Technicolor panoramic router connection hiccups

Hi all,

For the last couple of months I'm experiencing periodic connection hiccups with my Technicolor panoramic router. I work remotely via SSH and there are periodic (once in several minutes) moments when the remote side is not responding. Kids are also complaining that when they play online games, they keep freezing for a couple of seconds.

I've set up a raspberry pi which is connected to the router's ethernet port directly and runs SmokePing. What I'm seeing is that there are periodic packet losses when pinging router's LAN address:

You can see the blue dots appear periodically which mean 1 of 4 ICMP packets have been lost.

The download / upload speeds are good.

The router is connected directly to the cable that comes to the house. But some signal levels look slightly out of spec:

Downstream
Channel Bonding Value
Index
9
1
2
3
4
10
11
12
17
18
19
20
21
22
25
26
27
28
29
30
33
34
35
36
37
38
41
42
43
44
45
46
159
Lock Status
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Frequency
831 MHz
783 MHz
789 MHz
795 MHz
801 MHz
837 MHz
843 MHz
849 MHz
879 MHz
885 MHz
891 MHz
897 MHz
903 MHz
909 MHz
927 MHz
933 MHz
939 MHz
945 MHz
951 MHz
957 MHz
405 MHz
411 MHz
417 MHz
423 MHz
429 MHz
435 MHz
453 MHz
459 MHz
465 MHz
471 MHz
477 MHz
483 MHz
348 MHz
251600000
SNR
37.3 dB
36.4 dB
36.3 dB
36.8 dB
37.0 dB
37.2 dB
37.1 dB
37.0 dB
36.8 dB
36.8 dB
36.8 dB
36.5 dB
36.6 dB
36.6 dB
36.4 dB
36.5 dB
36.5 dB
36.6 dB
36.6 dB
36.4 dB
39.2 dB
39.5 dB
39.6 dB
39.5 dB
39.5 dB
39.6 dB
39.7 dB
39.6 dB
39.7 dB
39.5 dB
39.7 dB
39.7 dB
42.6 dB
NA
Power Level
7.5 dBmV
5.7 dBmV
5.7 dBmV
6.6 dBmV
7.3 dBmV
7.3 dBmV
6.9 dBmV
6.7 dBmV
8.1 dBmV
8.2 dBmV
8.4 dBmV
8.3 dBmV
8.4 dBmV
8.5 dBmV
8.1 dBmV
8.0 dBmV
7.8 dBmV
7.6 dBmV
7.3 dBmV
6.9 dBmV
10.6 dBmV
10.6 dBmV
10.5 dBmV
10.6 dBmV
10.9 dBmV
11.0 dBmV
10.9 dBmV
10.8 dBmV
10.8 dBmV
10.9 dBmV
11.1 dBmV
11.2 dBmV
14.6 dBmV
NA
Modulation
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
OFDM
OFDM
Upstream
Channel Bonding Value
Index
1
2
3
4
Lock Status
Locked
Locked
Locked
Locked
Frequency
17 MHz
24 MHz
30 MHz
36 MHz
Symbol Rate
5120
5120
5120
5120
Power Level
29.5 dBmV
30.5 dBmV
31.3 dBmV
32.0 dBmV
Modulation
QAM
QAM
QAM
QAM
Channel Type
ATDMA
ATDMA
ATDMA
ATDMA

Should I call the technicians to check the signal or the router? It's not very easy to explain this problem to Cox tech support because they prefer to deal with situations when something isn't working at all and preferably can be fixed by rebooting the router