Spectrum Business installed a router between the modem and our router, claiming its required for a static IP.

We're using a Ubuiqiti Dream Machine router, but when we upgraded our internet speed, Spectrum installed a router between the cable modem and our router. Our internet still functions, but we do have some strange delays, and some SaaS providers are blaming our internet for connection issues.

Spectrum said this router was required to maintain a static IP address.

The modem plugs into the WAN port on their router, and then a cable runs from port1 on their router, to our router's WAN port.

Our router IP is 192.168.1.1, which I read was the default for theirs.

1. Does that wiring sound correct?
   I wasn't sure if their router should be plugged into our routers WAN port or just a regular port.
2. Is there a way to access their router's WebGUI from a PC connected to our router?
   I'm not sure the IP address of it. I want to at least disable it's wifi networks.

Thanks for the help.