iPhone 7/Plus iPhone 7 plus not connecting to network

[paieye]

Earlier this week, I replaced my faithful 5S with a 7 plus. Local Genius Bar did the transfer of material from old to new for me. However, the 7 plus has difficulty in connecting to our wifi. This MacBook Air has no difficulty, and the wifi appears to be working perfectly. The 7 plus was able to connect to it yesterday, but only intermittently, and today does not connect at all. I have tried Forget This Network, and a hard reboot, but the 7 plus is still not connecting. What else can I try ?

 

[paieye]

Earlier this week, I replaced my faithful 5S with a 7 plus. Local Genius Bar did the transfer of material from old to new for me. However, the 7 plus has difficulty in connecting to our wifi. This MacBook Air has no difficulty, and the wifi appears to be working perfectly. The 7 plus was able to connect to it yesterday, but only intermittently, and today does not connect at all. I have tried Forget This Network, and a hard reboot, but the 7 plus is still not connecting. What else can I try ?

It now appears that I can get back online by using Forget This Network. However, if I then put the screen to sleep by pressing the On/Off switch, the 7 plus drops the line. What am I doing wrong ?