Many times I have had issues with starting the OCS services on a consolidated front-end starting (fortunately, this has been mostly confined to lab environments). For the benefit of others, here are the 4 most common reasons for OCS service logon failures that I have experienced:
The OCS Service Logon Accounts Have Expired.
Event log errors 7000 [...]
The Inside OCS Quality of Experience (QoE) – Quick Facts post has been a popular read. This post provides additional answers to the most common questions about deploying the OCS 2007 R2 Monitoring Role (which now houses the QoE and Call Detail Record (CDR) functionality in R2).
Q. Is installation of the Monitoring Server Role supported on a Virtual [...]
If the left-hand side of your users’ SIP addresses contain a common user attribute in Active Directory such as first name, last name (or both) there is a good chance the SIP address will need to be updated to match any change in the corresponding user attribute(s).
The thought of changing an important attribute like the [...]
January 18, 2010 Update: the January 2010 updates for the Live Meeting Console and the Live Meeting Conferencing Add-In are available. The Conferencing Add-In update contains a 64-bit version which integrates with the Office 2010 Beta.
January 13, 2010 Update: the recently released January 2010 update to the Communicator 2007 R2 client (version 3.5.6907.83) fixes some [...]
There have recently been several noteworthy changes to the Microsoft TechNet OCS and UC resources available on TechNet. Here is a summary of the changes:
1) The OCS TechNet Forums have Moved
If you have never used them before, the Microsoft OCS TechNet Forums are a great resource for asking questions and resolving problems. As of last [...]
If you are planning on deploying Communicator Web Access (CWA) here are 10 important things to know based on experience:
A CWA R2 server is needed for providing users with PIN numbers for the OCS R2 dial-in audio conferencing feature.
A CWA R2 server is required to enable desktop sharing with Anonymous or Federated External Contacts.
To make desktop [...]
A quick but important reminder for those deployments upgrading their user clients from Office Communicator 2005 to Office Communicator 2007 or 2007 R2.
When an OCS user gets enabled for Enhanced Presence, either through the OCS management console or programmatically (through a script modifying AD directly or the WMI provider), Communicator 2005 users can still login. [...]
After OCS is deployed and the Office Communicator and Office Live Meeting clients are being rolled out to your users, the next question you will likely have is how do I configure the Communicator client for users so that it is tailored for my environment? This can be a challenging task in an diverse environment.
Practically, [...]
The ability to transfer files in Office Communicator is an effective collaboration feature (and is often underused). A file can be shared in the context of a discussion by dragging-and-dropping it directly in the Communicator conversation session window. It is real time, and you avoid the storage headaches and application-context-switch that email attachments can bring.
From [...]
In case you missed it, as reporting by several blogs and the Microsoft Office Communications Server team, a recent O/S patch may cause your LCS 2005, OCS 2007, or OCS 2007 R2 servers to think they are an evaluation version which has expired, and the OCS services will not start (e.g. after a reboot).
Fortunately, uninstalling the patch fixes [...]