use (from the test HDD). The test HDD was disconnected from the Deco at that time.  I had to reconnect the test HDD and change the name to a different bogus one to free up the name I wanted to use.  The newer HDD is all setup and ready, no issue there. 

The system seems to store the credentials of past connected devices, so to my question, is there any way to completely remove or delete past connected USB devices?  I'm never going to reconnect the test HDD.  But if I ever need to replace the new HDD,  I'll have to rename that one to a bogus name as well.

Also are the credentials stored on the mobile Deco app via your account or locally (on the Decos themselves?)

Any guidance is greatly appreciated.