FPP on a Raspberry Pi 3 Model B on a modern WiFi router

[jalder]

Hi all, I've been running FPP on a Raspberry Pi 3 for probably a decade, but I was recently notified my WiFi5 router is end-of-life. I bought a new WiFi7 router and using the same SSID all my devices reconnected, except for my FPP Raspberry Pi 3. I've done a bit of digging and it seems like a Raspberry Pi 3 specific problem with 2.4 GHz and 5 GHz (the RPi3 is only 2.4 GHz) networks. I tried following some suggestions of separating the SSID into 2.4 Ghz -5G and -6G variants so as to not confuse the Raspberry Pi 3, but still no luck. The FPP syslog sends you down a wpa_supplicant-wlan0.conf rabbit hole on custom configurations to force the WiFI driver to only use 2.4 GHz, but these manual edits don't seem to survive a reboot. The network settings in the FPP GUI seem to overwrite manual changes you've made from a shell.

I use a patch cable and fixed ethernet IP address to directly connect my FPP to a FalconF48 (ie the 'show network' is the patch cable), so I need the WiFi to work to access the home network. This makes not having WiFi work on the FPP a deal breaker (especially since ethernet DHCP is disabled for the patch-show network). The FPP manual still notes Raspberry Pi 2 and 3 support, but I wonder with these WiFi issues if it's just time to upgrade to a Raspberry Pi 5 that will interface with 2.4 / 5 GHz networks better? Or does someone have tips on getting the custom wpa_supplicant settings to persist through a reboot?

Thanks

[breese]

Go into the logs and Click Zip.
After a few seconds it will ask where to save them.
Then upload the logs here so everyone can see them.

[Sawdust]

I'm running Pi 2 3 & Zero V1's Pi 3 has a compatible built-in WiFi so that shouldn't be an issue.

What version of FPP are you running.  v9.5.1 had an issue Tethering before WiFi could connect.  v9.5.1.1 fixed that.  Verify your version

[jalder]

Logs attached. I think the end of the syslog has the relevant wlan0 info.

FPP Version: 9.5.2
Platform: Raspberry Pi (Pi 3 Model B)
FPP OS Build: v2025-11
OS Version: Raspbian GNU/Linux 12 (bookworm)
Kernel Version: 6.12.57-v7+

You cannot view this attachment.

[jnealand]

If nothing else.  Try FPP 8.5....  I have Pi 3, 3+, 4 and several Beagles all connected to wifi with no problems.  I have 17 FPP remotes.  I also have a new wifi 7 show router and am using the smart connect option - single ssid for all frequencies.  I am running FPP 8.5... with all updates.  I have Pi4 because of availability issues of the 3+ when I was adding more FPP remotes.  IMHO there is no need for any Pi greater than a 3+ unless if I was using a colorlight card I may want a Pi4 although the 3+ supposedly works with the colorlight.  I'm not saying the 5 does not work only that it is not needed and it runs a lot hotter based on what I've read.  YMMV.