Recently moved ISP in UK from BT to Sky. Wasn't pleased to discover that Sky authenticate differently than any other UK ISP and that Orbi (or most other equipment) doesn't support the required protocol. This pretty much forces you to use their Sky Q Hub router for the internet connection (ER115, FTTC in my case). Saw a few posts on this so thought I'd share my setup as I've got things running well by simply placing the Orbi (router mode) in the Sky Hub's DMZ i.e. no NAT issues with LAN clients so far. Brief setup as follows (I have 1 RBR40, 2 RBS40, 1 RBS20 all wired):
1. Assign static IP to Orbi WAN interface in Sky hub
2. Set that IP as DMZ on Sky Hub and disable wireless
3. Connect Sky Hub to Orbi WAN port
3. Orbi in router mode and configure internet settings to not require a login / dynamically receive IP / automatically receive DNS servers
4. Set Orbi LAN with a different subnet IP. In my case the Sky Hub uses 192.168.0.X so I use 192.168.1.X on the Orbi LAN.
5. Configure any port forwards etc. etc.
One interesting point. When I set the Orbi's internet settings to not require a login I found settings at the bottom of the page for DHCP Option 60 and 61. Saw this in another post relating to RBK53 (I think). It may be that this will allow for replacement of the Sky Hub with a modem, however the issue of determining the connection string (username / password) to authenticate with Sky remains. I'v eheard they don't give this out to customers. Draytek have some guidance on determining this on their support pages. If I run into issues with the above, I might swap my DSL modem back in and try to figure it out.
