Right now your secondary router is running an entirely separate network than the first one. Depending on the feature set of your main router, you could create a subnet for your secondary router and put it in AP mode, so it doesn't create the second network and instead acts as an access point to the first one.
Right now your secondary router is running an entirely separate network than the first one. Depending on the feature set of your main router, you could create a subnet for your secondary router and put it in AP mode, so it doesn't create the second network and instead acts as an access point to the first one.