When user migrated to clustered environment he might notice slow downs of certain login transactions in ProjectWise that might take up to 500ms. It's especially noticeable when deleting a large amount of folders from a Project wise project.
Please try to use this command(telnet client needs to be enabled):
telnet mypwserver1.work.at 5800
To ping the server and you should notice that there will be a slight but felt delay between first ACK and NOSEC message, which will not be found when checking server logs but seen in client logs.
Described in detail here, a Dword needs to be created in all cluster server's registries.