Orcon VDSL Attainable rate plummeted

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harleydaun

2 posts

Wannabe Geek

#223975 26-Oct-2017 19:54

Hi,

I'm with orcon and just noticed much lower speeds recently checked my NF4V and my attainable rate has gone down for Downstream for sure, and probably Upstream too.

Previously had 25Mbps downstream, now have 8Mbps downstream, only recent change is modem got moved to a different wall socket recently, also noticed the VDSL profile changed from 8b to 17a, which as far as I can tell should be a good thing right? Have a screenshot of my old xDSL stats from a post I made a few months back and a screenshot of current xDSL Stats. Is this a potential issue I should ring the tech people about, or is it more likely to be due to moving the modem. It doesn't make sense that the profile would go up but speeds would go down? Last time I restarted the profile was initially 8b again but after checking now its back to 17a.
According to the national broadband map my area has 15-60 Mbps available. So being at 8 seems like somethings wrong. Attenuation is about the same as in my old screenshot so I don't expect the changed port has any worse noise or anything which is what I thought may be the cause.

Any wisdom would be greatly appreciated.

Old

Current

chevrolux

4962 posts

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#1890973 26-Oct-2017 19:56

Hehehe... this looks like vectoring getting enabled and the router not supporting and therefore being kicked down to a rubbish profile.

@hio77 is the man for this one.

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Linux

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#1890974 26-Oct-2017 19:59

If the modem works in more than 1 telephone jack point then you need the telephone house wiring sorted and a dedicated xDSL jack point with master filter

You also don't mention if you have naked or clothed broadband

Linux

hio77

'That VDSL Cat'
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#1890976 26-Oct-2017 20:02

Things i note at a skim here.

-Downstream attenuation has increased (be it marginal)

-Error rates have heavily spiked in downstream

-SNR has pulled back, Likely because of above mentioned.

For this, you need to call your RSP and log a fault, for slow speed in this case.

They should at the very least be able to profile this in seconds like i have done.. Very likely line tests will indicate a Open Circuit or minor Earth fault on this.

chevrolux:

Hehehe... this looks like vectoring getting enabled and the router not supporting and therefore being kicked down to a rubbish profile.

hio77 is the man for this one.

Nope. only enabled in one area, looking at this line unrelated.

Linux: If the modem works in more than 1 telephone jack point then you need the telephone house wiring sorted and a dedicated xDSL jack point with master filter

You also don't mention if you have naked or clothed broadband

Linux

Will be standard connection only setup, Which is fine in 99% of times.

i'd agree a splitter would help juice the most out of this connection however.

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Any comments made are personal opinion and do not reflect directly on the position my current or past employers may have.

seoras

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#1902671 16-Nov-2017 11:43

Me too.

I'd been enjoying 30Mb/s down and 10Mb/s up for 2.5 years now in rural Cambridge but in the last week or so it's dropped to 10Mb/s down and 0.5Mb/s up.

I've also experienced really awful ping times and packet loss.

I opened a case with Orcon and then came here to see who else.

hio77

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#1902673 16-Nov-2017 11:52

seoras:

Me too.

I'd been enjoying 30Mb/s down and 10Mb/s up for 2.5 years now in rural Cambridge but in the last week or so it's dropped to 10Mb/s down and 0.5Mb/s up.

I've also experienced really awful ping times and packet loss.

I opened a case with Orcon and then came here to see who else.

ping and packetloss would go hand in hand with a drop in upstream, likely you are getting upstream congestion (on your constrained ammount of bandwidth)

Faults happen sometimes, copper isn't perfect.

#include <std_disclaimer>

Any comments made are personal opinion and do not reflect directly on the position my current or past employers may have.

seoras

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#1902707 16-Nov-2017 13:08

seoras:

Me too.

I'd been enjoying 30Mb/s down and 10Mb/s up for 2.5 years now in rural Cambridge but in the last week or so it's dropped to 10Mb/s down and 0.5Mb/s up.

I've also experienced really awful ping times and packet loss.

I opened a case with Orcon and then came here to see who else.

Fixed it.

You'd think someone who'd written Cisco's iOS WAN code, had patents in networking and even wrote some of the CCIE exam questions would check his wiring first.

It dawned on me after I posted here that the speed drop coincided with a power outage a few weeks ago.

I've got one of those battery backup units under my desk, which also has telephone surge protection, through which I pass the line coming in before going to the router.

That box wouldn't reset after the power came back and I had to dig it out of the corner it's wedged into to sort it out. I must have left one of the RJ11 or RJ45 connectors in an awkward position when I stuffed it back in.

Having disconnected everything, reconnected and restarted the router I'm now getting 35Mb/s down and 8 Mb/s up. Nice and quick once again. What a numpty... :)

hio77

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#1902723 16-Nov-2017 13:40

There we go!

good thing you checked, that could have been an easy fault fee!

#include <std_disclaimer>

Any comments made are personal opinion and do not reflect directly on the position my current or past employers may have.

seoras

101 posts

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#1902727 16-Nov-2017 13:48

seoras:

seoras:

Me too.

I'd been enjoying 30Mb/s down and 10Mb/s up for 2.5 years now in rural Cambridge but in the last week or so it's dropped to 10Mb/s down and 0.5Mb/s up.

I've also experienced really awful ping times and packet loss.

I opened a case with Orcon and then came here to see who else.

Fixed it.

You'd think someone who'd written Cisco's iOS WAN code, had patents in networking and even wrote some of the CCIE exam questions would check his wiring first.

:)

It dawned on me after I posted here that the speed drop coincided with a power outage a few weeks ago.

I've got one of those battery backup units under my desk, which also has telephone surge protection, through which I pass the line coming in before going to the router.

That box wouldn't reset after the power came back and I had to dig it out of the corner it's wedged into to sort it out. I must have left one of the RJ11 or RJ45 connectors in an awkward position when I stuffed it back in.

Having disconnected everything, reconnected and restarted the router I'm now getting 35Mb/s down and 8 Mb/s up. Nice and quick once again. What a numpty... :)

Nope. It's not fixed. 30 minutes later and it's back to it's painfully slow speeds.

Something very fishy going on here...