I am on Sky (UK) and have been usign the VR900 as a modem and router for some time. I need to improve the wireless coverage in the house and decided to go for Eero but have been unable to get the VR900 into pure modem mode and am left with double NAT routing.

I've hard reset given that some posters state the default mode is modem only but it contineus to assign an IP to the eero, creating double NAT. The eero manages every other device and I've disabled wifi on the VR900 so it's only the eero plugged into it.

Is there anyway to make the VR900 behave as a pure router?

Thanks