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HP LaserJet 500 color/600 Printer - Unable to Connect to Ethernet Switch Which Has 802.1x Enabled

Environment

CHD
M551
M600
802.1x
Switch
Connect
M601
M602
M603

Questions/Symptoms

Printer will not connect to Ethernet switch
Switch has 802.1x enabled
Jetdirect is not configured for 802.1x

Cause

Despite the printer’s Jetdirect not being configured for 802.1x, it still responds with default values to the switch's 802.1x challenge which is sent when the switch detects a link up on the port. Since the default values do not match any account on the authenticating server, the switch shuts down the port.

Answer/Solution

Upgrade to firmware 2200643_288342 or greater.