Yup, Thomson box ticked, typo in model number (it is TG589vn v3) apologies. IP is correct, can telnet from the same machine using the the command specified in your last response.
Is there any way I can see how far it gets? i.e logging in, or quite what it is seeing as being returned? Event Log just shows 'Timeout while retrieving stats', then 'No stats received'
There are only two places where those event log entries can occur. One is in collecting the basic stats, and you've checked that command. The other (in the case of Thomson modems only) is in collecting the G.INP data. The command for this is
xdsl info ginp=yes. Could you try this command by telnet please?
If this command also works, and there isn't a noticeable delay in responding to it, or to the other command you tried, then I'll really have to put my thinking cap on.