Omada DHCP not working
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I have been having issues for some weeks now with DHCP.
It keeps stopping to work properly. Its most prevalent with wifi, devices because they are switched on/off more often. But it also happens with my wired desktop.
Setup is simple:
Omada Controller version 5.4.7
OC200 Omada controller v1.0 firmware 1.18.3 Build 20220715 Rel.56221
ER605 Router v1.0 firmware 1.2.1 Build 20220512 Rel.76748
TL-SG2210P v3.20 firmware 3.20.2 Build 20210806 Rel.55686
EAP245(EU) v3.0 firmware 5.0.6 Build 20220429 Rel. 44315
LAN config:
Gateway IP: 192.168.0.254
Network Broadcast IP: 192.168.0.255
Network IP Count: 254
Network IP Range: 192.168.0.1 - 192.168.0.254
Network Subnet Mask: 255.255.255.0
VLAN 1, no other VLANs in LAN
IP range 192.168.0.10-192.168.0.150
Maximum active clients ~20
Network config hasnt really changed since initial implementation and has worked well for over a year since the beginning I built it. Wireless coverage is excellent.
But in july '22 first symptoms started. New devices (iphones & ipad) failing to connect to wifi. Authentication went OK, but they didnt get IP address. I could see devices announced on Omada interface, but no traffic.
Later my devices wouldnt connect either after coming back home from vacation. Same symptoms. Authenticating, but no IP address. Rebooting Omada all devices didnt help. So I ended up resetting all devices and rebuilding setup.
I have tried the following:
1 rebuilt configuration: only helped temporarily
2. issue returned. so i disabled DHCP on omada and switched to wired QNAP as DHCP server. Then it worked flawlessly.
3. rebooting Omada router fixes issue, but only for 1-2 days. then its same story again.
4. keeping up to date with firmwares, but brought no changes
I cannot find anything in the logs that indicates an error with DHCP or clients connecting.
So right now I am at a loss...
