Hi to all,
My company have Lync 2010 Standar Edition server.
We have change our MS Office 2010 Pro to MS Office 2013 ProPlus.
When the users try to log in to Lync 2013 client it coming the below error.
On the Lync 2010 client there was only one authentication: Sign-In Address: username@domain.com / Password: <domain password>.
There was any issue and we successful log in from the 1st time.
On the Lync 2013 client there is two authentication: Sign-In Address / Username / Password .
Sometimes after several unsuccessful login's I'm log in to Lync 2013 client by using: Sign-In Address: username@domain.com / Username: username@domain.com / Password: <domain password>.
Could you please advise why this happen? Need I change - add anything on the Lync 2010 server?
Maybe because is a conflict with our Sign-In Address: username@domain.com and our domain username where is domain.local\username - username@domain.local ? If yes why on Lync 2010 Client we do not experience such issue?
I look forward to hearing.
Thanks.
Dimitris