Installing PreAgentPkg_Agent.exe 10.3 from Network (Netware) Share takes a very long time.

Installing Agent 10.2 from network works.
Installing Agent 10.3 from local drive works.
Installing Agent 10.3 from network with Symantec Endpoint Proactive Threat Protection turned off works perfectely.

I suppose that an update from Novell or Symantec will prevent this curious behaviour but in the meantime we are looking for a quick solution.

A Symantec Endpoint exception would be a mostly appreciated workaround. We tried several exceptions without any luck.

Symantec Endpoint 11.0.5 and 11.0.4
Novell Zenworks Adaptive Agent
Novell client 4.91 SP5
All products have been installed in French.

This last information may not help the diagnosis but it surely gives clues about my poor command of English.

Thanks for your comprehension and help.