Just purchased Brax3 and I does not connect to my newly installed fiber optics at home, although it connects to other WiFi networks either at the office.
There are several threads on this on the BraX3 Forum. There is a known bug with connecting to a small number of specific routers (and WPA2) that is being worked on, which is the primary cause of the issue, and hopefully there will be an update to resolve it for iodéOS on the BraX3 (its a combined OS and hardware issue). However it may also just be a settings issue or similar for you.
In the meantime you may want to look through these and check if you have the same situation, or the same model router as others have reported, or similar, in which case it may not be fixable right now. But you can try some of the suggested actions to see if it resolves it too that will be some of these threads:
The official BraX3 one:
Also these - unfortunately many of them do duplicate some info, but hopefully you will find things to check or try and/or identify for sure if your router is one of the ones affected, that the phone and it won’t play nicely together…
Thanks to @mycenius for the time to link to the relevant brax forum posts. I haven’t been able to contribute there in the past month due to some pending negotiations between Braxtech and iodé on our contribution arrangements.
But as noted, it is an issue with the LineageOS base in combination with the Brax3 hardware that is causing the problem with wifi authentication to several WPA2 routers / access points. Most “problem access points” are typically older home routers, those provided by ISPs, dd-wrt, etc (again look at the chart linked to get a better feel for the problem spots).
Brax has been working with some Lineage devs to try and tackle the issue, as our devs here have not been able to resolve the problem as of yet.
Sorry for the issue.