Hi,

It seems that the signal strength in your remote location is too weak to build up a network connection. 

Considering it is related to the network infrastructure of ISP, I'm afraid that there is not much what we can do. 

For the signal strength on your iPhone, you may contact Apple tech support to get some suggestions. 

Good day. 

Radomir wrote

I have trouble connecting to 4g/3g network in remote area.

I tested with my phone (iPhone 6) and I have internet connection (a slow one) but with same sim card inserted in router I get no connection at all.

I also tested router where I know connection is good with the same simcard and it works fine, it just doesn't work in my remote location.

 

Is there something I can do to improve signal strength, and how is it possible that 4 year old iPhone has better reception than this device?

Hi,

Sorry for that, while I did read your post. 

Considering the signal strength is affected a lot by the actual network environment, cause it is a remote area, you can adjust the location of the router. Move it to an open area without interference, like concrete walls, other electrical devices. 

Good day.