I live in Panama, is there a protocol problem/fix for connecting to different type of router and WiFi? Or, am I SOL 
I can’t connect and actually I just want to record via the SD card using an external battery, can I do that without using the app, appreciate any help, thanks!
All you need is 2.4 Ghz Wifi. Most routers have it but it may be turned off. 2.4 and 5.0 Ghz may have different SSID.
You need to connect your phone or tablet to the 2.4 Ghz SSID before adding a camera.
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Thank you Angus! I want to record remotely without wifi but it looks like I still have to set up the camera through the app and hence I need wifi. Can I just insert the SD card and it will automatically record?
If you need the cameras to work in a location that does not have permanent WiFi available then you have probably chosen the wrong brand. At the very least they need to connect to the Internet whenever they are rebooted.
Angus is correct that WiFi standards are global, but these are not really offline cameras (Wyze Cam Outdoor partially excepted).