Situation: The client keeps having a DNS problem. Sometimes, users have a problem to access some LAN resources.
Troubleshooting: We find there is Event error relate to DNS.
Log Name: DNS Server
Event ID: 407
Level: Error
Description:
The DNS server could not bind a User Datagram Protocol (UDP) socket to 10.0.0.84. The event data is the error code. Restart the DNS server or reboot your computer.
In checking DNS, we find one DC uses two IP addresses. One of IP address belongs to another DC. In the IPv4 Property>Advanced>IP Settings, we find there are two IP addresses. We assume they want to enter two DCs’ IP addresses but put them in wrong place. Removing another IP address fixes the problem.
