Created attachment 275825 [details]
dmesg and images of the last test

Hey, 

I am a regular linux user and i have bought a few weeks a new computer (Asus S410UN) that comes with the new realtek 8822be wireless chipset.

i upgraded my kernel for the version 4.17-rc1 but the problem remains. When i boot the machine the system detects the wifi but he only works for a few sec (5/10 sec max). Then the wifi loses connection from the network that he was connected and in the end (20/30 sec) the Available networks disappear and the network manager stops working.Also, during this 20/30 sec process the operating system seems to be limited and slower

To mitigate this problem i have done:

/etc/modprobe.d/r8822be.conf -> options r8822be aspm=0

When i do this, the wifi card works fine, the operation system works smooth and i can reboot the system without problem!This works in ubuntu, linux mint, and other distribution that i have tested due to this problem.

NOTE:

While testing the new stable version of the bionic beaver i detected something interesting. The wifi connection or the network manager only switches off when i open the browser. I used the bionic beaver (2018-04-25 22:47) bootable USB and i have made this log book for you:

image 1 - boot;
image 2 - wifi connection;
image 3, 4 and 5 - ping (www.google.com; www.ubuntu.com) without problems;
image 6 - opening firefox (waiting 10 sec before trying again ping).
image 7 - In the end, neither ping or firefox are receiving packages;
image 8 - wifi loses connection and the signal is lost;
image 9 - wifi network vanish.

Attached are the images and dmesg log of the beginning of the process and at the end.

Kindly regards
paag