Thanks Parnassus, however....
New certs installed as per instructions DO NOT WORK with imc.
I tested on a spare controller and would not connect. to IMC (unfortunately deleted the certs as per instructions - DOH! - you can leave them installed until everything looks good. Also a password protected configuration backup will inlcude the certs so you can recover)
I tested again on primary controller (w/o deleting) and switching between certs old vs new has same result. for new
New certs - stuck connecting - see below
Old Certs - connect right away on port 7668
New cert in MSM - stuck like this?

View In IMC