This thread is for a problem with the AX200 BlueTooth support. You have Realtek ethernet and don’t even mention BT so you need to create a new topic with an accurate description of your problem.
I moved the Request out of the topic, please give more information about the problem you have and/or if it is correct as i mentioned i the title.
You can add more tags, so we do see which version you are using and which edition/spin.
So far, I’ve tried the workaround that makel sent (set ClassicBondedOnly=false in /etc/bluetooth/input.conf) I also had the UserspaceHID=false parameter. The reconnection is working fine now, let’s see how it will behave for a couple of days
Update, reconnection does not work after the restart. The input.conf did not change, I tried just restarting via sudo systemctl restart bluetooth.service at the moment it worked, but then the controller still does not reconnect. Here I found the sudo btmgmt ssp off command to help, but it also works before restarting (I don’t understand the logic of operation at all, the other one doesn’t work)