Sky FTTP with UniFi Dream Machine worked straight out the box - what am I missing?

[danieloverton84]

I've been a cable broadband user since Diamond Cable days, more recently running Virgin Media in modem mode with a UniFi Dream Machine for 2+ years. Rising costs and the introduction of FTTP in my street last month has seen me move to Sky FTTP. I searched up using the UDM straight into the ONT, saw lots of posts with suggested settings and many more saying you have to double NAT with the Sky Hub.

Sky installed my ONT this afternoon, I planned to set up the UDM this evening but VM had other plans. 40 minutes after the engineer left I got a text from Sky that my connection was active. About the same time my wife reported the net was down - VM had cut me off. In a panic to get her back online for work I plugged the ONT into the UDM and rebooted the UDM. It restarted and it just works. 

The WAN settings are set to auto and I haven't changed anything from the VM connection. What am I missing? Is it going to all go horribly wrong at some point?

Note: I didn't allow the engineer to set up the Sky hub - lied and said it was out for delivery today. UDM running the latest console and network firmware releases. 

[Chrisee]

@danieloverton84 there have beenissues with the Ubquiti units not connecting to Sky connections duevto an annomaly with the way the router'scfirmware deals with Sky's use of an IP4 address sharing system called MAP-T there are indications Ubquiti are fixing that (see this thred).

However there have been reports that Sky turn on MAP-T support a day or so after install so dont be too surprised if it stops working until the new firmware is applied by Ubquiti

It is worth testing the Sky hub as you will need to use that if you ever need support with line issues as it runs Sky's diagnostic systems.

[danieloverton84]

Thanks, that's the bit I was wondering whether it would go wrong in a couple of days. I didn't want the hub connecting in case it was the trigger to the other end to activate the MAP-T thing. 

Thanks for the link to that thread, v8.6.9 which the thread references as the RC version is now the latest official release firmware so no longer an RC. That's the version I'm on so fingers crossed. 

[Mr+Le+Bon]

Out of interest and ahead of me deciding if I move back to Sky or not on FTTP did you have any issues in the last month on the UDM?

[danieloverton84]

Not a single issue. It's been fantastic. 

I get a warning a couple of times a week that the connection has restarted multiple times and I should restart the modem if it continues. But the connection doesn't seem to drop in reality and the timeline shows green across the board even when the warning is there. 

Getting away from VM has been the best thing I've done. The VM connection dropped daily if not more. 

[danieloverton84]

I should have added. I'm running UniFi OS 4.1.13 Network 9.0.114