My attempt at upgrading failed as well, However now I can't communicate to any of the devices. The system was working fine with 2.8.8. I have tried upgrading several more time to get connectivity back but its not working.It appears the PLM has failed but what would cause this from just doing an upgrade?
I have followed all of the reccomendatin on clearing cache, certs, etc. I am running windows vista 64-bit.