DHCP Static reservations not respected
The issue I reported a few months ago suddenly returned: https://community.tp-link.com/en/business/forum/topic/711542
I have a bunch of DHCP reservations, but they are no longer being respected. From the log file:
| Gateway DHCP Server Module Information |
DHCP Server allocated IP address 192.168.40.17 for the client[MAC: 44-bb-3b-XX-XX-6b].
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Mar 03, 2025 01:07:43 pm |
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| Gateway DHCP Server Module Information |
DHCP Server allocated IP address 192.168.40.16 for the client[MAC: 44-bb-3b-XX-XX-3c].
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Mar 03, 2025 01:06:43 pm |
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| Gateway DHCP Server Module Information |
DHCP Server allocated IP address 192.168.40.12 for the client[MAC: 44-bb-3b-XX-XX-37].
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Mar 03, 2025 01:05:42 pm |
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| Gateway DHCP Server Module Information |
DHCP Server allocated IP address 192.168.50.19 for the client[MAC: 10-2c-b1-XX-XX-bf].
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Mar 03, 2025 01:05:23 pm |
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| Gateway DHCP Server Module Information |
DHCP Server allocated IP address 192.168.40.18 for the client[MAC: 44-bb-3b-XX-XX-f1].
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Mar 03, 2025 01:04:43 pm |
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| Gateway DHCP Server Module Information |
DHCP Server allocated IP address 192.168.50.18 for the client[MAC: 8c-85-80-XX-XX-52].
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Mar 03, 2025 01:04:43 pm |
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| Gateway DHCP Server Module Information |
DHCP Server allocated IP address 192.168.50.16 for the client[MAC: 06-17-b6-XX-XX-b6].
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Mar 03, 2025 01:04:39 pm |
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| Gateway DHCP Server Module Information |
DHCP Server allocated IP address 192.168.50.13 for the client[MAC: 8c-85-80-XX-XX-5b].
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Mar 03, 2025 01:04:36 pm |
From the DHCP Reservations page:
8c-85-80-XX-XX-5b: 192.168.50.13 (this one is OK)
06-17-b6-XX-XX-b6: 192.168.50.11 (but got .16 instead)
8c-85-80-XX-XX-52: 192.168.50.12 (but got .18 instead)
44-bb-3b-XX-XX-f1: 192.168.40.33 (but got .18 instead)
10-2c-b1-XX-XX-bf: 192.168.50.15 (but got .19 instead)
44-bb-3b-XX-XX-37: 192.168.40.30 (but got .12 instead)
44-bb-3b-XX-XX-3c: 192.168.40.31 (but got .16 instead)
44-bb-3b-XX-XX-6b: 192.168.40.32 (but got .17 instead)
Obviously, this messes with my entire network as some of these are VideoSecurity or IOT devices that require a static IP addresses to be access from different VLANs.
Rebooting these devices or rebooting the switch or access point to which they are connected does NOT resolve the issue. The only thing that sometimes works is rebooting the router.
There are no error messages in the log. The router is for some reason completely ignoring the DHCP Reservations I've made, across multiple VLANs, and just hands out random DHCP addresses instead.
Router firmware is v1.2.3. Controller software is 5.15.8.2 running on a Linux host.