will do that mate...
do they check sync by connecting their device to the modem or the socket directly?
any other checks i should make sure that the engineer does?
plz give me suggestions friends...
They will connect their tester to the socket directly, so I'd get him to check it in (up to) 3 places:
1. at the current data extension socket. If that's good (eg 70+Mbps, based on your distance from the cabinet) then the problem could be a faulty modem or router. If it's low then...
2. at the master socket. If it's good here but low at the extension socket then there's a problem with the wiring between the two. If it's low here, then...
3. at the test socket behind the master socket faceplate and interstitial VDSL plate. If it's good here but low in the front port of the master socket then it could be some sort of fault in the interstitial VDSL plate or the master socket (unlikely, but could be a dry solder joint). If it's low here then the problem is in the cable between the master socket and the street cabinet.
If he gets a good reading with his tester in the data extension socket then plug the modem back in and wait for the DSL light to come on. I don't know if the BTOR engineer has a tester that he can connect to the LAN1 port of this to check the speed, but I'd be a bit surprised if he doesn't. If he doesn't he should be able to talk to the NMC and get them to look at what speed the modem has sync-ed at.
If you have a Mac, you can plug that into the modem LAN1 port and configure it to bring up the PPPoE connection, then run a speed test right on the back of the modem (which eliminates the router and other kit from being the possible cause). You can probably do the same with a Windows PC but I've never tried.
If the modem has sync-ed at a good speed (70+Mbps) when checked in one of these ways, then the problem must be your router, PC or cables in between.
That's the theory, but of course there are all sorts of weird problems that can make the diagnosis more tricky. Good luck!