I had a similiar problam with apple devices, imac , 2 phones and 2 tablets. Sometimes they would wifi connect to one wifi channel and not the other. Sometimes not connect to either. You can reset the devices and Huawei router a million times and it will not make any difference. Once Huawei router starts not connecting devices , reset or not, it will continue not connecting. I solved the problam by dumping the huawei router and bought a Dlink python. No more problam..
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