I bought my M7650 (EU) Ver: 1.2 2 years ago and i was never able to use it properly. The download speed is always around 3mbps. my operator is Vodafone. the same SIM card with a different router is able to produce a 15/20 mbps. the other router worth 10 Euros while the m7650 worth around 150 Euros. I tried to call customer service but no body answers. i tried all the tips you give but nothing works. its on 5ghz only on 4g+.