BT Speedtest

Tweek_1984 · 2 Jul 2007 at 21:42

Here are the results of the speedtest with our main computer connected to the bt home hub:

Test1 comprises of Best Effort Test: -provides background information.
IP profile for your line is - 3500 kbps
DSL connection rate: 448 kbps(UP-STREAM) 7360 kbps(DOWN-STREAM)
Actual IP throughput achieved during the test was - 514 kbps

Tute · 15 Jul 2007 at 21:36

For the FOURTH time in about 7 weeks, i've been stuffed back on 512K.

Whenever I ring BT and get it sorted out (after an hour on the phone with them blaming my equipment) it will stay at about 7MBit for 1-2 weeks, then it simply goes back to 512K again.

Like tonight, was surfing, router crashed totally. Rebooted it, wouldn't sync. Checked connections all over the house. All fine. So I waited. After about 20 minutes, the router synced and all was back up.

Speedtest reveals i'm back on 512K.

Test1 comprises of Best Effort Test: -provides background information.
IP profile for your line is - 500 kbps
DSL connection rate: 448 kbps(UP-STREAM) 608 kbps(DOWN-STREAM)
Actual IP throughput achieved during the test was - 412 kbps

Why does this happen to me? No LLU, no option to switch. I really don't want to have to go through all the **** with another Indian call-centre monkey.

Please someone help me before I go mad. :mad:

tolien · 15 Jul 2007 at 21:41

Because of the rate you're connect at:

DSL connection rate: 448 kbps(UP-STREAM) 608 kbps(DOWN-STREAM)

The nearest profile step to 608kbps is 512kbps.

The way to fix it is to stop whatever's causing your connection to screw up.

Tute · 15 Jul 2007 at 21:44

tolien said:
Because of the rate you're connect at:

The nearest profile step to 608kbps is 512kbps.

The way to fix it is to stop whatever's causing your connection to screw up.

And er... how do I find that out?

Any idea as to what it could be?

And why do I get 7MBit sometimes if something's screwing my connection up?

Trifid · 15 Jul 2007 at 21:46

Do you have a filter on everything in the house including the sky box?

Tried the test socket? http://www.dslzoneuk.co.uk/socket.php?type=html

Tried swapping filters around?

tolien · 15 Jul 2007 at 21:47

Tute said:
And er... how do I find that out?

Crystal ball?

Any idea as to what it could be?

Anything that's reducing your SNR margin a lot - interference, line fault that varies with the weather/time of day, the list is endless. If your router crashes, there's the possibility it's the problem.
As Trifid suggested, try connecting at the master socket with no extensions (use the test socket if they're hardwired).

And why do I get 7MBit sometimes if something's screwing my connection up?

Because it isn't screwing your connection up the rest of the time.

Tute · 15 Jul 2007 at 21:52

Trifid said:
Do you have a filter on everything in the house including the sky box?

Tried the test socket? http://www.dslzoneuk.co.uk/socket.php?type=html

Tried swapping filters around?

Yeah, checked and changed all filters the last time this happened.

It's always plugged into the test socket as the front plate on the BT box is broken and if screwed in, won't sync at all.

Would posting my noise ratios help?

Tute · 15 Jul 2007 at 21:54

tolien said:
Crystal ball?

I seem to have misplaced mine. You got one spare?

tolien · 15 Jul 2007 at 21:56

Tute said:
I seem to have misplaced mine. You got one spare?

At the shop. It wouldn't show me the winning lottery numbers

Would posting my noise ratios help?

Not really, unless it's abnormally high. If it's dropping ~6.5Mbps, your SNR margin's dropping a lot. Before and after attenuation might be useful though.

Tute · 15 Jul 2007 at 21:59

I don't have any before stats.

This is now:

Line Mode G.dmt Line State Show Time
Latency Type Interleave Line Up Time 00:00:57:21
Line Coding Trellis On Line Up Count 7

Statistics Downstream Upstream
Line Rate 608 448
Noise Margin 18.7 dB 15.0 dB
Line Attenuation 11.5 dB 7.5 dB
Output Power 12.4 dBm 15.8 dBm

I have wondered if there's a fault somewhere, would getting an engineer round help at all?

Oh, and I think I have a magic 8-ball somewhere for emergencies.

Trifid · 15 Jul 2007 at 22:01

Tute said:
would getting an engineer round help at all?

Not unless you want to risk having to pay for his time with out doing what I said above.

Tute · 15 Jul 2007 at 22:12

Trifid said:
Not unless you want to risk having to pay for his time with out doing what I said above.

I've disconnected everything except the connection to the router. I've swapped the filter between the master socket and the router for a brand new one (was in sealed box).

Now connecting at 1.5MBit with 500K profile.

Trifid · 15 Jul 2007 at 22:29

Was there a thunderstorm today?

Tute · 15 Jul 2007 at 22:31

Not here, just very heavy rain.