Arris TG862 Modem Keeps Disconnecting

Question

Hello: I have a Comcast provided Arris TG862 modem for both voice and Internet. The modem is in bridged mode and connects to an Asus RT-AC68U wireless router via Port 1 on the Arris. I have been having issues where the modem will drop the signal and I need to power off the modem and disconnect the coaxial cable going into the modem for a few miuntes and the reconnect and repower. This seems to solve the problem for various amounts of time (1-2 days) and then I will have to go thru the routine again. Here are the readins from the Arris Status Page: Downstream
Channel Bonding Value
Index  1  2  3  4  5  6  7  8
Lock Status Locked  Locked  Locked  Locked  Locked  Locked  Locked  Locked  
Frequency 657.00 MHz 663.00 MHz 699.00 MHz 711.00 MHz 723.00 MHz 729.00 MHz 741.00 MHz 747.00 MHz
SNR  36.61 dB 36.61 dB 36.61 dB 36.61 dB 36.61 dB 36.61 dB 36.39 dB 35.97 dB
Power Level 8.94 dBmV 8.61 dBmV 9.37 dBmV 10.31 dBmV 9.14 dBmV 9.05 dBmV 9.79 dBmV 9.06 dBmV 
Modulation 256QAM  256QAM  256QAM  256QAM  256QAM
Upstream
Index  1  2  3  4 
Lock Status Locked  Locked  Locked  Not Locked  
Frequency 22.60 MHz 36.40 MHz 29.50 MHz ---
Symbol Rate 5120 Ksym/sec 5120 Ksym/sec 5120 Ksym/sec ---
Power Level 39.00 dBmV 40.75 dBmV 40.00 dBmV --- 
Modulation 64QAM  64QAM  64QAM  --- All the connections seem good. This problem has only arisen in the last month or so and it is driving me nts. Thanks!

Answer 1

Maybe but not for me. I spent £120 on a modem so I can get faster speed as I used to have under 3MB, so don't want to just go back to have old speed.
It was stable for ages so don't know why this started to happen.
I've installed Routerstats but it don't seem to work with the Bipac 7800N as you can see by the picture it won't find the status only the firmware etc.
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