@Rocky25 

I know a recent update on iPhone added a known network section where this network might now be listed.  Not sure if Android has a similar feature.  If you have already tried to reset the cameras for at least 30 seconds and then tried the setup again and it still fails try moving closer to the router or changing the router's channel on 2.4GHz.  You can even try enabling Guest networks and trying that way.  If those both fail let us know.