NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.
Forum Discussion
CM-500 Slow speeds, shows weak signal on ISP's end
Modem is CM500, Cox is ISP. MY speeds have dropped to half of capacity in the last month(down to 160mbps). Mac OSX 10.11.6, Apple Time Capsule router(2014). Have done all the power cycling, rebooting...
Thanks. They checked(level 2 support) and said the signal end everything was fine on their end. They said the modem was having power(volts or amps or something to that effect). So is this a hardware problem or what then? It's outta warranty in a month, so I need t figure out what to do...
There's not enough information to tell whether or not it's a hardware problem. You can also check the signal levels on your modem.
Did you remove any unnecessary splitters?
Yeah, there's no splitters anyway. One line to the modem from the wall cable outlet to the modem. Not sure what to do if they state it's not their end. Connectivity isn't a problem, just slower speeds. They say signal is fine, but they see a problem on the modem's end. I factory reset the modem and router, that usually makes it a LITTLE faster, but I'm having to do that too often.
You may have connectivity but that doesn't mean the quality of the connection is good, sorta like Wi-Fi.
How about posting the signal levels under Cable Connection?
Really appreciate your help. I've factory reset the modem and router before I pulled these, so these may not be helpful:
Acquire Downstream Channel 819000000 Hz Locked
Connectivity State OK Operational
Boot State OK Operational
Security Enabled BPI+
IP Provisioning Mode Honor MDD honorMdd(4)
Downstream Bonded Channels
Channel Lock Status Modulation Channel ID Frequency Power SNR Correctables Uncorrectables
1 Locked QAM256 4 819000000 Hz 9.8 dBmV 41.2 dB 0 0
2 Locked QAM256 1 801000000 Hz 10.4 dBmV 41.8 dB 0 0
3 Locked QAM256 2 807000000 Hz 10.1 dBmV 41.6 dB 0 0
4 Locked QAM256 3 813000000 Hz 10 dBmV 41.5 dB 1 0
5 Locked QAM256 5 825000000 Hz 9.3 dBmV 40.8 dB 1 0
6 Locked QAM256 6 831000000 Hz 8.9 dBmV 40.6 dB 1 0
7 Locked QAM256 7 837000000 Hz 8.6 dBmV 40.4 dB 3 0
8 Locked QAM256 8 843000000 Hz 8.3 dBmV 40.2 dB 2 0
9 Locked QAM256 17 897000000 Hz 6.1 dBmV 39.4 dB 22 0
10 Locked QAM256 18 903000000 Hz 5.9 dBmV 39.2 dB 14 0
11 Locked QAM256 19 909000000 Hz 5.2 dBmV 38.9 dB 36 0
12 Locked QAM256 20 915000000 Hz 4.8 dBmV 38.7 dB 41 0
13 Locked QAM256 21 921000000 Hz 4.3 dBmV 38.5 dB 31 0
14 Locked QAM256 22 927000000 Hz 4 dBmV 38.2 dB 28 0
15 Locked QAM256 23 933000000 Hz 4 dBmV 38.3 dB 36 0
16 Locked QAM256 24 939000000 Hz 3.6 dBmV 38 dB 37 0
Upstream Bonded Channels
Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power
1 Locked ATDMA 2 5120 Ksym/sec 23300000 Hz 45 dBmV
2 Locked TDMA and ATDMA 1 2560 Ksym/sec 18400000 Hz 45 dBmV
3 Locked ATDMA 3 5120 Ksym/sec 29800000 Hz 44.9 dBmV
4 Locked ATDMA 4 5120 Ksym/sec 36300000 Hz 43.4 dBmV
Current System Time:Sun Jan 08 17:29:01 2017