Why does my Wifi reconnect fail after my router replacement?

[AC Question]

Wifi reconnect fails after router replacement

previous hardware with new Cisco DPC3941T. Ever since, my cel phone (HTC One M7 running Android 5.0.2) will not auto-reconnect after a timeout. Under the previous config, there was never an issue.


So let's start at the beginning --


1) I just chose to "Forget" my home network on my cell.


2) I scan for new networks & choose the 2.4 OR the 5 segment. Enter password, Connect first time.


3) Run variety of tasks just fine, let the phone go to sleep.


4a) Pick up the phone after just a few minutes, still connected. Good.


4b) Pick up the phone after more than just a few minutes (?), the reconnect attempt errors out.


5) The only way to reconnect is to repeat steps (1) & (2) above.


Any ideas?

 

[B. Diddy]

Re: Wifi reconnect fails after router replacement

Welcome to Android Central! Go to Settings>Wi-fi, tap Menu>Advanced, and turn off Wi-fi Optimization, and Avoid Weak Connections (if you see them). Also, let Wi-fi stay on while asleep.

If that doesn't help, make sure the router's firmware is fully up to date.