Amcrest Forum

You can turn off the notifications for the time period that the it might get flipped on

Also, my solution is for your ISP IP address, not the individual cameras. If the individual cameras and changing their IPs, you need to change the settings for the cameras. Also yes, each camera use a separate port.

You need software that watches your IP address and updates a ddns that you point to. Look into noIP.com

Read the manual

Sounds like the original IP address you used has changed. She needs a static IP.

Sounds like you already checked this, but check Settings > Notifications > Amcrest View and make sure the Sounds toggle is checked. Do you get sounds for ANY notifications? Try rebooting your phone.

Is it switching back and forth from IR to Day TV? If so, you need to increase the delay after it goes to IR.

Don't bother with motion detection. I messed with it for over two weeks and couldn't get settings that worked. Finally gave up and turned it off.

Yes, it will be better because it won't be using wifi. I have mine hard wired with no issues

I don't fully understand your question. The problem is that you are losing signal to the other network? Why are you losing signal?