Not Happy! G.INP = Higher Latency + Lower Sync Speeds
I've checked your line and from what I can see you don't have G.INP enabled.
Your current profile is "0.128M-80M Downstream, Interleaving Low - 0.128M-20M Upstream, Interleaving On" so the interleaving will be why your seeing higher pings rather then G.INP.
At the same time the sync speed hasn't dropped enough for our suppliers to investigate I'm afraid.
Your current profile is "0.128M-80M Downstream, Interleaving Low - 0.128M-20M Upstream, Interleaving On" so the interleaving will be why your seeing higher pings rather then G.INP.
At the same time the sync speed hasn't dropped enough for our suppliers to investigate I'm afraid.
You are making a very rash assumption that the same reason is causing everyone's loss of speed.
Some will be g.inp, some will be exchange contention, some will be physical line issues, some will be cross talk, ...
Some will be g.inp, some will be exchange contention, some will be physical line issues, some will be cross talk, ...
Quote from: fp So what continues to cause the problems if it is not G.INP related?
That's not what Matthew said
The cabinet may be G.inp capable but G.inp is not enabled for the line as the modem (eg ECI) does not support it. Under these conditions, the line goes to a "backup" condition that causes a drop in sync speed and higher ping values rather than using the "old" system.
Just to update you on this situation.
I obtained an unlocked HG612 modem.
Put this on the Plusnet circuit here in the office, we also have Zen fibre here.
Initially there was no change at all, but after reading various forums, some people are having to wait for G.INP to be enabled after connecting a compatible modem. So I waited.
Yesterday at about 4:40am, my connection drops and resyncs, then low and behold G.INP is shown as enabled in the stats, sync speeds are back to normal and latency is also back to normal.
HOWEVER!
Even though the sync speeds are at 79999 down and 20000 up. I am getting no more than 62Mbps down and 17.5Mbps up on speed tests!
Pings are fine at between 13ms to 16ms to bbc.co.uk.
Now here is the concerning thing.
The Zen fibre line we also have here uses a standard ECI modem. Connected to the same G.INP enabled street cab.
While latency still remains an issue on the Zen circuit, the speeds are better than the Plusnet circuit even though G.INP is now enabled and working. Even though the ECI modem on the Zen circuit has synced at 71858 down and 19999 up!?!?!?
So something is certainly going on and I am determined to find out what it is.
Failing that, the Plusnet line will be moved over to Zen.
Here are stats from the HG612 on the Plusnet circuit and speedtest.
Plusnet Speed Test
Plusnet HG612 Stats
I obtained an unlocked HG612 modem.
Put this on the Plusnet circuit here in the office, we also have Zen fibre here.
Initially there was no change at all, but after reading various forums, some people are having to wait for G.INP to be enabled after connecting a compatible modem. So I waited.
Yesterday at about 4:40am, my connection drops and resyncs, then low and behold G.INP is shown as enabled in the stats, sync speeds are back to normal and latency is also back to normal.
HOWEVER!
Even though the sync speeds are at 79999 down and 20000 up. I am getting no more than 62Mbps down and 17.5Mbps up on speed tests!
Pings are fine at between 13ms to 16ms to bbc.co.uk.
Now here is the concerning thing.
The Zen fibre line we also have here uses a standard ECI modem. Connected to the same G.INP enabled street cab.
While latency still remains an issue on the Zen circuit, the speeds are better than the Plusnet circuit even though G.INP is now enabled and working. Even though the ECI modem on the Zen circuit has synced at 71858 down and 19999 up!?!?!?
So something is certainly going on and I am determined to find out what it is.
Failing that, the Plusnet line will be moved over to Zen.
Here are stats from the HG612 on the Plusnet circuit and speedtest.
Plusnet Speed Test
Plusnet HG612 Stats
# xdslcmd info --pbParams
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 1
Last initialization procedure status: 0
Max: Upstream rate = 34743 Kbps, Downstream rate = 97268 Kbps
Bearer: 0, Upstream rate = 20000 Kbps, Downstream rate = 79999 Kbps
Bearer: 1, Upstream rate = 0 Kbps, Downstream rate = 0 Kbps
Discovery Phase (Initial) Band Plan
US: (7,32) (871,1205) (1972,2782)
DS: (33,859) (1216,1961) (2793,3959)
Medley Phase (Final) Band Plan
US: (7,32) (871,1205) (1972,2782)
DS: (33,859) (1216,1961) (2793,3959)
VDSL Port Details Upstream Downstream
Attainable Net Data Rate: 34743 kbps 97268 kbps
Actual Aggregate Tx Power: - 3.7 dBm 13.1 dBm
====================================================================================
VDSL Band Status U0 U1 U2 U3 U4 D1 D2 D3
Line Attenuation(dB): 2.0 9.8 13.9 N/A N/A 6.3 13.6 20.0
Signal Attenuation(dB): 2.0 9.1 13.3 N/A N/A 7.0 13.5 20.0
SNR Margin(dB): 15.6 15.7 15.6 N/A N/A 10.7 10.7 10.6
TX Power(dBm): -18.0 -32.1 -4.0 N/A N/A 9.8 7.7 7.0
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