Question Satelite router keeps losing internet

[DrCoxie]

So I have set up a main router which recieves internet from the ISP and then pulled network cables to two other houses too far away to connect to the main wifi. Ive terminated these ethernetconnnections into routers, they are identical and are otherwise set up the same. One works without problem and the other drops connection to the internet about once a day and the only way to get it back, if at all, is to restart the main router. I dont get why two satelite routers set up the same way dont both work fine, one of them shows no problems but the other does. Is this an IP conflict? Do I need static IPs?

 

[helpstar]

Maybe the cable has a problem or the router is defective

Firmware is the same on the two connected routers to the other houses?

 

[DrCoxie]

I figured out what the issue was eventually: the wall mounted outlet was defective, there was recent renovation so it might have gotten damaged somehow. Annoying issue to find but at least it caused me to properly set up and streamline the whole network. Thanks for the answer though, seems like youre the only one who wanted to help^^