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Thread ID: 108355 2010-03-25 07:29:00 Thomson TG585 ADSL2+ modem p5t5r85nry (10658) Press F1
Post ID Timestamp Content User
869897 2010-03-28 05:23:00 Here is some information from the Thomson Interface. It states it is synching? at 945/17.778 but speedtest.com tests show that it is not achieving those figures. Download speed is around 1.0Mbps compared to around 6.5Mbps with my old Nokia M1122 ADSL1 modem

Link Information
Uptime: 0 days, 0:05:22
DSL Type: G.992.5 annex A
Bandwidth (Up/Down) [kbps/kbps]: 945 / 17.778
Data Transferred (Sent/Received) [kB/kB]: 0,00 / 0,00

Information
Product Name: TG585v7
Serial Number:
Software Release: 7.4.2.7
Configuration
Service Name: Routed PPPoA on 0/100 (modified by user)
Time Since Power-on: 0 days, 0:07:26
p5t5r85nry (10658)
869898 2010-03-28 06:02:00 Here is some information from the Thomson Interface. It states it is synching? at 945/17.778 but speedtest.com tests show that it is not achieving those figures. Download speed is around 1.0Mbps compared to around 6.5Mbps with my old Nokia M1122 ADSL1 modem

Link Information
Uptime: 0 days, 0:05:22
DSL Type: G.992.5 annex A
Bandwidth (Up/Down) [kbps/kbps]: 945 / 17.778
Data Transferred (Sent/Received) [kB/kB]: 0,00 / 0,00

Information
Product Name: TG585v7
Serial Number:
Software Release: 7.4.2.7
Configuration
Service Name: Routed PPPoA on 0/100 (modified by user)
Time Since Power-on: 0 days, 0:07:26

If it is of any use, my modem's details are as per below.

DSL Connection

ptime: 6 days, 9:20:29
Bandwidth (Up/Down) [kbps/kbps]: 945 / 16.318
Data Transferred (Sent/Received) [kB/kB]: 0,00 / 2,00
Internet Connection OK
Internet


Type: PPPoA
Uptime: 6 days, 9:20:06
IP Address: xxxxxxxx
Data Transferred (Sent/Received) [MB/GB]: 210,01 / 4,40

Speedtest results: www.speedtest.net (http://www.speedtest.net)


Could you confirm that you are doing your speed tests while your PC/laptop is plugged into the router, rather than using wireless?
somebody (208)
869899 2010-03-31 09:31:00 OK I have solved my problem. The problem is the CAT5 cable that I have running from the modem to my computer. It is a CAT5 cable which is quite old and is about 15m long. The strange thing is that it works OK with my old Nokia M1122 modem, but for some reason does not work properly with the Thomson TG585v7 modem with ADSL2+

Any reason why it was able to carry 7Mbps from the Nokia but only 1.0Mbps from the Thomson?

I connected my laptop to the Thomson with the CAT5e cable that came with the Thomson modem and it gets around 14Mbps. Thats twice as fast as the Nokia. So ADSL2+ is an improvement for me.

The wireless with the Thomson works well too delivering around 8Mbps

So, what cable should I buy to replace my old 15m long CAT5 cable? Does the length matter?

Do I need CAT5e? Does ADSL2+ require better cable?

Thanks
p5t5r85nry (10658)
869900 2010-03-31 10:29:00 You are talking two different things here - the cable from the modem to your laptop is an ethernet connection which can run up to 100Mb/s (or even maybe 1000Mb/s) and you can go 100metres with it.
The cable from your modem to the phone jack on the wall is the ADSL2+ part and is simply an extension of the phone line back to the exchange - the longer it is the slower your line rate.
decibel (11645)
869901 2010-03-31 10:35:00 You are talking two different things here - the cable from the modem to your laptop is an ethernet connection which can run up to 100Mb/s (or even maybe 1000Mb/s) and you can go 100metres with it.
The cable from your modem to the phone jack on the wall is the ADSL2+ part and is simply an extension of the phone line back to the exchange - the longer it is the slower your line rate.

OK I accept what you say. But why do I get lousy results using the 15metre long CAT5 cable but I get great results using the half metre long CAT5e cable? And why is the 15metre long cable just fine with the Nokia but lousy with the Thomson?

Everything else is the same. Same cable from wallsocket to modem. Same laptop. The only difference is the ethernet cable.
p5t5r85nry (10658)
869902 2010-03-31 11:05:00 Very strange - my guess is that the Nokia modem had 100Mb/s ports which only use two of the four pairs.
Maybe the Thomson uses 1000Mb/s ports which use all four pairs and one of pairs 3 or 4 is faulty.

Wild guess though -
decibel (11645)
869903 2010-04-01 02:13:00 Very strange - my guess is that the Nokia modem had 100Mb/s ports which only use two of the four pairs.
Maybe the Thomson uses 1000Mb/s ports which use all four pairs and one of pairs 3 or 4 is faulty.

Wild guess though -

I went down to Dicks Smiths today and purchased a new 10metre CAT6 ethernet cable, and lo and behold I now get around 14Mbps download. So it was definitely a faulty ethernet cable that was causing the poor performance.

Many thanks for all the advice.
p5t5r85nry (10658)
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