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KN-2011 Omni DSL - Poor VDSL Upload Speed


classicwow
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I got a KN-2011 Omni DSL device running version 3.8.4.

I tried to use it on Vodafone VDSL line, auto settings finds correct download speed but upload speed is stuck at around 1000kbps which should be around 6000kbps.

Vodafone H300S modem - router uses different SNR settings for download and upload, KN-2011 is using a fixed SNR setting for both.

I tried to lower SNR to 7 on KN-2011 but it fails to establish a DSL connection. When i set it SNR 9 or above line speed drops too much.

Is there a way to fix this issue?

Please check the images below.

vodafone-h300s.jpg

kn-2011-omni-dsl.jpg

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13 hours ago, classicwow said:

I got a KN-2011 Omni DSL device running version 3.8.4.

I tried to use it on Vodafone VDSL line, auto settings finds correct download speed but upload speed is stuck at around 1000kbps which should be around 6000kbps.

Vodafone H300S modem - router uses different SNR settings for download and upload, KN-2011 is using a fixed SNR setting for both.

I tried to lower SNR to 7 on KN-2011 but it fails to establish a DSL connection. When i set it SNR 9 or above line speed drops too much.

Is there a way to fix this issue?

Please check the images below.

vodafone-h300s.jpg

kn-2011-omni-dsl.jpg

Hi, from the screenshots you show, it does not seem that your line is regular since you are connected in VDSL2, which should start from at least 30m, but I see that you have a lot of noise in the line that surely lowers the carrier beyond the minimum edictal of 30mega , how far are you from the road connection? (FTTC)
As for the low upload, try to disable (Uncheck) the UPBO function at -> "DSL settings" -> "Additional line settings" on Keenetic then turn off and on, and double check the upload.

 

 

 

 

Giornali.txt

Edited by PasKy
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1 hour ago, classicwow said:

Not far, 50 meters max.

Disabled UPBO but nothing changed.

Thing is if line quality was bad that would effect Vodafone's router too but it is working without a problem...

... for only 50Mt, not even their modem can give you the 30 megs, which at that distance in the absence of crosstalk and disturbances related to the distance that in your case do not exist you should have, before fiddling with modems, you should (advice) check the cables and junctions of your telephone system, remove any filters applied which are only for the ADSL and ADSL2 versions not for VDSL-VDSL2, remove any oxidation at the junctions using a simple deoxidizing spray for electrical contacts, if the home and equipped with an anti-theft then you will have to call a technician for a small modification to the connected anti-theft system, because although it is true that the MediaTek chipsets do not excel in performance on difficult lines (Which is not your case given the short distance from the cabinet!), they come with many software variables to get a good compromise.
In the meantime I'll post you an image of my VDSL configuration which is working correctly.

cat.png

Edited by PasKy
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My contract with Vodafone is 24Mbps download and 6Mbps upload and their device is delivering these speeds. Line's max capacity is irrelevant at this point.

It is obvious that if there was something wrong with the line their modem / router also shouldn't work.

My guess is there's incompatibility with the ISP's devices and KN-2011. I tried all combinations and your suggestion above all of them failed. I even tried the alpha firmware.

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7 hours ago, classicwow said:

My contract with Vodafone is 24Mbps download and 6Mbps upload and their device is delivering these speeds. Line's max capacity is irrelevant at this point.

It is obvious that if there was something wrong with the line their modem / router also shouldn't work.

My guess is there's incompatibility with the ISP's devices and KN-2011. I tried all combinations and your suggestion above all of them failed. I even tried the alpha firmware.

... there are no "A" and "B" series chipsets, all must for obvious reasons comply with the International rules of compliance with the IEE, ITU and other bodies responsible for specifications, which are universally adopted. It is true that your modem connects according to your contractual basis with the ISP, but often if not always the ISPs also implement Remote Management on their modems, a mechanism that allows your ISP to remotely control your modem. If the Keenetic modem gives you a line drop with a noise of 46DBI, in normal conditions on traditional ADSL +, I would have told you that nothing can be done because you are about 5km from the control unit, but at 50 meters something is wrong. for the right way in your system, even if their modem goes according to the contractual stipulations, who knows what "Magheggio" (alchemy!) they did to give you the correct values. Which if you have time to waste and a minimum of knowledge of applicable values you can have fun trying to get the same results.

Edited by PasKy
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mahmut, bende de buna benzer sorun olmuştu önceleri. upbo-kl0 dmt olduğu fw isteyip deneyebilirsin belki ondandır. Bende var fakat eski sürüm olduğu için cli açılmayabilir. image.png.67c1e45b75f192f076fa1f4575ce23de.png

 

Edited by Ahmed Ensar
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On 8/30/2022 at 11:46 AM, Ahmed Ensar said:

mahmut, bende de buna benzer sorun olmuştu önceleri. upbo-kl0 dmt olduğu fw isteyip deneyebilirsin belki ondandır. Bende var fakat eski sürüm olduğu için cli açılmayabilir. image.png.67c1e45b75f192f076fa1f4575ce23de.png

 

He reported that he returned the device because he could not set it up to the same speed as the modem provided by the ISP.

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