No surprirse!

I've been phoned back from BT total broadband. An agent said the line had been reset at the exchange. I asked had the NM been changed and she just repeated that the line had been reset at the exchange (I suspect both this morning and now the agents were in an Indian call centre). She wants feedback tomorrow on how the line is performing.

I've checked: the NM is unchanged - a few minutes ago it was exactly 15! The limits of 2000k and 448 for the line are unchanged and the speed was 1545 kbps. No change since this morning.

If the NM had been changed, would it have changed immediately on the stats? If there is no time lag on an NM change appearing in the adsl stats, I will phone back now and have another go at trying to get action.

There is a Request Reset system which she may mean they have used. That seems to take a few hours to get through to a result.

You may have to switch the router off and back on again to get any change to be reflected.

Before anyone says it could be done by just resyncing the router but to make the process easier for the OP a power off and on is the easiest method.

You may have to switch the router off and back on again to get any change to be reflected.

That's a thought.

In theory it shouldn't be necessary but there have been reports in the past of needing to do that.

Thanks for the quick reply. I will wait till tomorrow morning before phoning as I suspected there might be a delay for changes to go through the system. The agent from the call centre really only seemed to know that something had been done at the exchange; she couldn't tell what was involved in the resetting of the line at the exchange.

I have just restarted the router and the computer and now have the internet back.

The NM is showing as 14.9.

Does this mean that I will need to restart the router again tomorrow to check the NM if it is still showing about 15 NM before a restart? I have been trying to avoid restarts of the router since Mr Saffron pointed out that this may be leading BT's equipment to think there are service breaks which require a higher NM to increase the chances of a stable system.

Leave it running overnight and if nothing is much different in the morning try just one then.

If that still gives about 15dB then time to send your line details to MrSaffron .

I would leave alone for the day now, and suffer current speeds. Try again in the morning and then don't bother calling them just email me - you've suffered enough now.

Usually find it happens within an hour or so of the reset going in, and plenty of times have seen it happen without the user rebooting the ADSL hardware at their end.

Used to do a couple of these a day, but done to just one or two a week now. Do moan at ISP managment when I meet them, but generally the tech people we meet for all the ISP's/wholesalers are happy for us to put the odd thing through.