Authentication after sleep

Hello there.

I have problem with lync.

We deploy Lync intergrate with Exchange servers.

that all IM  goes to Outlook profiles and the OAB download from EWS.

normally the clients good, people use it and all goes smooth,
mapi connect,EWS connect

But when Restore from Sleep, Windows authentication Promt to users and ask to authentication again.

even after authenticate, it often ask again and again and again, untill you close the outlook + lync and open it again.

even if only lync connect goes to sleep and restore from sleep, it promt again and again, until close and reopen

for outlook i did script that close all connection and reconnect after login but with lync i didnt find how i do that?

someone can help me with this case?