How to set up two routers in a pair?

Question

Computer networks

I have a Promsvyaz M-200A modem and a TP-Link TL-WR720N router. I have an M-200A connected to the network via PPPOE, then TP-Link is connected to it, and a server is connected to TP-Link:

the ports I need are immediately open

:

servers:

However, telnet reports that something is wrong here:

C:\Users\12222>telnet 192.168.0.106 80
Подключение к 192.168.0.106...Не удалось открыть подключение к этому узлу, на порт 80: Сбой подключения

C:\Users\12222>telnet 192.168.0.106 80
Подключение к 192.168.0.106...Не удалось открыть подключение к этому узлу, на порт 80: Сбой подключения

C:\Users\12222>telnet 192.168.1.2 80
Подключение к 192.168.1.2...Не удалось открыть подключение к этому узлу, на порт 80: Сбой подключения

C:\Users\12222>telnet 192.168.1.2 22
Подключение к 192.168.1.2...Не удалось открыть подключение к этому узлу, на порт 22: Сбой подключения

What could be the problem?

Answer 1

I connect from a laptop connected to TP-Link via Wi-Fi, the IP of the laptop inside the network is 192.168.0.100.

"Virtual server" on routers is port forwarding by NAT WAN -> LAN. You won't be able to test port forwarding from within the network. You need to connect to the external IP of your Promsvyaz or connect with a cable to the Promsvyaz LAN port and knock on TP-Link.
But, first of all, you need to check according to the recommendation of Artem in the comments