Question 890
A wireless client can associate to an SSID but never obtains an IPv4 address, while neighboring wired clients obtain DHCP leases. Which first diagnostic check is most useful before changing the network?
Explanation
Correct Answer
This check collects evidence at the layer implicated by the symptom: association success verifies radio access, not correct DHCP transport into the client subnet. Examine the evidence before choosing the corrective change.
Incorrect Answers
This would be a reasonable check when an office installs a new 6 GHz-capable AP, but an older 802.11ac laptop cannot detect the dedicated 6 GHz-only SSID, but is less direct for the issue at hand: association success verifies radio access, not correct DHCP transport into the client subnet.
This would be a reasonable check when an event venue experiences persistent poor throughput after deploying many extra APs in close proximity on unchanged channels, but is less direct for the issue at hand: association success verifies radio access, not correct DHCP transport into the client subnet.
This would be a reasonable check when a wireless floor gets poor coverage behind dense concrete despite high AP transmit power in the corridor, but is less direct for the issue at hand: association success verifies radio access, not correct DHCP transport into the client subnet.