thanks SqlBill, "it hangs" means EM is not responding anymore told by Task manager.

Jack

Hi, Steve,

Thanks for your help.

the issue happened 80% of time when i performe this operation, is uninstall/install client require a reboot? if so, i can't do that, since this is...

yeah, pretty standard, the agent is client software, it gether info and send to application server.

for now, i don't see issues, since i'm asked to provide daily support to the...