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Windows SBS 2011 DNS / DHCP / AD / Exchange Issue

In clients network, users keep losing network connectivity.

On WIndows SBS 2011 server, client keeps seeing these messages in the event log.

Error MSExchangeFBPulish EvenID 8213
Warning ASP.NET .050727.0
Warning MSExchange ADAccess 2080
Warning MSExchange ADAccess 2106

DCDIAG:

Performing initial setup:
Trying to find home server...
Homeserver = SERVERNAME
*Identified AD Forest.
Done gathering initial info.

Doing initial required tests
Testing server: Default-First-Site-Name\SERVERNAME
Starting test: Connectivity
the host ._msdcs.domain.local could not be resolved to an IP address. Check the DNS server DHCP, server name etc.

What would be the logical steps to find / solve this issue?

Thx for your help

CompProbSolv

First, confirm where DNS points on the server (from a CMD prompt, run ipconfig/all). It should point ONLY to itself.

Next, look in the DNS Manager and see what you have for Forward Lookup Zones. You should have one labeled -msdcs.yourdomain. Confirm that it exists and look at what else is in there. My DC has four folders inside of it (dc domains gc pdc), with folders inside of those.

Bernd Oldenbeuving

ASKER

Hi CompProbSolv,

Thx for your reply!
For both IPv4 and IPv6 DNS points to itself (IPv4=192.168.178.1 | IPv6= ::1)

CompProbSolv

What about your forward lookup zones?

ASKER CERTIFIED SOLUTION

Bernd Oldenbeuving

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