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Ultimate Geek


# 143355 11-Apr-2014 22:11
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Hi Guy

I was noticing a lot of packet loss when performing network tests over Xbox Live so I decided to try my Telecom modem to see if there were a difference. Not only was there a difference, the Telecom modem out performed the Vodafone modem in nearly every aspect.

The test conditions were my laptop plugged into the modem and my Xbox One plugged into the modem. Vodafone VDSL connection. I done 5 tests on the Xbox One and took  the results to work out a average.  Also resluts from the modems DSL pages and Speedtest.net. Here is my results. (Edit: The results formatting is screwed up from the website ads, sorry about that)


Telecom - Technicolor TG589vn V2

                              Test 1    Test 2    Test 3    Test 4     Test 5

Down                          23.5      21.47     18.69     22.21     23.88      Average - 21.95  High 23.88  Low 18.69
Up                               7.11      6            8.8         6.74       5.45        Average - 6.82    High 8.8      Low 2.98
Packetloss Down %         0           1            0            0            1             Average - 0.4      High 1         Low 0
Packetloss up  %   12         0            2            7            0             Average - 4.2      High 12       Low 0
MTU 1480
MS 167                                                                                        Average - 167

DSL Sync up 10,342 / down 28,832

Speedtest.net 14ms Down 26.96 Up 9.80



Vofadone - HG659

Down                     19.90      19.17     20.28      17.77     21.56      Average - 19.73  High 21.56 Low 19.17
Up                          7.77        7.77      5.90         7.62       7.56       Average - 7.32    High 7.77   Low 5.90
Packetloss Down   0
Packetloss Up       12            12          18           12          12          Average - 13.2    High 18    Low 12
MTU                      1452
MS                        168           168       169          169        169        Average - 169

DSL Sync up 10,342 / down 24,752

Speedtest.net 14ms Down 22.80 Up 9.66


Quite a big difference in DSL sync rate between the modems. Any ideas on why that could be? Also, I don't get any packet loss on other platforms including PS4 nor on my laptop.




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  # 1023661 11-Apr-2014 22:11
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Hello... Our robot found some keywords in your post, so here is an automated reply with some important things to note regarding broadband speeds.

 



 

If you are posting regarding DSL speeds please check that

 



 

- you have reset your modem and router

 


 

- your PC (or other PCs in your LAN) is not downloading large files when you are testing

 

- you are not being throttled by your ISP due to going over the monthly cap

 


 

- your tests are always done on an ethernet connection to the router - do not use wireless for testing

 


 

- you read this topic and follow the instructions there.

 



 

Make sure you provide information for other users to help you. If you have not already done it, please EDIT your post and add this now:

 



 

- Your ISP and plan

 


 

- Type of connection (ADSL, ADSL2, VDSL)

 


 

- Your modem DSL stats (do not worry about posting Speedtest, we need sync rate, attenuation and noise margin)

 


 

- Your general location (or street)

 


 

- If you are rural or urban

 


 

- If you know your connection is to an exchange, cabinet or conklin

 


 

- If your connection is to a ULL or wholesale service

 


 

- If you have done an isolation test as per the link above

 



 

Most of the problems with speed are likely to be related to internal wiring issues. Read this discussion to find out more about this. Your ISP is not intentionally slowing you down today (unless you are on a managed plan). Also if this is the school holidays it's likely you will notice slower than usual speed due to more users online.

 



 

A master splitter is required for VDSL2 and in most cases will improve speeds on DSL connections. Regular disconnections can be a monitored alarm or a set top box trying to connect. If there's an alarm connected to your line even if you don't have an alarm contract it may still try to connect so it's worth checking.

 



 

I recommend you read these two blog posts:

 



 

- Is your premises phone wiring impacting your broadband performance? (very technical)

 


 

- Are you receiving a substandard ULL ADSL2+ connection from your ISP?




I am the Geekzone Robot and I am here to help. I am from the Internet. I do not interact. Do not expect other replies from me.



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  # 1023741 12-Apr-2014 00:20
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The MTU ( Maximum Transmission Unit size) is the largest packet size an modem will accept before fragmenting the unit into multiple packets  
Telecom - Technicolor TG589vn V2 reports an MTU of 1480
Vofadone - HG659 reports an MTU of 1452

That alone will make a difference 
change both modems MTU to 1500 and see what the difference is then

 
 
 
 


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  # 1023867 12-Apr-2014 10:38
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speedtest results mean very little - it's DSL sync stats that are of far more importance.

As explained above incorrectly set MTU can make a big difference in throughput. Most ISP's use the pretty much stock standard 1492, however some (incl Telecom) support 1500 with suitable hardware that supports 1500 byte MTU over PPPoA/PPPoE


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