Quote:
Originally Posted by GMCinema
Cable Modem Downstream
DS-1 DS-2 DS-3 DS-4
Frequency 299000000 307000000 315000000 323000000
Lock Status
(QAM Lock/FEC Sync/MPEG Lock) Y/Y/Y Y/Y/Y Y/Y/Y Y/Y/Y
Channel Id 5 6 7 8
Modulation 256QAM 256QAM 256QAM 256QAM
Symbol Rate
(Msym/sec) 6.952 6.952 6.952 6.952
Interleave Depth I=12
J=17 I=12
J=17 I=12
J=17 I=12
J=17
Power Level
(dBmV) 1.56 1.75 1.64 1.77
RxMER
(dB) 30.65 30.88 31.01 31.07
Correctable
Codewords 427166789 294589043 225646075 212412201
Uncorrectable
Codewords 486 520 446 480
SNR values have dropped by about 5dB over the last few days and correctable codewords count has shot up ..... Madness .....
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It's the Downstream that is giving you a low MER value, this is either being caused by the local network, Headend issues or your installation. So initially the service tech SHOULD eliminate any issues with your premise, then if the problem still exists SHOULD be passed to the Network team to eliminate issues in the network.
Now obviously the initial 4 visits have only identified the slope to be of an issue, as usual instead of checking the levels at the cabinet and adjusting as necessary or reporting issues with the levels, they have taken the quick and easy route of adjusting the levels within the property and as a result not reporting any potential problems in the network you still have problems!