I released a small free troubleshooting tool back in October 2008 to help diagnose Communicator automatic sign-in issues. It queries all the possible DNS records that Communicator could use to connect to the OCS server, and displays all the associated matches on the client computer.
I have made some significant improvements based on feedback and rolled it up into Version 2.0. Here are the improvements:
- The preferred DNS match (that Communicator will first attempt to use) is highlighted in the results.
- The type of DNS record that matched (e.g. SRV or A record) is displayed in the results.
- The availability of the Port associated with any DNS match can be tested with a single-click.
- Provides a warning if the record being used is TLS and the SIP domain does not match the FQDN of the OCS server/pool.
- The installed version of the Office Communicator client is shown (if one is installed).
Free Download & Additional Details: http://www.insideocs.com/tools/MOCLogin.htm
Here is a screenshot of version 2.0
For more information about the Communicator Automatic Sign-In process, see my other blog postings:
- DNS Records and Office Communicator Automatic Client Sign-In
- Automatic Office Communicator Sign-In (Part 1 – The Correct DNS Service Location (SRV) Record)
- Automatic Office Communicator Sign-In (Part 2 – ensuring the correct Subject Name on the Certificate)
- Automatic Office Communicator Sign-In (Part 3 – ensuring the client trusts the issuing Certificate Authority)
Inside OCS 