Recently, starting this past Sunday 1/19/2014, my Comcast HSI has been very unreliable. I noticed this while trying to view some streaming videos, it would buffer very heavily. My online games were almost unplayable and laggy.
From what I can tell, my cable modem (Arris TM822g) signals are ok:
RF Parameters
Downstream
DCID Freq Power SNR Modulation Octets Correcteds Uncorrectables
Downstream 1 1 561.00 MHz 6.58 dBmV 37.94 dB 256QAM 54478455 0 0
Downstream 2 2 567.00 MHz 6.34 dBmV 37.94 dB 256QAM 6134900 0 0
Downstream 3 3 573.00 MHz 6.37 dBmV 37.64 dB 256QAM 7066425 0 0
Downstream 4 4 579.00 MHz 6.24 dBmV 37.94 dB 256QAM 6012472 0 0
Downstream 5 5 585.00 MHz 6.01 dBmV 37.94 dB 256QAM 6217627 0 0
Downstream 6 6 591.00 MHz 6.16 dBmV 37.94 dB 256QAM 6119334 0 0
Downstream 7 7 597.00 MHz 6.17 dBmV 37.94 dB 256QAM 5997220 0 0
Downstream 8 8 603.00 MHz 6.12 dBmV 37.94 dB 256QAM 6165394 0 0
Reset FEC Counters
Upstream
UCID Freq Power Channel Type Symbol Rate Modulation
Upstream 1 5 30.60 MHz 43.50 dBmV DOCSIS2.0 (ATDMA) 5120 kSym/s 64QAM
Upstream 3 4 25.30 MHz 42.50 dBmV DOCSIS2.0 (ATDMA) 2560 kSym/s 64QAM
Upstream 4 6 37.00 MHz 45.00 dBmV DOCSIS2.0 (ATDMA) 5120 kSym/s 64QAM
I ran a series of tests from pingtest.net and the results were all over the place:
http://www.pingtest.net/result/92161550.png
http://www.pingtest.net/result/92161581.png
http://www.pingtest.net/result/92161603.png
http://www.pingtest.net/result/92161623.png
http://www.pingtest.net/result/92161645.png
http://www.pingtest.net/result/92161676.png
http://www.pingtest.net/result/92161712.png
http://www.pingtest.net/result/92161734.png
http://www.pingtest.net/result/92161759.png
http://www.pingtest.net/result/92161789.png
http://www.pingtest.net/result/92161803.png
Just to make sure it wasn't my computer, I took it to another location with an old DSL line, and connection was stable:
http://www.pingtest.net/result/92176190.png
http://www.pingtest.net/result/92176319.png
http://www.pingtest.net/result/92176429.png
http://www.pingtest.net/result/92176467.png
http://www.pingtest.net/result/92176508.png
http://www.pingtest.net/result/92176547.png
http://www.pingtest.net/result/92176579.png
http://www.pingtest.net/result/92176607.png
http://www.pingtest.net/result/92176650.png
http://www.pingtest.net/result/92176705.png
http://www.pingtest.net/result/92176751.png
Hoping someone here have some ideas, before I deal with Comcast phone hell.
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