I had to replace older UPS. I think Flint 2 was drawing too much power. Every few days the UPS alarm would go off.
Guess I should have installed openwrt logging to see if that was the cause.
I'd be worried if someone is using the routers processing remotely.
I do have wifi power set lower.
It got about 40ish hours before crashing
I don't think anything was on 5Ghz SSID except maybe my phone.
Attached pre and post crash logs.
crashlogs.zip (12.4 KB)
To assist you more effectively, may I ask how you obtained this log? At first glance, there doesnât seem to be any anomaly in the log.
Hello,
Please use the factory power supply to check the issue again
Yes. I used the
logread -f > /root/sys.log &
method
and for the post log, I grabbed the /var/system.log once I logged in.
re: No anomalies.
That's the problem I have had. I used to try leaving a terminal open with a tail -f of the system log.
But I was never able to catch anything that looked related, nor were there any crash logs after
the reboot.
It's about 30cm too short to reach the router. I have things like a nas, switch
and cabling running to shelving where they normally all sit together.
I will look for a cable extender, as a straight swap is awkward.
The PSU I am using is a Shenzhen Huntkey 4A brick.
I suppose it is possible that it tops out, but it used to power the Flint v1 and
another modem in parallel with no issues.
Could it be that the stock firmware draws more power and it can
pass over a limit without any logging?
I was able to run recent op24 firmware without frequent crashes, and
v4.5.6 stock seemed more stable. I can't remember now if v4.5.6
crashed much when I first got the router. I have a vague feeling
that my impression of the flint2 when I got it was that it wasn't as
stable as the flint v1, but it wasn't crashing everyday.
Edit:
I see I actually posted this before:
So I don't think the problem is just the PSU alone.
I used to have an 8A PSU somehwere. I wonder if I can find it.
Hi,
Thanks for your comparison test.
Please email to contact us [email protected], and cite this thread.
I'll email support
Just FYI:
-----------------------------------------------------
OpenWrt 21.02-SNAPSHOT, r15812+1085-46b6ee7ffc
-----------------------------------------------------
root@core:~# uptime
11:33:21 up 2 days, 16:46, load average: 0.09, 0.05, 0.02
root@core:~#
That's with the majority of devices on 2.4Ghz (tablet/TVs streaming),
and only my phone on 5Ghz doing light browsing.
Also that was using the non OEM psu as I wanted to allow it some time
to see if it still rebooted when 5Gz wasn;t heavily used.
I'm going to switch back to the OEM 4A psu and make the 5Ghz
band available to all the other devices again, and compare.
Back on the OEM psu.
But not many devices on the network for the next few days due to travel.
Update:
It crashed later in the day when everyone was home and streaming.
Using the the OEM psu and 5Ghz open for general use.
Another crash while I was tailing the log.
Didn't see anything, just had my ssh session drop
root@core:~# uptime
21:24:41 up 5 min, load average: 0.12, 0.27, 0.16
root@core:~# tail -20 /root/sys.log
Tue Jul 8 21:04:57 2025 kern.warn kernel: [ 9304.848221]
Tue Jul 8 21:12:27 2025 kern.warn kernel: [ 9755.150737] 7986@C08L2,ap_peer_disassoc_action() 3645: ASSOC - 1 receive DIS-ASSOC request
Tue Jul 8 21:12:27 2025 kern.warn kernel: [ 9755.159225] 7986@C01L2,wifi_sys_disconn_act() 1002: wdev_idx=0
Tue Jul 8 21:12:27 2025 kern.notice kernel: [ 9755.169603] 7986@C08L3,hw_ctrl_flow_v2_disconnt_act() 172: wdev_idx=0
Tue Jul 8 21:12:27 2025 kern.warn kernel: [ 9755.170203] 7986@C13L2,MacTableDeleteEntry() 1938: Del Sta:7c:xxxxxxxxxx
Tue Jul 8 21:12:27 2025 kern.debug kernel: [ 9755.323606] entrytb_aid_aquire(): found non-occupied aid:33, allocated from:8
Tue Jul 8 21:12:27 2025 kern.warn kernel: [ 9755.323628] 7986@C13L2,MacTableInsertEntry() 1577: New Sta:7c:10:c9:0c:c5:a6
Tue Jul 8 21:12:27 2025 kern.notice kernel: [ 9755.335080] 7986@C08L3,ap_cmm_peer_assoc_req_action() 1714: Recv Assoc from STA - 7c:10:c9:0c:c5:a6
Tue Jul 8 21:12:27 2025 kern.err kernel: [ 9755.335135] 7986@C08L1,APBuildAssociation() 745: invalid status code(53) !!!
Tue Jul 8 21:12:27 2025 kern.notice kernel: [ 9755.342256] 7986@C08L3,ap_cmm_peer_assoc_req_action() 2241: ASSOC Send ASSOC response (Status=53)...
Tue Jul 8 21:12:28 2025 kern.notice kernel: [ 9755.545803] 7986@C08L3,ap_cmm_peer_assoc_req_action() 1714: Recv Assoc from STA - 7c:xxxxxxxxxx
Tue Jul 8 21:12:28 2025 kern.notice kernel: [ 9755.546046] 7986@C08L3,ap_cmm_peer_assoc_req_action() 2241: ASSOC Send ASSOC response (Status=0)...
