The issue likely isn't the network drive access. It's the local drive that the update is trying to install the reporting components on. Depending on where it's hanging, you could try installing the Crystal reporting engine manually using X:\Softrak\System\CR_InstallCommon\CRRuntime_32bit_13_0_25.msi. If that works, then re-run the workstation update. If it still doesn't finish, note where it's hanging and report back.