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Can someone analyse these stats?

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Taken from my BT Home Hub 5 with 6.2.2.6 Software.

There seems to be a few errors here. I've been finding that the speeds have been dropping during the day and you may have seen that I switched the hub off briefly this morning.

I recently changed ISP and found I was getting a much similar problem except that the speed never climbed up again.

Can someone analyse these stats for me and tell me where to start looking for improvements?

Thanks again.


-------------------------------------------------------------
Link Information
Uptime: 0 days, 1:31:02

Modulation: G.992.1 annex A

Bandwidth (Up/Down) [kbps/kbps]: 448 / 3,552

Data Transferred (Sent/Received) [MB/MB]: 7.15 / 33.97

Output Power (Up/Down) [dBm]: 12.0 / 18.5

Line Attenuation (Up/Down) [dB]: 31.5 / 59.0

SN Margin (Up/Down) [dB]: 14.0 / 8.5

Vendor ID (Local/Remote): TMMB / P

Loss of Framing (Local/Remote): 0 / 0

Loss of Signal (Local/Remote): 1 / 0

Loss of Power (Local/Remote): 0 / 0

Loss of Link (Remote): 0

Error Seconds (Local/Remote): 1 / 0

FEC Errors (Up/Down): 0 / 132,536

CRC Errors (Up/Down): 0 / 162

HEC Errors (Up/Down): 0 / 112
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That sync rate should give you a "profile" of 3000Mb/s, which means an actual download speed of 2500 plus, assuming no congestion at your exchange or ISP, and assuming no throttling by your ISP.

The Homehub is not a good router though, and if you can borrow/try a better one such as the Speedtouch585v6, you might get a bit higher speed. But then you might not, as these things are very try-it-and-see and can't be forecast accurately.

But you're doing about right for your attenuation.
 
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Your problem is noise on your line causing high attenuation.

Unscrewing all the BT sockets and removing the Ring Wire from Terminal 3 (usually orange/white, and not required by modern phones) should show some improvement.
This wire acts as an aerial and causes RF interference.

HTH

Mo
 
(usually orange/white, and not required by modern phones) should show some improvement.
This wire acts as an aerial and causes RF interference.

HTH

Mo
I agree about disconnecting the ring wire from the master to increase the signal/noise ratio on the line.

Adsl filters made for the UK market should contain their own ring capacitor so if a phone doesn't ring after disconnecting the ring wire, the ADSL filter it is plugged into doesn't comply with BT's minimum specification.

The ring wire itself isnt passed through by UK ADSL filters so it shouldn't be necessary to disconnect it at the slaves, unlesss you are using sub standard filters.


I would suggest running the BT speedtest to check your IP profile (if you are on an IPStream based service) http://speedtester.bt.com
 
VERY high line noise, and a lot of FEC errors, more than 5 times what I was getting, until they changed the DSLAM at the exchange.
S/N margin is low as well.
 
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Thanks again for all the comments.

I have the BT Hub plugged into an ASDL faceplate mounted on my main BT socket. I've disconnected the orange wire connected to the faceplate and just have the Blue/White & White/Blue wires connected.

However, there is a small junction box in the Utility Room next to this ASDL socket. When I open it it has 4 sets of wires (White/Blue, Blue/White, Orange, Orange/White) meeting all the other household telephone wiring. There must be at least 10 phone sockets in the house.

Even though I've done this disconnection through to the faceplate, I guess that this means that the extra noise and errors are caused by the cable leading off to this junction box?

Does this mean that the BT Hub is still getting noise from all the other sockets and I should still go ahead and disconnect all the orange/white wires from all 10+ telephone sockets?
 
With reference to the BT Speedtester, here are the results from 15:40 today.

--------------------------------------------------------------------
Test1 comprises of Best Effort Test: -provides background information.
IP profile for your line is - 2500 kbps
DSL connection rate: 448 kbps(UP-STREAM) 3488 kbps(DOWN-STREAM)
Actual IP throughput achieved during the test was - 2259 kbps

If you wish to discuss these results please contact your ISP.

If you are experiencing problems with specific applications, servers or websites please contact your ISP for assistance.

Your test has completed please close this window to exit the performance tester.
---------------------------------------------------------------------
 
If there are phones all over the house then, yes, that will affect your line noise a lot.
If there is a single pair of wires going from the main socket to this junction box then remove those ( form the master socket end; but make a drawing of the connections first, so you know which wire goes where for later.
Wire acts as an antenna, the more of it there is, the more radio interference it picks up and transmits down your line.
My voice line is currently broken (Again!!! come on BT !! twice in 10 days !!) and it is picking up Radio 5 Live, you can hear it clearly when you pick up the phone.

I dont mind it being broken too much, as soon as it broke, my internet speed went turbo!!!
 
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