Now before someone wants to be clever: No, the problem is 100% unrelated to my router. My P8 Lite worked for multiple months and I could use my WiFi in different rooms of my house. My other devices like my Notebook still connect without any trouble. And yes I still tried multiple suggested fixes for my router.
Add your opinion! Huawei P8, GRA-L09, Display IPS TFT 1080 x 1920 px 5.20", Battery Li-Po 2680 mAh, RAM memory 3 GB, HiSilicon Kirin 930, Photo matrix 13 Mpx.DR7ez. 142 233 155 345 424 325 74 52 266