Intermittent connection issues
For the last couple of weeks, few times per day my internet completely drops for short time (usually less than 1 minute), and after that all is back to normal. This happens at completely random times - there are days when it doesn't happen at all, and other days when it happens several times. Once that happens VM service status page shows "Intermittent signal in your area", then it changes to "You need to book an engineer", and then it's back to "No broadband issues" (until next disconnect).
The engineer came last week, he checked the wiring, signal, etc., and didn't find any issues on my side. He also replaced my Hub 3 with new Hub 5. Unfortunately the issue keeps happening after that.
Here you can see how these drops look:
Every time when these issues happen, the network log in the Hub shows multiple 'critical' entries such as:
- No Ranging Response received - T3 time-out
- 16 consecutive T3 timeouts while trying to range on upstream channel
- Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out
- SYNC Timing Synchronisation failure - Loss of Sync
Could someone from VM have a look and help please?
3.0 Downstream channels
Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID
1 330000000 6.4 41 QAM 256 25
2 138000000 4.7 40 QAM 256 1
3 146000000 4.9 40 QAM 256 2
4 154000000 4.9 40 QAM 256 3
5 162000000 4.9 40 QAM 256 4
6 170000000 4.9 40 QAM 256 5
7 178000000 5 40 QAM 256 6
8 186000000 5.1 40 QAM 256 7
9 194000000 5.3 40 QAM 256 8
10 202000000 5.2 40 QAM 256 9
11 210000000 5.3 40 QAM 256 10
12 218000000 5.4 40 QAM 256 11
13 226000000 5.4 40 QAM 256 12
14 234000000 5.5 40 QAM 256 13
15 242000000 5.6 41 QAM 256 14
16 250000000 5.6 41 QAM 256 15
17 258000000 5.7 41 QAM 256 16
18 266000000 5.6 41 QAM 256 17
19 274000000 5.8 41 QAM 256 18
20 282000000 5.9 41 QAM 256 19
21 290000000 6.2 41 QAM 256 20
22 298000000 6.3 41 QAM 256 21
23 306000000 6.3 41 QAM 256 22
24 314000000 6.4 41 QAM 256 23
25 322000000 6.4 41 QAM 256 24
26 338000000 6.5 40 QAM 256 26
27 346000000 6.7 41 QAM 256 27
28 354000000 6.7 41 QAM 256 28
29 362000000 6.9 41 QAM 256 29
30 370000000 6.9 41 QAM 256 30
31 378000000 7.1 41 QAM 256 31
3.0 Downstream channels
Channel Locked Status RxMER (dB) Pre RS Errors Post RS Errors
1 Locked 41 2166 7079
2 Locked 40 4100 9616
3 Locked 40 4414 15176
4 Locked 40 8311 44157
5 Locked 40 8257 42752
6 Locked 40 8282 46018
7 Locked 40 3734 9961
8 Locked 40 4150 15136
9 Locked 40 2425 6338
10 Locked 40 5829 26867
11 Locked 40 2236 5521
12 Locked 40 1792 4249
13 Locked 40 2056 4722
14 Locked 40 7266 38180
15 Locked 41 2715 12483
16 Locked 41 2280 11454
17 Locked 41 2364 6014
18 Locked 41 2569 9438
19 Locked 41 1924 6029
20 Locked 41 3257 15859
21 Locked 41 1596 4954
22 Locked 41 1679 4609
23 Locked 41 2012 5221
24 Locked 41 3982 22531
25 Locked 41 1646 4652
26 Locked 40 1828 7782
27 Locked 41 1880 7241
28 Locked 41 1724 6518
29 Locked 41 2106 10214
30 Locked 41 1932 8377
31 Locked 41 1543 5268
3.1 Downstream channels
Channel Channel Width (MHz) FFT Type Number of Active Subcarriers Modulation (Active Profile) First Active Subcarrier (Hz)
33 92 4K 1800 QAM 4096 1128
3.1 Downstream channels
Channel ID Locked Status RxMER Data (dB) PLC Power (dBmV) Corrected errors (Active Profile) Uncorrectable errors (Active Profile)
33 Locked 41 6.3 238950482 76
3.0 Upstream channels
Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID
0 49600000 51.5 5120 QAM 64 1
1 43100000 51.5 5120 QAM 64 2
2 36600000 52 5120 QAM 64 3
3 30100000 52.3 5120 QAM 64 4
4 23600000 52.8 5120 QAM 64 9
3.0 Upstream channels
Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts
0 ATDMA 0 46 0 0
1 ATDMA 0 46 0 0
2 ATDMA 0 46 1 0
3 ATDMA 0 46 0 0
4 ATDMA 0 46 0 0
3.1 Upstream channels
Channel Channel Width (MHz) Power (dBmV) FFT Type Modulation
12 10.4 46.5 2K QAM 256
3.1 Upstream channels
Channel Channel Type Number of Active Subcarriers First Active Subcarrier (Hz) T3 Timeouts T4 Timeouts
12 OFDMA 208 74000000 0 0
