Finally, after literally years of waiting, I have now got connection to 21st Century internet speeds and am no longer playing catch up. The Lionesses brought back the silverware, but I've got my fibre and it feels good...
Now for the questions.
I have had equipment installed that I am not familiar with, an "ONT" connected to a "Gateway". The installers came before I got back from work, so I couldn't ask the relevant questions, but there is no documentation that I could find to get into the admin pages to fiddle with the settings as required (and they appear to need fiddling with, as I have a strict NAT on my XBOX), also, if the gateway is the modem, I'll need to access the interface to setup the DMZ.
1. The R2 requires a modem, is this the ONT? There is an ethernet cable coming from it and going into the gateway, but I couldn't see if the gateway was a modem/router or standalone router.
2. Does the R2 need to be setup again afresh if I connect to the new ISP? Just plugging in the cable from the ONT didn't give any internet connection, so either I've missed something, need to reboot, or need the fibre equivalent of a modem.
The ONT is an Adtran SDX 621i, the gateway is an 834-5. The ISP is Wildanet in Cornwall.