(I really don’t know if someone besides me is saying that about the fans, so you may not know what they say, because I just invented that, never mind let’s just continue the article). I hope I’m not right here, but we will see. But you know what they say: “when there is a fan there are problems or at least noise”. For now I can only hear it when the UDM start and doing some initial checks. Fan inside UDM – There is a fan somewhere inside UniFi Dream Machine.Well as of now with UDM your only option is to do that call your ISP, because MAC address clone/spoofing is not possible. No possibility to do a MAC address clone – If your Internet Service Provider like mine is locking your MAC address and when you change your router you either have to call them or you have to clone the MAC address from your old router.But I believe they will fix this with the future firmware updates that will come. Not perfect initial setup – I had several issues on the last step, so I have to start all over again 3 times and last one worked after power cycling the UDM.No Wi-Fi 6 support – so this device is not so future proof that I wanted to be.No PoE ports – There are no PoE ports, at least one would be great, but no luck here.