Upgraded from vSphere plugin 2.16 > 2.17 and we can no longer connect to vSphere.  Among other things, certificate errors and illegal characters warnings.  We have several systems worldwide that have been running for a very many years, and this could end up being problematic.

I suspect it has to do with our naming of jenkins_us1 (the underscore) but that is not clear.  To change the name of all of our jenkins, vSphere,and VM instances starts a domino effect that will not be pretty.