I have two routers at home, the first one is connected to the computer and the second one is connect

Hello! There are two ways to connect a router to another router:

1) "Superior-Superior" Relationship - Ensure that the first three sets of IP addresses of the LAN ports of the two routers are different, for example, if the higher-level router is, then the lower-level router can be;

Then connect a network cable from the LAN port of the "upper" router to the WAN port of the lower-level router, and confirm that the lower-level router uses the "dynamic IP (sometimes called DHCP)" mode to access the Internet.

2) "Same level" relationship method - ensure that the first three groups of IP addresses of the LAN ports of the two routers are the same, and the last group is not the same, for example, one is, then the other can be, and then connect to any LAN port of the two routers of the same level with a network cable, and must strictly confirm that the newly added router of the same level should turn off the DHCP function.

Change the IP of the second one, and connect the line to the output of the second one.

If you're a router bridge, you need to configure it exactly right, and it supports bridging. If it's not a heads-up line to the living room, log in with your phone and check the settings, sent and accepted packets, if the latter is 0, you are not connected to the Internet. Please check the check settings again.

Unplug it, restart it, or refresh your settings.

How are your two routers connected???