this post was submitted on 15 Nov 2024
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20
Raspberry pi 5 sometimes loses wireless connection (sh.itjust.works)
submitted 2 days ago* (last edited 2 days ago) by [email protected] to c/[email protected]
8 comments fedilink hide all child comments
 

This is a problem I have been having for a while and I thought I had fixed it but it has recently returned.

Sometimes my raspberry pi will lose connection on a random device. Sometimes it's tailscale, sometimes it's wlan, sometimes it's both. It still shows as connected in my router even when it is unreachable. When I can access it through one device while the other is down I check for errors but can't see any. If left alone for long enough it will fix itself (today it fixed itself after 6 hours) or I can reboot if I still have access to ssh through a working device.

To fix it last time I fixed wireless localisation settings (it was set to us instead of gb) but it being fixed after that change might have been a coincidence.

My only idea for why it doesn't always work is because of a range extender I have upstairs (where the pi is) which is connected to the network using fritz! mesh. I think it's a bad idea since it is placed very close to the main router (almost directly above) but my dad insists on having it.

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[–] [email protected] 4 points 2 days ago (1 children)

I had a similar problem, it was caused by undervoltage. Are you using the official power supply?

[–] [email protected] 1 points 2 days ago (1 children)

Yes

[–] [email protected] 2 points 2 days ago

How many and what kind of accesories do you have plugged into it?

[–] [email protected] 6 points 2 days ago (1 children)

Need logs to be able to tell you much. Get some output from dmesg after it happens, but before a reboot. Syslogs couldn't hurt. Maybe setting up a metrics exporter to another machine could give you a peek into what is happening with resources.

Also give some details about OS and what you're running on it.

[–] [email protected] 1 points 13 hours ago (1 children)

Just happened again, no errors in the network manager log. I am running an up to date version of raspberry pi os. The only bare metal program I am running is pihole, the rest are in docker. I'll send a list of the containers when I can.

[–] [email protected] 2 points 12 hours ago

It's more important to get that dmesg output AFTER an event happens, but before a reboot. What you're running doesn't matter much unless you have live metrics of their behavior or resources.

[–] [email protected] 3 points 2 days ago (1 children)

Maybe a dumb question but what kind of case do you have? Hopefully not metal because I had some crazy wifi behavior before I realized the case was either dampening the signal or capturing too much noise.