Technical notes

ISSUE:   Lync 2010 client does not login in Lync 2013 server. CAUSE:   The cause may be following one from 3. i.   Client version filter in Lync SERVER ii.  Network Security: Minimum session security in Lync SERVER SOLUTION: i.   Client version filter in Lync SERVER :  Here ii.  Network Security: Minimum session security in Lync SERVER :  Here

ISSUE: How to set authentication support NTLM in lync 2010/2013 server as first choice ? SOLUTION: Step 1. Run secpol.msc on Lync Front End server Step 2. Select Local Policies  -> Security Options Step 3. Open Network Security: Minimum session security for NTLM SSP based (including secure RPC) Step 4. Tick on Require NTLMv2 session security (default Require 128-bit encryption) Step 5.  Open second Network Security: Minimum session security for NTLM SSP based (including secure RPC) Step 6. Tick on Require NTLMv2 session security (default Require 128-bit encryption) You are done!

To enable a lync user 3 certificates are necessary. These certificates are exported from lync server, edge server and directory control. Certificate for specific services: 0. Root CA 1. SIP services/Lync Front-end. 2. AV services/Edge . 1. SIP services. : STEP 1.   Goto run in windows button in lower left corner and type mmc . STEP 2.   In mmc window selecte File-->Add/Remove snap-in. STEP 3.   Select Certificates from Add/Remove snap-in.   STEP 4.   Select Computer Account from Certificate Snap-in. STEP 5.    Click Next and do all of the necessary stuff on the way. STEP 6.   Select Personal->certificates from  mmc console. STEP 7.   After that select the certificate you need to export and click right button of mouse and from All Tasks select export . STEP 8.   Just follow necessary stuff and get your certificate by instruction from next click. For Edge server certificate follow the...