Any DOCSIS experts in here?
One of my sites is having traffic loss. The ISP has replaced the cable modem with three different models. Almost no correctable on downstream, SNR is 41 to 43 db +5 on down, Up is 42 to 43. RF Plant reported no noise in the line after a couple day.
Down Channels
16 Channels DOCSIS 3.0 QAM256
1 OFDM
Up Channels
3 DOCSIS 3.0 QAM64 Channels
Packet loss of 2-14%
It creates a pattern when using ping plotter. See attached pictures. Same pattern happen when directly connected to the modem with a PC. So it not my router.
If pinging the modem externally its only dropping in the last route which makes me believe its a RF issue or CMTS issue.
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