I have the same problem (computer on wifi fine, phone drops inexplicably). I also have one much more irritating problem... when I move from wifi to data zones, my internet stops working completely. The only way to solve this is to restart about 3 times. Sometimes even this doesn't work. I've tried switching wifi on and off, data on and off, data saving off, battery saving off, none of these make a difference. Subsequently find this phone a real pain.
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