We have recently extended the Lync 2010 Enterprise pool with 2 Front end servers. Now we have totally 6 Front end servers.
After this change some users are unable to login. Error message: "Cannot loggin as server is temporarily unavailable"
Captured, client logs and received the following:
ms-diagnostics: 4004;reason="Credentials provided are not authorized to act as specified from URI";
We have the following security settings on the newly added front end servers:
Network security: Minimumsecurity for NTLM SSP Based clients - set to - Require 128-bit encryption
In other existing front end servers, it has been set to - No minimum.
Questions:
1. Is that the issue for signin failure?
2. Do we need to change this option to - No minimum in new servers and reboot it?
Please advise. MUCH THANKS.
- Edited by SBHV Thursday, December 19, 2013 3:06 PM