Wifi settings crash when trying to open available wifi connections

[Lauwer]

I have a Samsung Galaxy S7 and since the last Android upgrade I can't go to the list with available wifi connections anymore in settings. The moment I touch 'Wi-Fi', the settings crash and I get the message "Settings has stopped. Open app again"
I've reset the phone to factory settings but this didn't help.

When I click the Wifi icon from the dropdown screen at the top of the phone's screen, I am able to connect to open connections, but every time I touch the name of a secure wifi connection, the settings crash again and I get the same error message as mentioned above. The secure wifi connections that were already saved in my phone, do still work and connect automatically.
I hope someone can help me with this problem...

 

[B. Diddy]

If Smart Switch doesn't work, you could try using Odin, although this is more involved: http://forums.androidcentral.com/am...w-flash-stock-rom-via-odin-new-interface.html

 

[Electr0]

Breaking News - Possible Fix Found

This morning I may have accidentally discovered a fix, by pure chance.

I turned my phone on and a message came up, along the lines of:
"You have over 200 Wifi access points saved. Would you like to delete the the oldest 259 to improve you Wifi experience?"

I pressed yes, and low and behold, my Wifi settings crash issue seems to be resolved. My Wifi also turns on an off a lot faster that is has since I've been experiencing the settings crash issue.

I've done a quick search and to do this manually it seems the following ways should work:

• Settings -> Lock screen and security -> Other security settings ->Clear credentials
• General management -> Reset -> Reset network settings
• Clear the wpa_supplicant.conf file if your phone is rooted (Guide)
• Download a Third Party Wifi connection manager, navigate to 'Known Networks' and then Clear All (no specific app noted)

* Sources: Android Central Thread, Stack Exchange Thread

I hope this can solve our issue!
@Woland1 @Lauwer @Alx75
Please try out this solution and report back if it works.

 

[B. Diddy]

Excellent detective work! It sure seems odd that this would be enough to cause a problem, but if you demonstrated improvement after paring down that list, that sounds like the solution!

 

[Zingapuro]

Hi guys,

Just wanted to thank Electr0, insight seems to have solved my problem. Just to clarify, I'm running Android 7.1.1, OxygenOS 4.1.3 on OnePlus3, and this single step solved my problem:

Settings -> Backup & Reset -> Reset Network Settings

Unfortunately, I lost all my saved WiFi passwords -- but it's worth it to stop that annoying Settings crash (sometimes it would happen 10 times in a row before I could finally access my WiFi...)

So yeah -- thanks Electr0