SOLUTION: Lync 2013 Front End Service cannot start with error C3E93C66

Problem:
Lync 2013 Front End Service cannot start with error C3E93C66 after TCP 5060 configuration.

By default Lync Front End Service accepts only SIP TLS connections via port 5061. But in some cases (integration with  an existing phone system via 5060. That is, you may need to
define “sip trunk” or gateway communicates via unencrypted SIP connection) Lync 2013 Front End Service needs to allow connections to port 5060.

you run the following Lync Management Shell command to allow tcp 5060
Set-CsRegistrar “registrar:Lync2013pool.contoso.com” –SipServerTcpPort 5060

then Lync Server Front-End Service stops with the following errors and cannot start.

Log Name:      Lync Server
Source:        LS Server
Date:          4/29/2014 4:48:04 PM
Event ID:      12303
Task Category: (1000)
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      Lyn2013FE.internal.contoso.com
Description:
The protocol stack reported a critical error: code C3E93C66 (SIPPROXY_E_MULTIPLE_INCOMPATIBLE_TRUST_OPTIONS). The service has to stop.
Event Xml:
xmlns=”http://schemas.microsoft.com/win/2004/08/events/event”>
<System>
<Provider Name=”LS Server” />
<EventID Qualifiers=”50152″>12303
<Level>2</Level>
<Task>1000</Task>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime=”2014-04-29T13:48:04.000000000Z” />
<EventRecordID>1946</EventRecordID>
<Channel>Lync Server</Channel>
<Computer>Lync2013FE.internal.contoso.com</Computer>
<Security />
</System>
<EventData>
<Data>C3E93C66</Data>
<Data>SIPPROXY_E_MULTIPLE_INCOMPATIBLE_TRUST_OPTIONS</Data>
</EventData>
</Event>

Log Name:      Lync Server
Source:        LS Server
Date:          4/29/2014 4:48:04 PM
Event ID:      12303
Task Category: (1000)
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      Lync2013FE.internal.contoso.com
Description:
The protocol stack reported a critical error: code C3E93C66 (Configuration failure prevented the server from starting up). The service has to stop.
Event Xml:
xmlns=”http://schemas.microsoft.com/win/2004/08/events/event”&gt;
<System>
<Provider Name=”LS Server” />
<EventID Qualifiers=”50152″>12303
<Level>2</Level>
<Task>1000</Task>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime=”2014-04-29T13:48:04.000000000Z” />
<EventRecordID>1947</EventRecordID>
<Channel>Lync Server</Channel>
<Computer>Lync2013FE.internal.contoso.com</Computer>
<Security />
</System>
<EventData>
<Data>C3E93C66</Data>
<Data>Configuration failure prevented the server from starting up</Data>
</EventData>
</Event>

Log Name:      Lync Server
Source:        LS Protocol Stack
Date:          4/29/2014 4:48:04 PM
Event ID:      14651
Task Category: (1001)
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      Lyn2013FE.internal.contoso.com
Description:
A serious configuration problem is preventing Lync Server from functioning.

An unexpected error occurred while configuring the internal servers table. Contact Product Support Services.

Cause: The Lync Server failed to initialize due to invalid settings from CMS.
Resolution:
Review and correct the CMS configuration, then start the service again.
Event Xml:
xmlns=”http://schemas.microsoft.com/win/2004/08/events/event”&gt;
<System>
<Provider Name=”LS Protocol Stack” />
<EventID Qualifiers=”50153″>14651</EventID>
<Level>2</Level>
<Task>1001</Task>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime=”2014-04-29T13:48:04.000000000Z” />
<EventRecordID>1945</EventRecordID>
<Channel>Lync Server</Channel>
<Computer>Lync2013FE.internal.contoso.com</Computer>
<Security />
</System>
<EventData>
<Data>An unexpected error occurred while configuring the internal servers table. Contact Product Support Services.</Data>
</EventData>
</Event>

SOLUTION:
Using topology builder set IP V4 address specifically. Lync 2013 has issue with TCP connections

1-Under Lync Server 2013/Enterprise Edition Front End Pools/under the pool

2-Select Lync Server 2013 Enterprise Front End Server, right-click edit properties
Select Limit Service usage to Selected IP addresses
3- add IP address of the Front End server manually to the primary address field
PSTN IP address field will be the same.

4-Click OK and Publish Topology

5- Start Lync Front End Service. The Service will start with the following information.

Log Name:      Lync Server
Source:        LS Protocol Stack
Date:          4/29/2014 4:57:48 PM
Event ID:      14348
Task Category: (1001)
Level:         Information
Keywords:      Classic
User:          N/A
Computer:      Lync2013FE.internal.contoso.com
Description:
A configured transport was successfully started.

Transport:TCP, IP address:10.10.205.101, Port:5060, with special options enabled:

No special options
Event Xml:
xmlns=”http://schemas.microsoft.com/win/2004/08/events/event”&gt;
<System>
<Provider Name=”LS Protocol Stack” />
<EventID Qualifiers=”17385″>14348</EventID>
<Level>4</Level>
<Task>1001</Task>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime=”2014-04-29T13:57:48.000000000Z” />
<EventRecordID>2405</EventRecordID>
<Channel>Lync Server</Channel>
<Computer>Lync2013FE.internal.contoso.com</Computer>
<Security />
</System>
<EventData>
<Data>TCP</Data>
<Data>10.10.205.101</Data>
<Data>5060</Data>
<Data>
No special options</Data>
</EventData>
</Event>

Cause:
Lync 2013 has some issues with TCP 5060 connections. You need to specify IP address in order Lync to bind the IP address for TCP connections.

Advertisements
Gallery | This entry was posted in Lync 2013 and tagged , , . Bookmark the permalink.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s