I did read from another forum that other ZTE Valet users are also having some issues with Wi-Fi connection. Not sure if this is hardware or software issue. But if it's software, an update could possibly fix it. I suggest you contact ZTE to make a report. That way, they will know that there is an issue and they can make a fix for it. Good luck!
I hope there is a fix with the Wi-Fi problem smartphone zte valet,
I am sure of this situation, because all the other devices at home like tablet, laptot, working very good with
a good connection where the ZTE Valet does not.