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wifu

Since I've tried any method I could find online, I decided to get help here.

I shut off wifi optimization, rebootet my phone, my wifi is certificated and the wifi also gets slower un safe mode. The first three minutes after I reboot my phone is the only moment when I can connect to any wifi. The strange thing is, that this started just about a week or so after I've bought the phone. Meaning that I had no problems at the beginning and could install all my apps I had on my previous android device.
But since the problem still exists in safe mode, I can't understand why it is the case with the wifi.

I'm glad for every help.
Thank you

Uliwooly

Keep us updated.

wifu

I will.
Wifi is working for over 30minutes now.

Uliwooly

That app might do the trick

wifu

I think so too.
I'll visit the phone shop too, just to get sure about whats was going on my phone.
Thanks for your advice to download the speedtest! Otherwise I would not have downloaded that other app

I'll give an update in case that the app won't help my wifi anymore. And about the information about my phone I will (hopefully) get at the phone shop.

Thank you very much!

Uliwooly

Anytime

wifu

It doesn't work anymore...
The app doesn't help and gets errors all the time. The ping should be okay, allthough I can' test it on this device because I can't use wifi anymore.
On another device wifi is working without any problems.
Now a new problem occured, that I can't use my mobile internet for too long as well. It says that I don't have a connection, after several minutes, although the symbol says something different.