Interesting as to what is going on with your line though. Something pretty dramatic, and highly variable sync speeds to give those results.

I forget the history before FTTC. IIRC it always was unstable?

In reply to a post by billford:

I don't think those values are valid for FTTC

They're not! I was talking about WBC not FTTC, as I warned in my aside.

Sorry if I confused you by hijacking this Fibre thread towards WBC, but it followed on from something said earlier.

In reply to a post by RobertoS:

I forget the history before FTTC. IIRC it always was unstable?

It did tend to wag around a bit, but most of it cleared up when I lost the copper between the cab and the exchange, so probably a noise source somewhere along the way. The line (probably) passed through/near a small industrial estate

FTTC started last August (only 2 other users in the cab), full speed up to early December then I got hit by the dreaded Xmas lights, and dropped to ~33500. Back up to nearly full speed again mid-January, that lasted about 2 weeks then back to mid-33's.

From then on I was geting 2-5 resyncs a week, but always around the same speed. Then about a week ago I had to have a BT engineer out... it was a cab fault, but while he was here he replaced a couple of ageing crimp connections that he didn't like the look of, and I promptly gained about 2Mbps of profile and it hasn't dropped since . Currently 35447Kbps.

Never had any indications of line problems though- quiet line test was fine etc. Just goes to show you need to look after all aspects of the line if you want good speeds!

The speeds I'm getting now are compatible with increased take-up, there's 20 or more users in the cab now.

Edited by billford (Wed 20-Apr-11 18:43:02)

No, the top sync you see is 40000Kbps. You can see higher sync rates, but this is on an unconfigured port.