OK, further to my previous message I've gone to
http://192.168.100.1/
and get the following readings:
Downstream Receive Power Level : -9.91 dBmv
Downstream SNR : 31.00 dB
Upstream Transmit Power Level : 55.00 dBmv
According to my reading of one of the stickies on this forum, these numbers are outside of the acceptable range.
Can someone confirm that and give me an NTL phone number of someone who can help (for some reason I can't access the NTL web page showing the support phone numbers).
If it makes a difference, I'm in Glasgow.