[BUG] Some WiFi chips stop working after idle and require a reboot/reset of WiFi

[ananjaser1211]

Describe the bug after few hours in idle, some WiFi chips will stop working, and the only way to get it back up is toggling on/off the wifi, sometimes that does not work and a reboot is needed.

I have finally faced his bug on my phone and managed to take a log. lets see if i will be able to fix it

My WiFi chip : Murata

If you face this issue too, please download Phone info app from the play store and attach a screenshot of hardware WiFi chip part. make sure your wifi is enabled. if its blank, it should be Semico

Smartphone (please complete the following information):

• S7 And S7 Edge
• Edit bug reported on Note7 FE with murata chip

WiFiLog.log

Key points to focus on

[99278.992657] [4: wpa_supplicant: 4632] CFG80211-TRACE) __wl_cfg80211_scan : START SCAN
[99278.992704] [4: wpa_supplicant: 4632] DHD Runtime PM Disabled 
[99278.992737] [4: wpa_supplicant: 4632] dhd_prot_ioctl : bus is down. we have nothing to do - bus state: 2, sent hang: 1
[99278.992766] [4: wpa_supplicant: 4632] dhd_wl_ioctl: WLC_IOCTL: cmd: 49, ret = -1
[99278.992787] [4: wpa_supplicant: 4632] CFG80211-INFO2) wl_do_escan : error (-1)
[99278.992806] [4: wpa_supplicant: 4632] CFG80211-INFO2) wl_cfg80211_scan : scan error (-11)

[Georgian-D]

Hi anajaser1211, You are doing a great job with this rooms. You have my appreciation.

This bug was observed from time to time also by me:

[FiestaLake]

Same Murata chip. Bug confirmed.