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GarethJP
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No Ranging Response received - T3 time-out

Over the last few days I’ve been getting continuous drop outs and really low speeds ~20mb when it should be 200, I used to regularly get in the 180s

Looking at the network log we have loads of the above message, marked Critical...

Network Log


Network Log
First Time Last Time Priority Error Number Description
07/12/2017 20:26:41 GMT 07/12/2017 20:26:41 GMT Critical (3) 82000200 No Ranging Response received - T3 time-out
07/12/2017 20:18:15 GMT 07/12/2017 20:18:15 GMT Warning (5) 66050310 Auth Success - Web login successful.
07/12/2017 20:17:18 GMT 07/12/2017 20:17:18 GMT Error (4) 68010302 DHCP WAN IP - 82.2.*.*
07/12/2017 20:16:12 GMT 07/12/2017 20:16:12 GMT Error (4) 68000407 TOD established
Time Not Established Time Not Established Notice (6) 84000510 Downstream Locked Successfully
07/12/2017 19:58:44 GMT 07/12/2017 19:58:44 GMT Warning (5) 66050310 Auth Success - Web login successful.
07/12/2017 18:33:49 GMT 07/12/2017 18:33:49 GMT Critical (3) 82000200 No Ranging Response received - T3 time-out
07/12/2017 18:15:16 GMT 07/12/2017 18:15:16 GMT Critical (3) 82000200 No Ranging Response received - T3 time-out
07/12/2017 07:20:42 GMT 07/12/2017 07:20:42 GMT Critical (3) 82000200 No Ranging Response received - T3 time-out
06/12/2017 14:29:33 GMT 06/12/2017 14:29:33 GMT Critical (3) 82000200 No Ranging Response received - T3 time-out
06/12/2017 13:06:26 GMT 06/12/2017 13:06:26 GMT Critical (3) 82000200 No Ranging Response received - T3 time-out
06/12/2017 10:47:23 GMT 06/12/2017 10:47:23 GMT Critical (3) 82000200 No Ranging Response received - T3 time-out
06/12/2017 10:02:21 GMT 06/12/2017 10:02:21 GMT Critical (3) 82000200 No Ranging Response received - T3 time-out
06/12/2017 08:34:57 GMT 06/12/2017 08:34:57 GMT Critical (3) 82000200 No Ranging Response received - T3 time-out
06/12/2017 06:51:58 GMT 06/12/2017 06:51:58 GMT Critical (3) 82000200 No Ranging Response received - T3 time-out
06/12/2017 01:30:09 GMT 06/12/2017 01:30:09 GMT Critical (3) 82000200 No Ranging Response received - T3 time-out
05/12/2017 23:26:19 GMT 05/12/2017 23:26:19 GMT Critical (3) 82000200 No Ranging Response received - T3 time-out
05/12/2017 21:00:18 GMT 05/12/2017 21:00:18 GMT Critical (3) 82000200 No Ranging Response received - T3 time-out
05/12/2017 19:55:05 GMT 05/12/2017 19:55:05 GMT Critical (3) 82000200 No Ranging Response received - T3 time-out
05/12/2017 17:58:52 GMT 05/12/2017 17:58:52 GMT Critical (3) 82000200 No Ranging Response received - T3 time-out


Downstream
DS-1 DS-2 DS-3 DS-4 DS-5 DS-6 DS-7 DS-8
Frequency (Hz) 299000000 267000000 275000000 283000000 291000000 307000000 315000000 323000000
Lock Status(QAM Lock/FEC Sync/MPEG Lock) Locked Locked Locked Locked Locked Locked Locked Locked
Channel ID 127 123 124 125 126 128 129 130
Modulation 256QAM 256QAM 256QAM 256QAM 256QAM 256QAM 256QAM 256QAM
Symbol Rate (Msym/sec) 6.952000 6.952000 6.952000 6.952000 6.952000 6.952000 6.952000 6.952000
Interleave Depth I=12
J=17 I=12
J=17 I=12
J=17 I=12
J=17 I=12
J=17 I=12
J=17 I=12
J=17 I=12
J=17
Power Level (dBmV) 0.97 -0.79 -0.21 0.03 1.14 0.73 0.81 0.96
RxMER (dB) 37.64 36.17 36.39 36.39 37.94 37.64 37.36 37.36
Pre RS Errors 310 443 1001 307 910 991 336 968
Post RS Errors 293 301 985 283 899 979 299 941


Upstream
US-1 US-2 US-3 US-4
Channel Type 2.0 N/A N/A 2.0
Channel ID 6 N/A N/A 5
Frequency (Hz) 32600000 N/A N/A 39400000
Ranging Status Success Other Other Success
Modulation 16QAM N/A N/A 16QAM
Symbol Rate (Sym/sec) 5120000 N/A N/A 5120000
Mini-Slot Size 4 N/A N/A 4
Power Level (dBmV) 44.50 N/A N/A 44.50
T1 Timeouts 0 0 0 0
T2 Timeouts 0 0 0 0
T3 Timeouts 0 0 0 1
T4 Timeouts 0 0 0 0


Upstream Burst
Req
(1) Init Maint
(3) Per Maint
(4) Adv Short
(9) Adv Long
(10) Adv UGS
(11)
Modulation Type 16QAM 16QAM 16QAM 16QAM 16QAM 16QAM
Differential Encoding OFF OFF OFF OFF OFF OFF
Preamble Length 36 384 384 64 64 64
Preamble Value Offset 396 6 6 396 396 396
FEC Error Correction (T) 0 5 5 6 8 8
FEC Codeword Information Bytes (K) 16 34 34 76 231 236
Maximum Burst Size 0 0 0 4 0 26
Guard Time Size 22 48 48 22 22 22
Last Codeword Length Fixed Fixed Fixed Shortened Shortened Shortened
Scrambler On/Off ON ON ON ON ON ON

I’m guessing I have an issue somewhere...
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