Hello, first of all thanks to anyone who can reply with some help .
My crunching machine, a headless Ubuntu 16.04 server with BOINC version 7.6.31 will not connect to BAM!, the error message is as follows

"No signing key from account manager"

this thread recommends detaching and reattaching which has not worked.
Another thread points out that contacting the BAM! administrator is the only way.

Looking forward to figuring this out!