we run wc 10.1 M040 and are impacted by the bug that causes intermittent connectivity with the wc server.
the problem and solution is documented in CS133804
It appears you need to make a request to PTC for the patches and then apply them, but it states that you also need to update your creo view adapters and reconfigure your cad worker for creo view 3? If you do this, then do you have to also reconfigure so that your windchill server offers creo view 3 from the "software downloads" page? If you have to do this, and you run a cluster, it is correct that you need to decluster, run PSI to install creo view 3, and then recreate the cluster? But wait! There are some notes indicating that there are problems installing creo view 3 (see CS131110)
or should I just upgrade to 10.2 M20 (when released in May?)