I usually get 250Mbps down but a few hours ago it dropped to about 30Mbps. I looked at my Arris 6580 modem and it looks like there is an issue with channels 2,3 and 4. I've already power cycled the modem and reconnected the coax. Any ideas what would cause what I'm seeing and could this be a reason for my slow internet speed?
Downstream Bonded Channels
|Channel||Lock Status||Modulation||Channel ID||Frequency||Power||SNR||Corrected||Uncorrectables|
|1||Locked||QAM256||21||525000000 Hz||-3.0 dBmV||38.2 dB||0||0|
|2||Locked||unknown||17||495000000 Hz||-41.9 dBmV||0.0 dB||0||0|
|3||Locked||unknown||18||507000000 Hz||-27.0 dBmV||0.0 dB||0||0|
|4||Locked||QAM256||19||513000000 Hz||-16.6 dBmV||30.6 dB||1826||0|
|5||Locked||QAM256||20||519000000 Hz||-8.5 dBmV||36.5 dB||0||0|
|6||Locked||QAM256||22||531000000 Hz||-1.2 dBmV||39.0 dB||0||0|
|7||Locked||QAM256||23||537000000 Hz||-0.2 dBmV||39.3 dB||0||0|
|8||Locked||QAM256||24||543000000 Hz||0.3 dBmV||39.4 dB||0||0|
First. Try power-cycling / rebooting the 6580 to see if it will range for and lock on to a new / different set of possibly cleaner downstream channels.