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[Busa]

After two nights of ridiculously high error rates recorded in DSLStats my connection speed has dropped from 48Mbps to 40Mbps and INP has increased from 3 to 8:

Average error rates for 13 Jun 2016

CRC erors per hour:  45389 Down,  0.30 Up
FEC erors per hour:  74501500 Down,  0 Up
HEC erors per hour:  21695 Down,  0 Up
ES per hour:  738 Down,  0.30 Up
SES per hour:  0 Down,  0 Up

Average error rates for 14 Jun 2016

CRC erors per hour:  14769 Down,  0.19 Up
FEC erors per hour:  24465064 Down,  75.5 Up
HEC erors per hour:  6770 Down,  0 Up
ES per hour:  236 Down,  40.1 Up
SES per hour:  5.70 Down,  0 Up

I've only had this unit running for a few days and after initially giving very good results something seems very wrong as I wasn't seeing this on my SBG3300-N.

Does anyone have any experience of this behaviour and do I perhaps need to change any settings in the router. Currently running the latest firmware 1.00(AAKL.14)C0.

Any help would be much appreciated.

[daveesh1]

I am trying one of these with same Firmware version as your good self. while having around a 1MB drop on both US and DS I have a resync around lunch time and have had 12901 FEC, 839CRC and 113 ES. I did read on hear that some people thought there was an issue with this version of Firmware

[skyeci]

Not that it helps but my 8324 is on 1.00 aakl.14 c0_20160408 currently gets around 400-600es ds per 24 hours since being on fastpath after the loss of g.inp.

[Busa]

Main issue for me is I've actually lost 8Mbps and my interleaving level had trebled. today I seem to be getting constant connection drops too see attached.

If it is a firmware issue rather than a setting issue any idea what is the most stable version at present?

Strange that it's happening on this and not on my SBG3300-N which I believe has the same chipset.

[skyeci]

wow, doesn't look good, was the modem new out of interest or 2nd hand - wondering if its faulty ??  not sure if it makes any difference but I only use mine in bridge mode rather than all in one,

here's mine on 31 days uptime on the lastest version. Sky 65/20

are you uploading to mydslwebstats?

[Busa]

Bought it off a well know auction site but tbh it looks pretty much brand new, was fully boxed and still had cellophane on it.

This could actually be a line issue timed to perfection with me swapping the router mind. No real errors at all this evening but as said I've lost 8Mbps, interleaving is 3xs worse and my ping has increased to levels I've never seen in my 4 years on FTTC. It wouldn't surprise me as for the last few days my PlusNet profile has been getting stuck too, on two consecutive days I've had to call them to get it manually changed.

[Dave974]

I did read on hear that some people thought there was an issue with this version of Firmware

It may have been my post your referring too? my router is the VMG8324-B10A.
If I use version 14 firmware my FEC is up over a million but only after it's been turned on for more than 1 hour.

I dropped mine back to version 7 and it's fine now. so for me at least version 14 is a no go

[daveesh1]

Cheers yeah that was the one. New I had read a post about it. Will leave mine and see how it runs overnight and tomorrow then decided what I will do. Must admit that the billion880AXL just used to run on my line

[Busa]

@daveesh1

How are the errors looking today?

Mine ran fine for the first 24 hours and actually increased my connection rate on the downstream while dropping around 0.5Mbps on the upstream before this happened.

I'm still seeing approx 6.5 million FEC's per minute reported in DSLStats but hardly any CRC's etc. again at present.

[Busa]

Well after my speed dropped yet again by a further 1Mbps, so far dropping from 48Mbps to now 39Mbps I've rolled back the firmware to 1.00(AAKL.7)C0.

So far I'm seeing very low error levels but tonight will tell. on 1.00(AAKL.14)C0 I was seeing huge amounts of CRC's, HEC's, ES, SES and FEC's where at over 800,000 per minute!

My interleaving has also risen again now up from the original level of 850 to 2500 to now over 2800 

Fingers crossed it stays like this and DLM sorts my line out as said my connection speed is now around 39Mbps and the Max Attainable is 55Mbps!

[daveesh1]

@Busa Its hard for me to tell as all I keep getting out of DSL stats log is unable to login to Modem/router this is even after I power cycled the modem this morning there is no other telnet session open to the router so why it is doing this god only knows but there is info in Mydslstats. So if we go off the info I have around 50ES per hour 600FEC per Min and 30CRC per min. All I can say I so far I am not impressed with this router and are really considering going back to my Billion...

[Busa]

Strange DSLStats is working fine here.

[NewtronStar]

This 2nd hand Billion 8800nl is working like a dream with increase of sync and attainable and the most important part as stable as a HG612.

I did read a post by Chysalis that the VMG8924-B10A seemed to increased the errored second rate by 300% or 3X more than a HG612 and the Billion 8800nl only increased the ES error rate by 30% or 0.3X

A question to Busa how many errored seconds did you see with the SBG3300-N in 24 hours and how many with the VMG8924-B10A

[Busa]

I used to average 2 to 4 E/S per hour with the SBG3300-N, take a look at my original post above for the E/S on the VMG8924-B10A.

Since switching to the 1.00(AAKL.7)C0 all is looking good again on the error front, well apart from interleaving at 2800 when it was around 850 and my download speed some 9Mbps less now.

I really shouldn't tempt fate though! 

[NewtronStar]

Well if we take 738 errored seconds in one hour 738 X 24 hours = 17712 that is well above the DLM threshold for a speed profile of 2880 ES over 24 hours and the reason the DLM took action on your line with the VMG8924-B10A with up to date firmware.

The SBG3300-N would show 93 errored seconds in 24 hours to me I can't understand how a new firmware with the 8924-B10a could cause so much extra errored seconds 

edit 738 X 23 hours = 16974