Constant popup toast notifications "Can't connect to 20:32:33:36:58:4D"

[Android Central Question]

All day every day for the past few weeks I've been getting popup notifications on the bottom of my screen (toast notifications) that state

"Can't connect to 20:32:33:36:58:4D"

and I can't for the life of me figure out where they are coming from. They happen about twice per hour.

The numbers are a Bluetooth MAC address, which according to a lookup website I found is for a device manufactured by "Shenzhen Bilian Electronic Co, LTD". I found an app that tracks the toast notifications, which tells me they are coming from the system Settings app. I ​found an app that tells me the Bluetooth MAC address of every device that is paired or has ever been paired with my phone, and none of them match.

I've reset my Network Settings. The only other thing I can think of is going through my apps and trying to uninstall them one by one to see if it solved the problem. How can I figure out where these are coming from?

Running Android 12/OneUI 4.1 on an S21 Ultra

 

[mustang7757]

Re: Constant popup toast notifications "Can't connect to 20:32:33:36:58:4D"

Try toast source from play store or Nice cache in Galaxy store .

I'll leave a Link to register so you can communicate here as a guest account you can only post questions but can't reply

https://forums.androidcentral.com/ask-question/409154-join-android-central-community.html

 

[hereisalex]

Re: Constant popup toast notifications "Can't connect to 20:32:33:36:58:4D"

Thanks, I actually did that already. It says it's coming from the Settings app

 

[mustang7757]

Re: Constant popup toast notifications "Can't connect to 20:32:33:36:58:4D"

Thanks, I actually did that already. It says it's coming from the Settings app

Hi, welcome to AC!
Try resetting network, this resets all WiFi mobile data and Bluetooth devices, in settings>general management>reset>reset network

 

[mustang7757]

[Moved this to s21 Forum]

 

[hereisalex]

Re: Constant popup toast notifications "Can't connect to 20:32:33:36:58:4D"

Hi, thank you! I have already reset my network settings, as mentioned in the original post.

 

[mustang7757]

Re: Constant popup toast notifications "Can't connect to 20:32:33:36:58:4D"

Hi, thank you! I have already reset my network settings, as mentioned in the original post.

Sorry missed that ,reset settings next in same settings

 

[hereisalex]

Re: Constant popup toast notifications "Can't connect to 20:32:33:36:58:4D"

That's okay. I just did the settings reset and I'm still getting the notification!

 

[mustang7757]

Re: Constant popup toast notifications "Can't connect to 20:32:33:36:58:4D"

That's okay. I just did the settings reset and I'm still getting the notification!

Wow even the settings reset didn't clear this up , what about safe mode?

 

[hereisalex]

Re: Constant popup toast notifications "Can't connect to 20:32:33:36:58:4D"

I think I may have finally found the culprit. I uninstalled my dash cam app Nexar and I haven't had any more popups since then. I'm hoping they're gone for good