About node006565

SB6190 modem, SNR, and Power and upload speed is good. I've made calls to Xfinity technical support who were each capable of modem reboot, however I have not found any way to request Xfinity test their equipment to ensure it is functioning correctly. ... View more

My DOCSIS 3.0 modem speeds have mysteriesly been cut in half since May 2020.  It's an SB6190 subscribed to 250  Mbps Xfinity with slow ~90 Mbps download (upload speed is normal)      Any others with DOCSIS 3.0 modems post https://speedtest.xfinity.com/ results to this thread to let us know if your internet speeds are as expected or slower than Xfinity subscription. ... View more

  So the Xfinity Slow download download speed with good upload speed problim contines with my SB6190 DOCSIS 3.0 modem. Below please find modem status after 72+ hours of runtime.  Power and SNR looks good.  Slow download occurrs even with all 32 downstream channels connected!   Anyone have any ideas on how an Xfinity customer can ask for a check of their side of the network or am I just an SOL user? Downstream Bonded Channels Channel Lock Status Modulation Channel ID Frequency Power SNR Corrected Uncorrectables 1 Locked 256QAM 37 645.00 MHz 4.50 dBmV 40.37 dB 3 0 2 Locked 256QAM 9 471.00 MHz 4.80 dBmV 40.37 dB 12 0 3 Locked 256QAM 10 477.00 MHz 4.70 dBmV 40.95 dB 0 0 4 Locked 256QAM 11 483.00 MHz 4.70 dBmV 40.95 dB 0 0 5 Locked 256QAM 12 489.00 MHz 4.70 dBmV 40.37 dB 14 0 6 Locked 256QAM 13 495.00 MHz 4.60 dBmV 40.37 dB 8 0 7 Locked 256QAM 14 507.00 MHz 4.60 dBmV 40.95 dB 14 0 8 Locked 256QAM 15 513.00 MHz 4.60 dBmV 40.95 dB 0 0 9 Locked 256QAM 16 519.00 MHz 4.50 dBmV 40.37 dB 10 0 10 Locked 256QAM 17 525.00 MHz 4.50 dBmV 40.37 dB 9 0 11 Locked 256QAM 18 531.00 MHz 4.40 dBmV 40.37 dB 14 0 12 Locked 256QAM 19 537.00 MHz 4.20 dBmV 40.37 dB 0 0 13 Locked 256QAM 20 543.00 MHz 4.10 dBmV 40.37 dB 3 0 14 Locked 256QAM 21 549.00 MHz 4.00 dBmV 40.37 dB 0 0 15 Locked 256QAM 22 555.00 MHz 4.00 dBmV 40.37 dB 2 0 16 Locked 256QAM 23 561.00 MHz 3.90 dBmV 40.37 dB 1 0 17 Locked 256QAM 24 567.00 MHz 4.00 dBmV 40.37 dB 1 0 18 Locked 256QAM 25 573.00 MHz 4.00 dBmV 40.37 dB 1 0 19 Locked 256QAM 26 579.00 MHz 4.00 dBmV 40.37 dB 0 0 20 Locked 256QAM 27 585.00 MHz 4.10 dBmV 40.37 dB 0 0 21 Locked 256QAM 28 591.00 MHz 4.20 dBmV 40.37 dB 1 0 22 Locked 256QAM 29 597.00 MHz 4.20 dBmV 40.37 dB 3 0 23 Locked 256QAM 30 603.00 MHz 4.10 dBmV 40.37 dB 2 0 24 Locked 256QAM 31 609.00 MHz 4.00 dBmV 40.95 dB 2 0 25 Locked 256QAM 32 615.00 MHz 4.00 dBmV 39.50 dB 2 0 26 Locked 256QAM 33 621.00 MHz 4.00 dBmV 39.50 dB 0 0 27 Locked 256QAM 34 627.00 MHz 4.20 dBmV 39.90 dB 0 0 28 Locked 256QAM 35 633.00 MHz 4.20 dBmV 39.50 dB 0 0 29 Locked 256QAM 36 639.00 MHz 4.40 dBmV 39.20 dB 1 0 30 Locked 256QAM 38 651.00 MHz 4.40 dBmV 39.50 dB 0 0 31 Locked 256QAM 39 657.00 MHz 4.30 dBmV 39.50 dB 1 0 32 Locked 256QAM 40 663.00 MHz 4.40 dBmV 39.50 dB 4 0     Upstream Bonded Channels Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power 1 Locked ATDMA 2 5120 kSym/s 24.40 MHz 37.50 dBmV 2 Locked ATDMA 5 1280 kSym/s 41.20 MHz 37.50 dBmV 3 Locked ATDMA 4 5120 kSym/s 37.20 MHz 37.50 dBmV 4 Locked ATDMA 3 5120 kSym/s 30.80 MHz 37.50 dBmV 5 Locked ATDMA 1 5120 kSym/s 18.00 MHz 37.50 dBmV   Current System Time:   Wed Aug 26 13:45:53 2020 ... View more

This is an ongoing problem.  The SB6190 continues to have slow Xfinity Internet speeds.   ... View more

I also began experiencing slower speeds in the May 2020 time period.   I contacted Arris and modem passed all tests.  Since we have both experienced slow speeds around the same time this definitly looks like a change was made by Xfinity in this timeperiod which has slowed connections to SB6190 and possibly other modems.    1)  Please at least try to post your Arris error logs to this thread. Arris error logs may be found by going to http://192.168.100.1/cgi-bin/eventlog  (username=admin, password=password).   2)  Please also seek a Xfinity billing credit for spending time helping Xfinity troubleshoot a problem(s) with their service. ... View more