Hi I recently bought Samsung Galaxy S7 Edge from Verizon. Wi-Fi on it worked perfectly for the first few days, then I noticed I had great connection but I couldn't do things like downloading apps for watching YouTube videos, all I could do was use Google. I had a great signal and when I used to speed test it said my speed was great. I recently noticed that when I took out my SIM card from the tray Wi-Fi work well again but when I put it back in and work for about 3 minutes then goes back to the bad WiFi I have a net gear C63 hundred router Wi-Fi works perfectly on all other devices please help thank you