Arch Linux

cocoliso_

Member

Registered: 2021-02-03

Posts: 1

WiFi suddenly drops

Hello!

After some kernel updates, I have noticed that wifi connection drops.
When reboot everything turns normal until drops again.

Doing a lspci | grep Network find this

01:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter

When wifi disconnects, this appears in dmesg -w:

[  416.741100] pci_bus 0000:02: Allocating resources
[  416.741108] pcieport 0000:00:1c.1: bridge window [mem 0x00100000-0x000fffff] to [bus 02] add_size 200000 add_align 100000
[  416.741134] pcieport 0000:00:1c.0: BAR 15: no space for [mem size 0x00200000 64bit pref]
[  416.741137] pcieport 0000:00:1c.0: BAR 15: failed to assign [mem size 0x00200000 64bit pref]
[  416.741143] pcieport 0000:00:1c.1: BAR 14: no space for [mem size 0x00200000]
[  416.741146] pcieport 0000:00:1c.1: BAR 14: failed to assign [mem size 0x00200000]
[  416.741153] pcieport 0000:00:1c.1: BAR 14: no space for [mem size 0x00200000]
[  416.741156] pcieport 0000:00:1c.1: BAR 14: failed to assign [mem size 0x00200000]
[  416.741164] pcieport 0000:00:1c.0: BAR 15: no space for [mem size 0x00200000 64bit pref]
[  416.741167] pcieport 0000:00:1c.0: BAR 15: failed to assign [mem size 0x00200000 64bit pref]

Over and over.
Another messages such as rtlwifi:  AP off try to reconnect now

When works, I type rfkill: soft and hard is unlocked. But when the signal is gone, typing again rfkill, only bluetooth appears.

I've tried a downgrade. Actually with kernel 5.5-zen1. Zen kernels worked better for my laptop than stock linux kernel.
But still have usually this issue.

Also tried this:

sudo modprobe -r rtl8723be
sudo modprobe rtl8723be ant_sel=1

sudo -i
echo "options rtl8723be ant_sel=1"  >  /etc/modprobe.d/rtl8723be.conf
exit

ant_sel=2 gived no response, so I've chose ant_sel=1

If I am so newbie please sorry, I've never had problems like this and always find some solution at wiki.
But this seems to be so difficult to find, or difficult to understand how to proceed to solve it.

Many, so many thanks!.-

Last edited by cocoliso_ (2021-02-03 04:38:20)