That's just it, speed is good all the time, regardless of time of day/night or day of the week. The problems started because of that maintenance period of downtime. I was litterally working online as it went down and happened to run a random speedtest about half hour before. Speed was solid 37.5/8 Mbps with full 38717 IP Profile and 15ms latency as it had been for the previous 8 months. Barely a few hours after it had come back up I checked it and the IP Profile was the same but throughput reduced to 32.5/8 Mbps and 26ms latency. The IP Profile dropped a few days later.

It's too much of a coincidence to be cross-talk, surely cross-talk issues wouldn't happen overnight either would they?

Performance is good but the speed is getting capped/uncapped/capped.

I did a daytime power down on the 2nd, did another one earlyer and the only change is the IP Profile has dropped inline with the reduced throughput. I ran the bt speedtester after the resync and it shows very low throughput which doesn't match up with the actual throughput I'm achieving on file downloads or speeedtest sites. As you can see from task manager in the second screen shot.

BT Speedtester
Task Manager - First two peaks are from speedtest sites last one bt speedtester.

It's just occured to me that it's exactly 10 days since the speed increased. Maybe coincidence maybe not.

Don't really know what I can do from here, short of haveing a bash at unlocking the stats. Think I might get in contact with BT again and see what they say about the recent developments.

As always I welcome any thoughts.
Cheers.

Apparantly there are two openreach vans parked by the cab and the FTTC one is open. I'm going to have a strole round shortly, hopefully they are still there.

When is there a need to open up the FTTC cab once it's installed?

You need to open the cab up if:

There is a fault.
You are adding additional cards (used the first 96 ports).
You are adding additional cables to connect to the old cab (usually when you add new cards as in 100 pairs)

If the cab has exceeded 96 workers you may get cross talk on the pairs towards your house. This will exist all the time the relevent modems are on, day or night. Most people will leave theirs on 24/7.

So one new customer may have caused your decrease. It is thought this is why BT estimates are below the rates people saw when first connected. Many people on here are expecting the drop to happen at some point for some people.

Thanks kitcat, appreciate that. It is the second two in this case..

I couldn't get away on friday but the engineers are there again today, and I just went and had a chat. They are installing a new card and interconnect cable. He mentioned the fiber cab takes up to 288 connections and there are currently about 90 in use.

He said if I'm not happy with the speed to contact my ISP. I mentioned cross-talk and he just looked at me blank. He confirmed the route my line takes and that it's 300M as the enginneers JDSU measured on install.

One other point of note is that the line is aluminium, not sure how much of a difference that would make though on this relatively short line.

So what do you think, cross-talk or my ISP palying around with caps?

Cheers.

anyone else notice its getting colder outside...