Sorry for my english, I am not really fluent and this is the first question i post on stackoverflow. I'm also a new user of Ubuntu.
Hi. I updated the network card, from RTL8723BE to RTL8822BE, on my pc, that mount 2 os (windows 10 and ubuntu 20.04). I made this update to improve the speed of the connections. I haven't deleted the old card driver from both the OS. After put the new network card instead the older, i started windows and, of course, it had seen the new network card and automatically updated the driver. The speed has improved, because the new card have 5Ghz module, instead the older.
The problem is on Ubuntu: it see the correct new card ( /lshw ), but i don't know how the driver have to be installed on.
I tried to fix using the rtlwifi_new repository (https://github.com/rtlwifi-linux/rtlwifi_new), but i suspect that firstly i have to delete all old drivers of the older card, and after that i have to install this repo.
So, i tried to delete all old drivers, but after that i lost my wifi button to connect to wifi. Also after install this repo wifi button doesn't come back. Only after software update, the button come back, but the driver probably are not correct, because the connection is strongly unstable, also really close to the router wifi lost signal. I think the driver installed are the driver for the older card.
So, what can i do to fix this? The last idea i have is to reinstall ubuntu, but i'm sure there is another way to fix this problem.
