Raltek RT5370 connection drops

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
30/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Stale
Tech stack
linux, raspberry-pi

Research direction

Start by reproducing the RT5370 connection drops on the listed Raspberry Pi 2 Model B systems and kernel 4.19.42-v7+, then collect relevant dmesg output and compare behavior with the RTL8188CUS dongle. Check whether the reported wpa_supplicant downgrade changes the result; done means a stable Wi-Fi connection without drops every 5–10 minutes.

Written by the indexing model from the issue text.

Description

Describe the bug
Got 3 Raspberry Pis running. All having Raltek RT5370 chipsets. Having unstable connection for a few weeks. I recognized because a webapplication is running which goes dark when it loses the network connection. So I recorded a 15s loop ping and sometimes I can't reach them.
After replacing 2 RT5370 with RTL8188CUS usb dongles connection isn't dropping anymore.

To reproduce
Use RT5370 chipset wifi dongle to connect

Expected behaviour
Stable wifi connection

Actual behaviour
Unstable wifi connnection. Dropping and reconnecting every 5-10 minutes.

System
raspinfo.txt

  • Which model of Raspberry Pi? 3xPi 2 Model B v1.1
  • Which OS and version (cat /etc/rpi-issue)?
    Raspberry Pi reference 2017-08-16
    Generated using pi-gen, https://github.com/RPi-Distro/pi-gen, aaaf0aea13f1e4f0375c31c87d7389299228598d, stage5
  • Which firmware version (vcgencmd version)?
    Mar 27 2019 15:45:53
    Copyright (c) 2012 Broadcom
    version 2e98b31d18547962e564bdf88e57b3df7085c29b (clean) (release) (start)
  • Which kernel version (uname -a)?
    4.19.42-v7+
    Logs
    If applicable, add the relevant output from dmesg or similar.

Additional context
On one box I downgraded wpasupplicant from version 2.6 to 2.4 without any effect.

Dominant language
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