New (previously peer-to-peer) Windows Server 2003 SBS R2, with all critical updates, not using Windows firewall, ICS, Exchange Server (all exchange services are disabled), or DHCP Server (client service is running though). Using router with integrated firewall, which distributes 10 live/mappable IPs.
Symptoms are:
Every 3 minutes giving event errors 4015, 4004, 4521. (in that order).
Client (XP) logins are slow (3-5 min), get hung up on "applying user settings".
Client (XP) logouts are slow, "synchronizing files" hangs.
Vista clients cannot connect to the domain at all, they give this error:
"An attempt to resolve the DNS name of a DC in the domain being joined has failed. Please verify this client is configured to reach a DNS server that can resolve DNS names in the target domain."
In dnsmgmt, Reverse Lookup, there is a single entry with a red "x" over it. When I click it, it says "zone not loaded by dns server", I cannot delete the zone. It says "Active Directory Service is unavailable".
My biggest weakness is DNS, and I'm assuming all of these problems are stemming from the DNS errors.
I have tried dcdiag /v /fix (only error is systemlog related), dcdiag /dnsall /fix, and netdiag /v /fix. I have uninstalled/reinstalled DNS twice, DNS event log and dnsmgmt errors return immediately.
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