Tue Jul 8 21:12:28 2025 kern.notice kernel: [ 9755.546094] 7986@C01L3,wifi_sys_conn_act() 1115: wdev idx = 3
Tue Jul 8 21:12:28 2025 kern.notice kernel: [ 9755.546365] 7986@C08L3,hw_ctrl_flow_v2_connt_act() 215: wdev_idx=3
Tue Jul 8 21:12:28 2025 kern.notice kernel: [ 9755.677440] 7986@C15L3,WPABuildPairMsg1() 5310: <=== send Msg1 of 4-way
Tue Jul 8 21:12:28 2025 kern.notice kernel: [ 9755.687115] 7986@C15L3,PeerPairMsg2Action() 6303: ===>Receive msg 2
Tue Jul 8 21:12:28 2025 kern.notice kernel: [ 9755.687711] 7986@C15L3,WPABuildPairMsg3() 5595: <=== send Msg3 of 4-way
Tue Jul 8 21:12:28 2025 kern.notice kernel: [ 9755.694713] 7986@C15L3,PeerPairMsg4Action() 6734: ===>Receive msg 4
Tue Jul 8 21:12:28 2025 kern.warn kernel: [ 9755.700115] 7986@C15L2,PeerPairMsg4Action() 7098: AP SETKEYS DONE(rax0) - AKMMap=WPA3PSK, PairwiseCipher=AES, GroupCipher=AES, wcid=26 from 7c:xxxxxxxxxx
Tue Jul 8 21:12:28 2025 kern.warn kernel: [ 9755.700115]
root@core:~#
Hi,
I saw you have email contact us to get replacement, look forward the situation of new one.
Yes.
I just have to figure out how to run the network until I get the replacement.
Try to check the temperature.
root@OpenWrt:~# cat /sys/class/thermal/thermal_zone0/temp
48452
Mine usually works at 48°C as you can see above.
Oh that's a handy tip
root@core:~# date; uptime; cat /sys/class/thermal/thermal_zone0/temp
Thu Jul 10 17:49:21 BST 2025
17:49:21 up 1 day, 20:29, load average: 0.13, 0.14, 0.10
58440
That's without any 5Ghz clients active.
I'll be RMAing it once I get a temporary router configured to
take its place.
But it might worth sampling the temperature with the 5Ghz active
and under load.
It seems too warm with this very tiny load.
Maybe when it's under heavy load it's triggering the thermal limit. But I guess the thermal limit is around 90°C (just guessing, I really don't know).
I've put a cron job in to cat the temp to a log every 3 minutes.
If I get a chance later, I'll enable 5Ghz and do some file transfers.
You can also install luci-app-statistics and collectd-mod-thermal it's even easier 
YOU HAVE A THERMAL ISSUE, YOU HAVE ALWAYS HAD A THERMAL ISSUE, 58c is WAY to hot if you arenât hammering the router. Have you tried something simple like a small fan on top of the router. Real easy troubleshooting step. You logs show nothing this definitely tells you itâs HARDWARE
GLinet Support reached out to me with RMA instructions.
I swapped out the Flint2 for my Beryl AX last evening.
It's been up for 20h and seems warm but stable and survived the evening of streaming.
This a quick sample of the temperatures I recorded for the Flint2 last week.
20:00 onwards tends to be when most devices are utilising the internet
and would be in crash terrority. Also 5Ghz was only used by one device.
Thu Jul 10 19:50:00 BST 2025
58592
Thu Jul 10 19:52:00 BST 2025
58744
Thu Jul 10 19:54:00 BST 2025
58896
Thu Jul 10 19:56:00 BST 2025
59200
Thu Jul 10 19:58:00 BST 2025
59048
Thu Jul 10 20:00:00 BST 2025
58896
Thu Jul 10 20:02:00 BST 2025
58896
Thu Jul 10 20:04:00 BST 2025
59200
Thu Jul 10 20:06:00 BST 2025
59048
Thu Jul 10 20:08:00 BST 2025
58896
Thu Jul 10 20:10:00 BST 2025
59352
Thu Jul 10 20:12:00 BST 2025
58896
Thu Jul 10 20:14:00 BST 2025
59200
Thu Jul 10 20:16:00 BST 2025
59200
Thu Jul 10 20:18:00 BST 2025
59352
Thu Jul 10 20:20:00 BST 2025
59200
Thu Jul 10 20:22:00 BST 2025
59504
Thu Jul 10 20:24:00 BST 2025
59808
Thu Jul 10 20:26:00 BST 2025
59352
Thu Jul 10 20:28:00 BST 2025
59656
Thu Jul 10 20:30:00 BST 2025
59504
Thu Jul 10 20:32:00 BST 2025
59504
Thu Jul 10 20:34:00 BST 2025
59656
snip
Thu Jul 10 21:00:00 BST 2025
59960
Thu Jul 10 21:02:00 BST 2025
60112
Thu Jul 10 21:04:00 BST 2025
60112
Thu Jul 10 21:06:00 BST 2025
60112
Thu Jul 10 21:08:00 BST 2025
59960
Thu Jul 10 21:10:00 BST 2025
60112
Thu Jul 10 21:12:00 BST 2025
59808
Thu Jul 10 21:14:00 BST 2025
59808
Thu Jul 10 21:16:00 BST 2025
59808
Thu Jul 10 21:18:00 BST 2025
59808
Thu Jul 10 21:20:00 BST 2025
59808
Thu Jul 10 21:22:00 BST 2025
60112
Thu Jul 10 21:24:00 BST 2025
59960
Thu Jul 10 21:26:00 BST 2025
59808
Thu Jul 10 21:28:00 BST 2025
59960
Thu Jul 10 21:30:00 BST 2025
59808
I haven't got a suitable fan for the location.
I do have spare PC fans but not a convenient way to power them.