Lync 2010 and F5 Load Balancer Issues with Conversation with more than 2 users

Posted on 2013-10-14
Medium Priority
Last Modified: 2013-11-09
Hi I have an Lync 2010 Enterprise Pool with 2 Front End Servers. The pool fqdn has a DNS record that points to a Virtual IP on our Load Balancers.

when using Lync Client, user can chat 1 to 1 with no issues but when trying to have an IM conversation with more than 2 people I get the errors:

When contacting your support team, reference error ID 3098 (source ID 243).

Any help would be greatly appreciated. Just so you know we are using a properCertificate for the pool not a self signed.
Question by:ECS-ITUK
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Expert Comment

by:Jakob Digranes
ID: 39572973
Are the users trying to do web conference on LAN or external?
When doing one-to-one IM it is P2P, when multiple users connect, they use WebConferencing part (meet.yourdomain.com)
is that url pointing to VIP?

Author Comment

ID: 39573037
Thanks for the reply. Yes that URL is pointing to my VIP. All users are on the internal LAN.

Just an FYI if I add host file entry for the pool name on the 2 front end servers to point to themselves it works.

Accepted Solution

ECS-ITUK earned 0 total points
ID: 39573040
Also getting these errors in the event logs when I remove the hostfile entry.

This process was not able to update its health status

The IM Conferencing Server failed to send health notifications to the MCU factory at https://poolname.domain.com:444/liveserver/mcufactory/.
Failure occurrences: 4, since 15/10/2013 08:52:57.
Cause: Either the Front End service is not running, or poor network connectivity.
Verify that the Front End Service is available, and its machine is visible over the network.

Author Closing Comment

ID: 39635528
No Answer

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