ADSL speeds drop after a while until modem reboot.

Forums › One New Zealand (including Vodafone, WxC, Farmside) › ADSL speeds drop after a while until modem reboot.

backfiah

219 posts

Master Geek

#146947 3-Jun-2014 18:12

New to this whole ADSL thing, so forgive me if this is something obvious. We've got a Vodafone Station that will give me generally around 350-400+ KB/s download and 80ish KB/s upload most of the time. However, after 24-36 hours, the speed will drop down to something closer to 300ish KB/s download and 20-30(!) KB/s upload. When I reboot the router, it goes completely back to normal.

Took these two speedtests not long ago which shows the behaviour:

Before reboot: https://www.speedtest.net/my-result/3539767247
After reboot: https://www.speedtest.net/my-result/3539771034

The vodafone station's config page also shows the changes under it's connection details (from 0.26Mb/s or so to 1.02Mb/s upload).

Cheers

PeterReader

6019 posts

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Geekzone

Lifetime subscriber

#1058732 3-Jun-2014 18:12

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.

RunningMan

8961 posts

Uber Geek

#1058748 3-Jun-2014 18:16

Can you post your modem line stats - DSL sync rate, attenuation, noise margin. Should be in the modem's status page.

Oh, and welcome to Geekzone!

JoshWright

398 posts

Ultimate Geek

ID Verified

Trusted

#1058757 3-Jun-2014 18:37

RunningMan: Can you post your modem line stats - DSL sync rate, attenuation, noise margin. Should be in the modem's status page.

Oh, and welcome to Geekzone!

These silly Vodafone Stations don't provide the line stats to the user, I have one and it's such a pain! Maybe Johnr could look find them? I had to contact Vodafone to get a copy of my line stats.

backfiah

219 posts

Master Geek

#1058758 3-Jun-2014 18:38

RunningMan: Can you post your modem line stats - DSL sync rate, attenuation, noise margin. Should be in the modem's status page.

Oh, and welcome to Geekzone!

Thanks :) Been a lurker for a while, about time I made an account.

The modem page is pretty barebone unfortunately, can't find any useful details.

RunningMan

8961 posts

Uber Geek

#1058762 3-Jun-2014 18:49

JoshWright:

These silly Vodafone Stations don't provide the line stats to the user, I have one and it's such a pain! Maybe Johnr could look find them? I had to contact Vodafone to get a copy of my line stats.

Well that makes that a little difficult then ;-)

Does the OP have another modem available for testing?

Coil

6614 posts

Uber Geek
Inactive user

#1058764 3-Jun-2014 18:50

Sounds like the noise margins are creeping up or the modem resyncs at a lower rate for stability.

backfiah

219 posts

Master Geek

#1058770 3-Jun-2014 19:04

TimA: Sounds like the noise margins are creeping up or the modem resyncs at a lower rate for stability.

That sounds like a hard one to fix. And no spare modem, sorry.

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Coil

6614 posts

Uber Geek
Inactive user

#1058858 3-Jun-2014 20:55

backfiah:
TimA: Sounds like the noise margins are creeping up or the modem resyncs at a lower rate for stability.

That sounds like a hard one to fix. And no spare modem, sorry.

Would you mind sending me your account details and ill take a look at the line to be sure?

Cheers

backfiah

219 posts

Master Geek

#1061424 8-Jun-2014 19:22

Just to update anyone who sees this in the future or has the same problem - TimA updated my firmware to 5.4.8.1.160.6.35 and it seems perfectly fine ever since :-)

Big thanks to TimaA and everyone else who contributed to this thread.

jlittle

188 posts

Master Geek

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Subscriber

#1062691 10-Jun-2014 15:59

backfiah: Just to update anyone who sees this in the future or has the same problem - TimA updated my firmware to 5.4.8.1.160.6.35 and it seems perfectly fine ever since :-).

Thank you, I just saw it! My family has what I was told is a Vodafone station though it calls itself "Vodafone DSL Router", and it's unstable at times. I called Vodafone service and after a 45 minute and the rep insisted it was a wifi reception problem (despite my desktop being wired, and failing to connect to anything, including the modem/router's page itself) so I had to try moving the cordless (I turned it off), changing the channel (already did that), moving wireless devices closer, etc. My subsequent attempts to call Vodafone have failed.

I would be very interested in a firmware upgrade if one is available. The box arrived already configured, but was a little 'soiled' (dust and splashes of something unidentified) so clearly wasn't new.

The troubleshooting box diagnostics screen says:

Product name    EchoLife HG556a
Software version    V100R001C12B037
Serial number    307041008018040

TIA for any response.

backfiah

219 posts

Master Geek

#1218212 20-Jan-2015 12:03

Sorry to revive an old thread, but our ADSL download speed has dropped again. The vodafone station reports it at 2.4Mb/s (compared to usually around 4Mb/s) and a speedtest gives around 250-270KB/s. Restarted modem several times. Could someone from Vodafone take a look? Not keen to wait forever on the phone.