My Sophos/Astaro UTM has been reporting that my uplink has been going down randomly an average of 30 times per day for the last couple weeks. Modem levels appeared to be ok on my SB6120, I have one splitter in the entire house which is located in the office running five 4ft RG6 cables to the modem, 2 SDV adapters, and 2 HDHR Primes. I swapped out all cables and got a new splitter from the cox store and nothing changed. I replaced my SB6120 with a DPC3010 and again nothing changed.
The tier 1 and 2 support have not been any help. I am at my wits end because the modem does not appear to be losing sync and the speeds are fine when connected, yet the connection just sort of stops whenever it wants. If I am on a voip call I will just stop hearing anything for a few seconds then it just picks back up. The same with browsing or streaming Netflix. Is there something going on with the node that I am on or something?
Current levels are:
Model: Cisco DPC3010
Vendor: Cisco
Hardware Revision: 1.0
MAC Address:
Bootloader Revision: 2.3.0_R1
Current Software Revision: d3000-v302r125572-130314a-COX
Firmware Name: d3000-v302r125572-130314a-COX.bin
Firmware Build Time: Mar 14 13:17:39 2013
Cable Modem Status: Operational
Cable Modem State:
DOCSIS Downstream Scanning: Completed
DOCSIS Ranging: Completed
DOCSIS DHCP: Completed
DOCSIS TFTP: Completed
DOCSIS Data Reg Complete: Completed
DOCSIS Privacy: Enabled
Downstream Channels Power Level: Signal to Noise Ratio:
Channel 1: -1.2 dBmV 36.9 dB
Channel 2: -1.3 dBmV 37.2 dB
Channel 3: -1.6 dBmV 37.1 dB
Channel 4: -1.7 dBmV 36.8 dB
Channel 5: -1.5 dBmV 36.8 dB
Channel 6: -1.6 dBmV 36.7 dB
Channel 7: -1.8 dBmV 35.7 dB
Channel 8: -2.1 dBmV 35.9 dB
Upstream Channels Power Level:
Channel 1: 47.0 dBmV
Channel 2: 46.7 dBmV
Channel 3: 45.2 dBmV
Channel 4: 44.2 dBmV
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