Problem with port forwarding.

[adzi]

Hello! I'm new here and I dont really know if im posting in the right place. Basically I have 2 routers at home one of which I use as an extender. The one I'm using as an extender my pc is connected to it. I need to start a server from my pc and do I need to open the port on the extender router and the main router or just the main router?
Thank you!

 

[Tech9]

You have one device acting as Router - the one connected to your ISP provider. Port forwarding has to be done there. There is no routing on an Extender.