Raspberry pi4 Wifi Disconnections.

[capthookb]

I have a raspberry pi4 with 4gb RAM and it connects to my tv as a media player. I'm controlling it with a remote control and the only access I have to the RPI4 is through ssh.

While I have setup netctl in order to connect to my home access point, sometimes the raspberry gets disconnected and won't reconnect. It wont' reconnect even after restart. The only way I can reconnect the wifi, is to connect my laptop and raspberry pi by ethernet, ssh to RPI4 and restart the netctl profile.
How can I trace the reason for this behaviour?
I have read about some bugs regarding RPI4 and wifi, when in 4K resolution: https://www.enricozini.org/blog/2019/hi ... esolution/ but my resolution setting is 720p.
Does anyone has some idea on what to do?

[lategoodbye]

Anything useful in the kernel log dmesg?

[capthookb]

Nothing at all.
dmesg is flooded with messages like this:
$this->bbcode_second_pass_code('', '
...
audit: type=1101 audit(1588416608.109:124): pid=1004 uid=0 auid=4294967295 ses=4294967295 msg='op=PAM:accounting grantors=pam_tally2,pam_access,pam_unix,pam_permit,pam_time acct="root" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
...
')

I decided to connect the wifi usb dongle, Realtek 8192, that I was using with my previous Raspberry Pi version and it works like a charm. I haven't experienced a single disconection.
So I guess it should be a firmware/driver problem/bug of the builtin wifi. Too bad!