A technician is unable to join a computer to the Windows domain However, the computer can ping the domain controller by IP address. Which of the following is the most likely reason?

The correct answer is A. The DNS settings are incorrect. Joining a Windows domain requires proper DNS resolution to locate the domain controller by name. Even though the computer can ping the domain controller by IP address, incorrect DNS settings prevent the system from resolving domain services, causing the domain join to fail.

Submitted by dimitri_ru· Mar 30, 2026Networking

Question

Options

AThe DNS settings are incorrect
BThe firewall configuration is wrong
CIPv6 is enabled on the computer
DThe computer is not connected to the network

How the community answered

(38 responses)

A
63% (24)
B
11% (4)
C
5% (2)
D
21% (8)

Explanation

Joining a Windows domain requires proper DNS resolution to locate the domain controller by name. Even though the computer can ping the domain controller by IP address, incorrect DNS settings prevent the system from resolving domain services, causing the domain join to fail.

Topics

#DNS configuration#Domain join#Network troubleshooting#Name resolution

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