VDSL - High CRC and FEC

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Valcor

30 posts

Geek
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Topic # 201299 12-Aug-2016 12:28

Hi guys,

I will start off by saying that I haven't really noticed any major problems with my connections, I don't get drop outs, everything downloads and streams like it should however I am noticing all these error corrections... Also I'm located in Wellington and my ping to the spark servers is around 20ms.

Should I be concerned by these numbers even though the internet seems to be running fine?

I'm just wondering if I should get this looked into:

Should I be concerned by these numbers even though the internet seems to be running fine?

PeterReader

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Reply # 1610639 12-Aug-2016 12:28

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:

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.

Jase2985

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Reply # 1610712 12-Aug-2016 14:14

thats 16crc errors per minute on average, which i dont think is too bad.

if its not causing dropouts and i see your connections is pretty good at 52/11 i wouldnt be worried

hio77

'That VDSL Cat'
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Spark

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Reply # 1610828 12-Aug-2016 16:59

in terms of how DLM looks at your line, Your errors are around about slightly too high for DLM-1.

If you do want to try to improve that to get your latency down, the next thing to look at would be how your installation was done.

Is a master filter installed already?

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