Connected to wifi but no internet

[boybi]

Did you use 192.168.1.xx format for both routers? You can try changing the router2 IP set to 192.168.2.xx and router3 to 192.168.3.xx to avoid conflicts. So when you set the WAN gateway in router2 and router3, you can set it to 192.168.1.xx.

Just remember to write the new address on the router's body (masking tape, post-it notes, etc) so you don't forget in the future.

Thanks GH, I did what you suggested and it worked!

But I find it weird that before this, some of my devices have internet while others don't.