Question : Microsoft, Windows, 2003, Event 11167 DNSAPI

Sorry for the long post here...

Today, and oddly enough, I've had some very strange networking issues unlike I've ever had before.

It started out this morning when I noticed the network was really slow. Our PDC/Exchange 2003 box somehow was displaying 10.0 Mbps vs. the usual 1.0 Gbps for the Intel network card. Tried to troubleshoot it and everything tested out fine. Changed the cable to another port and it was okay. Then noticed that our network file shares were not working or our accounting system.

In either case, I've gotten the following error messages on the following servers:

PDC/Exchange 2003:

Event ID 4015

SQL Server/App Server

Event ID 40960
Event ID 11167 (DnsApi)
Event ID 2504
Event ID 5783

Secondary DNS/File Share

Event ID 1006
Event ID 17

I've never seen this before and have never encountered this. It just happened out of nowhere with an event ID 8003 MrxSmb on my PDC. I havn't touched anything. Wondering if my DNS is hosed or something related.

Any assistance is greatly appreciated as i have no idea where to start.

Answer : Microsoft, Windows, 2003, Event 11167 DNSAPI

Time can cause other issues such as log on issues but most log on issues are caused by DNS.
Server 1 In tcpip its primary dns should be itself and secondary can be server 2
Server 2 primary should be itself and secondary should be server 1

In DNS console I assume you use forwarders for external lookups in which case you should have your ISP's IP's in there.

As far as the 10mbps then 1Gb I would look at the switch or router that the servers are connected to this could be causing all the issues to begin with.  If its dropping packets, collisions, etc

Then you say you cant vpn in which would have me further investigate the network gear.