Lee, I do not have a solution for you, but as you likely found via Internet searches, you are not alone in having issues with this Realtek device/driver.
Like you suggested, I too once installed Linux Mint Ubuntu to a laptop to get over hardware issues. Hopefully the Realtek driver developers will rectify the issue. All I can suggest is to try backports to get the latest Debian package (but I saw that others have already suggested this): If backports is not in your apt sources, then add the following lines: # nano /etc/apt/sources.list # bookworm-backports, previously on backports.debian.org deb https://deb.debian.org/debian/ bookworm-backports main contrib non-free non-free-firmware deb-src https://deb.debian.org/debian/ bookworm-backports main contrib non-free non-free-firmware # apt install -t bookworm-backports firmware-realtek # export PATH=$PATH:/usr/sbin # update-initramfs -u # systemctl reboot However if the Debian backports realtek network driver version is still currently faulty, then this will not solve your network issues. https://backports.debian.org/Instructions/ https://forums.opensuse.org/t/realtek-8822ce-randomly-not-available/175390 Realtek 8822ce randomly not available https://forums.debian.net/viewtopic.php?t=157874 WiFi frequently disconnects. Using rtw8822ce https://bbs.archlinux.org/viewtopic.php?id=278866 [SOLVED] High Wifi Latency with rtw_8822ce https://discussion.fedoraproject.org/t/rtw-8822ce-wlan-not-working-since-kernel-5-17-turn-off-location-services/62344 Rtw_8822ce Wlan not working since Kernel 5.17 | Turn off location services! https://discussion.fedoraproject.org/t/wifi-keeps-disconnecting-using-rtw-8822ce/100963 Wifi keeps disconnecting. Using rtw_8822ce "It seems you have done quite a bit of searching. What you may not have noted is that there are several threads here about problems with the rtw_8822ce driver and the cards it supports (poorly it seems) in linux. Most seem to have replaced that card for a fix. I would strongly suggest that you either replace that card or get a second card (maybe even a usb dongle) that is better supported so you do not have to fight with the realtek issues." George. On Monday, 14-10-2024 at 22:09 Lee wrote: > I have a Lenovo G3 laptop running Debian 12 with wi-fi that works for > minutes at a time. > > I've tried a lot of suggested changes to /etc/modprobe.d but none have > fix my wi-fi problem. > One post I saw said their laptop worked when they tried Ubuntu Live. Same here! > > My laptop is set to do a UEFI boot [?? I really don't know the proper terms]. > Is there a "proper" place to get firmware from or should I just get it off the > Ubuntu USB stick? > And once I get the firmware, what do I have to do to get Debian to use > that instead of > the most probably broken firmware it's using now? > > For comparision, log messages for the wireless card when running > Ubuntu list the firmware > as version 9.9.15 > > ubuntu@ubuntu:~$ sudo dmesg | grep -i 8822ce > [ 20.205438] rtw_8822ce 0000:02:00.0: enabling device (0000 -> 0003) > [ 20.239352] rtw_8822ce 0000:02:00.0: WOW Firmware version 9.9.4, > H2C version 15 > [ 20.243721] rtw_8822ce 0000:02:00.0: Firmware version 9.9.15, H2C version 15 > [ 20.297759] rtw_8822ce 0000:02:00.0 wlp2s0: renamed from wlan0 > > and the log messages when running Debian and wireless is mostly > unusable show the > firmware as 9.9.14 > > ----- Debian > [ 4.206179] rtw_8822ce 0000:02:00.0: enabling device (0000 -> 0003) > [ 4.208338] rtw_8822ce 0000:02:00.0: firmware: direct-loading > firmware rtw88/rtw8822c_wow_fw.bin > [ 4.208346] rtw_8822ce 0000:02:00.0: Firmware version 9.9.4, H2C version 15 > [ 4.208366] rtw_8822ce 0000:02:00.0: firmware: direct-loading > firmware rtw88/rtw8822c_fw.bin > [ 4.208368] rtw_8822ce 0000:02:00.0: Firmware version 9.9.14, H2C version 15 > [ 4.326996] rtw_8822ce 0000:02:00.0 wlp2s0: renamed from wlan0 > > I don't know if there's some other difference, but it'd be nice to see > if just upgrading to > Firmware version 9.9.15 fixes my wifi. But how to do that? > > TIA > Lee >