Today I received the service reply by phone (at 6:00AM not less!). Due to having a single license on a single computer, the tech opted to replace the FlexWeb(?) with an older license server. I let him drive my machine and the process involved removing the LM and installing older version. It also required some monkeying with my registry file under NT\network adapter IIRC. ...and you know I was sitting on pins and needles watching all this go on as he drove my precious Dell. Sure enough, something happened with my VPN after I regained control. I think it is back up to snuff now, but that really wasn't a comfortable session.
I did ask if there was a manual license release, and the tech "promised me" that I wouldn't ever need it after this "upgrade". So far, so good.
If you have a similar situation, put in the service request. You can reference this case:
Case #10842537: "Lincese not being released after shutdown of Creo Parametric”
3 days from filing to resolution. Not to bad.