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- HP Community
- Printers
- LaserJet Printing
- DHCP problem on Laserjet Pro MFP M479fdw

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06-02-2021 04:50 AM
I see in the syslog of my new LaserJet Pro MFP M479fdw DHCP error messages every 5 minutes.
This might be also the reason, why the printer is not going into the sleep mode.
The wire network is configured with static IP address. The wireless network is switched off.
Why is there any DHCP activity in this configuration?
And why this leads to an error?
I need a solution to solve the issue and to have the possibility to go to sleep mode and to stop the syslog spam.
syslog:
Information 2021-06-02T11:28:14 SYSTEM Event detection: Received log which severity is [err]. Log content: [dsrv: _dhcp_server_addr_mgmt_janitor_cb | wrote correct number of bytes: 4]
Information 2021-06-02T11:28:13 SYSTEM Event detection: Received log which severity is [err]. Log content: [dsrv: DHCP_SERVER_entry() | Calling select() with NULL timeout!]
Information 2021-06-02T11:28:12 SYSTEM Event detection: Received log which severity is [err]. Log content: [dsrv: DHCP_SERVER_entry() | Set dhcp_server_fd (155364) in RD_FDSET!]
Information 2021-06-02T11:28:11 SYSTEM Event detection: Received log which severity is [err]. Log content: [dsrv: DHCP_SERVER_entry() | Set dhcp_server_link_fd in RD_FDSET!]
Information 2021-06-02T11:28:11 SYSTEM Event detection: Received log which severity is [err]. Log content: [dsrv: DHCP_SERVER_entry() | Set dhcp_server_socket socket (751) in RD_FDSET!]
Information 2021-06-02T11:28:10 SYSTEM Event detection: Received log which severity is [err]. Log content: [dsrv: DHCP_SERVER_entry() | select() returned (LEAVING 'ret > 0') !]
Information 2021-06-02T11:28:09 SYSTEM Event detection: Received log which severity is [err]. Log content: [dsrv: DHCP_SERVER_entry() | Done with dhcp_server_read_fd event!]
Information 2021-06-02T11:28:08 SYSTEM Event detection: Received log which severity is [err]. Log content: [dsrv: DHCP_SERVER_janitor() | exit]
Information 2021-06-02T11:28:07 SYSTEM Event detection: Received log which severity is [err]. Log content: [dsrv: dhcp_server_addr_mgmt_janitor() got called]
Information 2021-06-02T11:28:06 SYSTEM Event detection: Received log which severity is [err]. Log content: [dsrv: DHCP_SERVER_janitor() | enter]
Information 2021-06-02T11:28:05 SYSTEM Event detection: Received log which severity is [err]. Log content: [dsrv: DHCP_SERVER_entry() | calling DHCP_SERVER_janitor]
Information 2021-06-02T11:28:04 SYSTEM Event detection: Received log which severity is [err]. Log content: [dsrv: DHCP_SERVER_entry() | dhcp_server_fd_msg: 1]
Information 2021-06-02T11:28:03 SYSTEM Event detection: Received log which severity is [err]. Log content: [dsrv: DHCP_SERVER_entry() | read > 0 bytes on dhcp_server_read_fd event: 4]
Information 2021-06-02T11:28:02 SYSTEM Event detection: Received log which severity is [err]. Log content: [dsrv: DHCP_SERVER_entry() | Recv'd a dhcp_server_read_fd event!]
Information 2021-06-02T11:28:01 SYSTEM Event detection: Received log which severity is [err]. Log content: [dsrv: _dhcp_server_addr_mgmt_janitor_cb fired]
Information 2021-06-02T11:28:01 SYSTEM Event detection: Received log which severity is [err]. Log content: [dsrv: DHCP_SERVER_entry() | select() returned (ENTERING 'ret > 0') !]
06-02-2021 11:20 AM
HP just released a new firmware update for this device and the fix list includes issues with DHCP.
New firmware is 002_2118A
Download from support.hp.com
I am a volunteer, offering my knowledge to support fellow users, I do not work for HP nor speak for HP.