Sauce245
On our wavelength
Joined 5 years ago
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Re: Upload speed not reaching 104 & packet loss on BQM
For a while after this I kept seeing upload speed degredation after some days of the router being online. It would drop from around 104 to 90 then to 80 and below, and would only be fixed after a restart. This also came with a noticeable spike in noise on the BQM, which would also immediately settle after a restart. I noticed over the last couple of weeks that this stopped happening and then today I noticed I finally have a DOCSIS 3.1 upload channel....weird. I guess VM have done some work externally that has finally given me a 3.1 upstream channel. However I still see consistent T3 timeouts on upload, there is always at least one T3 timeout on this page: Connection seems fine though so I guess I just ignore these timeouts? BQMRe: BQM Check for Gig1 please
Hey, you were totally correct. I got an engineer to visit and now things are looking much better, way less jitter and noise on the line, BQM is much much quieter. Power levels are in spec now, but still no 3.1 channel. Posted router stats and summary here if you're interested (The 2 T3 timeouts seem to be as the engineer was still working on the connection, I haven't see any more since) Just out of pure curiosity, what does it mean to be on an inverted node? I thought all areas had the 3.1 upgrade now? I am 99% sure I am just on a regular HFC connection, the engineer said the same and I see no ONU on the outside and there is definitely not one inside of the flat. A few suspected I might be on an RFoG connection due to the lack of the 3.1 upstream.Re: Upload speed not reaching 104 & packet loss on BQM
So...engineer came today and said that at the cabinet I was connected to a very old line that was feeding in to multiple splitters in to the flats where I live. So he has moved me on to a new spare slot in the cabinet and directly connected me without the splitters and then fitted an attenuator. He also directly connected the port I am using to the cable outside and moved the isolator in to the socket that is actively being used, so I now have a direct connection from outside in to the socket I use for the modem. This seems to have solved the noise issue on the downstream and the power levels (downstream power seems to be just in spec) However, I still have no 3.1 upstream channel, and am still seeing T3 timeouts on the upload. Could somebody please give these stats a once over? I will see how it fares in terms of any packet loss or drop outs over time, but for now the speeds are fine and the latency is as expected. The engineer said that after some time, the 3.1 channel should appear but I am not so sure that will be the case. Also just to confirm, it is an HFC connection. 3.0 Upstream channels Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID 0 60300000 47.5 5120 QAM 64 9 1 53700000 48 5120 QAM 64 10 2 46200000 47.8 5120 QAM 64 11 3 39400000 46.5 5120 QAM 64 12 4 32600000 46 5120 QAM 64 13 5 25800000 45.5 5120 QAM 64 14 3.0 Upstream channels Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts 0 ATDMA 0 0 0 0 1 ATDMA 0 0 0 0 2 ATDMA 0 0 2 0 3 ATDMA 0 0 0 0 4 ATDMA 0 0 0 0 5 ATDMA 0 0 0 0 3.0 Downstream channels Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID 1 298000000 7.6 44 QAM 256 21 2 138000000 7.6 45 QAM 256 1 3 146000000 7.5 45 QAM 256 2 4 154000000 7.5 44 QAM 256 3 5 162000000 7.4 44 QAM 256 4 6 170000000 7.3 44 QAM 256 5 7 178000000 7.2 44 QAM 256 6 8 186000000 7.2 44 QAM 256 7 9 194000000 7.4 44 QAM 256 8 10 202000000 7.4 44 QAM 256 9 11 210000000 7.7 44 QAM 256 10 12 218000000 7.7 44 QAM 256 11 13 226000000 7.9 44 QAM 256 12 14 234000000 7.9 44 QAM 256 13 15 242000000 7.8 44 QAM 256 14 16 250000000 7.7 44 QAM 256 15 17 258000000 7.7 44 QAM 256 16 18 266000000 7.6 44 QAM 256 17 19 274000000 7.7 44 QAM 256 18 20 282000000 7.7 44 QAM 256 19 21 290000000 7.6 44 QAM 256 20 22 306000000 7.6 44 QAM 256 22 23 314000000 7.5 44 QAM 256 23 24 322000000 7.3 44 QAM 256 24 25 330000000 7.3 45 QAM 256 25 26 338000000 7.6 44 QAM 256 26 27 346000000 7.6 45 QAM 256 27 28 354000000 7.3 44 QAM 256 28 29 362000000 7.3 44 QAM 256 29 30 370000000 7.6 45 QAM 256 30 31 378000000 7.6 45 QAM 256 31 3.0 Downstream channels Channel Locked Status RxMER (dB) Pre RS Errors Post RS Errors 1 Locked 44 0 0 2 Locked 45 0 0 3 Locked 45 0 0 4 Locked 44 0 0 5 Locked 44 0 0 6 Locked 44 0 0 7 Locked 44 0 0 8 Locked 44 0 0 9 Locked 44 0 0 10 Locked 44 0 0 11 Locked 44 0 0 12 Locked 44 0 0 13 Locked 44 0 0 14 Locked 44 0 0 15 Locked 44 0 0 16 Locked 44 0 0 17 Locked 44 0 0 18 Locked 44 0 0 19 Locked 44 0 0 20 Locked 44 0 0 21 Locked 44 0 0 22 Locked 44 0 0 23 Locked 44 0 0 24 Locked 44 0 0 25 Locked 45 0 0 26 Locked 44 0 0 27 Locked 45 0 0 28 Locked 44 0 0 29 Locked 44 0 0 30 Locked 45 0 0 31 Locked 45 0 0 3.1 Downstream channels Channel Channel Width (MHz) FFT Type Number of Active Subcarriers Modulation (Active Profile) First Active Subcarrier (Hz) 159 128 4K 2511 QAM 4096 768 3.1 Downstream channels Channel ID Locked Status RxMER Data (dB) PLC Power (dBmV) Corrected errors (Active Profile) Uncorrectable errors (Active Profile) 159 Locked 44 6.5 981962 0 Cable Modem StatusItem Status TypeChannel Overview Downstream Upstream Cable Modem Status Online DOCSIS 3.0 Primary downstream channel Locked SC-QAM DOCSIS 3.0 channels 31 6 DOCSIS 3.1 channels 1 0 Thank you all 😊Re: BQM Check for Gig1 please
I appreciate that, but there is something fundamentally wrong with the connection. As the guy above me has mentioned, there are timeouts, high power levels on the upstream and a couple of the downstream channels have an SNR issue. How do I get an engineer to visit? I am already fighting Virgin Media for money back that should never have been charged and all of this is just so much harder than it has been for the last 3 years with Openreach providers where I had 0 issues, 0 dropouts, 1 engineer visit in 3 years to install the service and that's it. So frustrating.
