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[BUG] DHCP domain field bug while Archer AX23 in AP mode

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[BUG] DHCP domain field bug while Archer AX23 in AP mode

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[BUG] DHCP domain field bug while Archer AX23 in AP mode
[BUG] DHCP domain field bug while Archer AX23 in AP mode
2025-08-17 20:16:03 - last edited 2025-08-18 01:10:55
Model: Archer AX23  
Hardware Version: V1
Firmware Version: 1.1.1 Build 20240822 Rel. 42048

I’m using an Archer AX23 v1.2 as a node in my EasyMesh network (Archer C6 v4 is a controller in AP mode), positioned behind a Technicolor FGA2235 provided by the ISP.

 

In the syslog of the ISP router, I see (a lot of) continuous warnings like this:

  • dnsmasq-dhcp: Ignoring domain 2 for DHCP host name ArcherAX23-v1

 

This message repeats every 30-40 seconds. It appears that the AX23 is sending an invalid DHCP Option 15 (Domain Name = “2”) when requesting or renewing its lease.

 

Expected behaviour:

  • The AX23 should not send an invalid domain name in DHCP requests, especially in AP mode.

 

Firmware:

Latest available (1.1.1 Build 20240822 Rel. 42048), but the issue persists.

 

Impact:

The functionality is not broken, but the constant warnings fill up the ISP router logs unnecessarily.

https://feriman.com
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#1
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6 Reply
Re:[BUG] DHCP domain field bug while Archer AX23 in AP mode
2025-08-20 08:19:03

Hello@Feriman ,

Welcome to our community.

 

The Satellite router sends these reports every half minute to ensure proper communication with the frontend. Therefore, this is normal behavior.

If it doesn't affect usage, I recommend not worrying about it for now.

 

Best Regards.

Welcome to Community！ Check Out the Latest Posts: △New Firmware for Archer GE550/GE650 V1 Introduces AI-QoS, EasyMesh IoT Expansion, and More! △New Firmware for Archer BE800 V1 to Support VPN Merge, EasyMesh Guest/IoT Extend, and More △New Firmware Releases for Archer BE805/BE450 V1 to Support VPN Merge, New ECO Mode, and More △New Firmware for Archer BE400 V1 to Support IPv6 VPN, And More Click △Helpful Or ☆Recommended Solution if the post/answer helps.
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#2
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Re:[BUG] DHCP domain field bug while Archer AX23 in AP mode
2025-08-20 19:11:02

@Joseph-TP 

 

Thanks!

 

It only stood out because 90-95% of the logs in the router provided by the ISP are about this, making it difficult to find the information that is actually important.

 

If this function can be improved, is it conceivable that it will be improved in the future?

https://feriman.com
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#3
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Re:[BUG] DHCP domain field bug while Archer AX23 in AP mode
2025-08-21 03:35:54

Hello@Feriman ,

Regarding log reading, is this a daily requirement for you?

 

Typically, if a device experiences an anomaly, we will collect logs and update them to our engineers. Engineers use specialized tools to read the log information, which helps with problem analysis.

 

If the above report ratios affect the efficiency of log analysis, I believe our developers may optimize this in the future.

 

Please don't hesitate to contact us if you have any other log-related requests.

Welcome to Community！ Check Out the Latest Posts: △New Firmware for Archer GE550/GE650 V1 Introduces AI-QoS, EasyMesh IoT Expansion, and More! △New Firmware for Archer BE800 V1 to Support VPN Merge, EasyMesh Guest/IoT Extend, and More △New Firmware Releases for Archer BE805/BE450 V1 to Support VPN Merge, New ECO Mode, and More △New Firmware for Archer BE400 V1 to Support IPv6 VPN, And More Click △Helpful Or ☆Recommended Solution if the post/answer helps.
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#4
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Re:[BUG] DHCP domain field bug while Archer AX23 in AP mode
2025-08-21 05:11:18 - last edited 2025-08-21 05:11:36

Hi @Joseph-TP,

I just want to clarify that I regularly check my ISP router's logs as part of my daily work, and this message is essentially flooding them. Because of that, it’s difficult to spot real issues amongst them.

 

It would be great if the AX23 firmware could stop sending this strange domain value in AP mode, or at least provide an option to prevent warnings from being triggered all the time.

 

For comparison: there’s also an AX53 v2 in my setup (same satellite role), and that one behaves normally without spamming the logs.

 

I really hope you can forward this to the development team for a fix.

 

Thanks a lot!

Feriman

https://feriman.com
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#5
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Re:[BUG] DHCP domain field bug while Archer AX23 in AP mode
2025-08-22 02:03:46

Hi@Feriman ,

 

Thanks for your comparison and the test results.

The tech team has been made aware of your case; they will likely reach out to you via email to continue troubleshooting. Please check your email inbox and confirm.

Best Regards.

Welcome to Community！ Check Out the Latest Posts: △New Firmware for Archer GE550/GE650 V1 Introduces AI-QoS, EasyMesh IoT Expansion, and More! △New Firmware for Archer BE800 V1 to Support VPN Merge, EasyMesh Guest/IoT Extend, and More △New Firmware Releases for Archer BE805/BE450 V1 to Support VPN Merge, New ECO Mode, and More △New Firmware for Archer BE400 V1 to Support IPv6 VPN, And More Click △Helpful Or ☆Recommended Solution if the post/answer helps.
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#6
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Re:[BUG] DHCP domain field bug while Archer AX23 in AP mode
2025-08-22 09:08:22

@Joseph-TP

 

I received it and replied, thank you!

https://feriman.com
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#7
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