Forum Discussion

alaric's avatar
alaric
Joining in
2 days ago

Issues with new install

I had VM installed last week. The exterior connection was new from the street because the property hadn't been supplied by VM before.

The router seems to disconnect regularly. This affects streaming, work VPN and makes it unusable. This happens in both modem mode and router mode. Occasionally the light on the Hub 5 goes red and it completely reconnects.

I set up a broadband quality monitor - this is yesterday, including around 1215PM when I tried to stream the F1.

[IMAGE REMOVED]

There seem to be a large number of errors:

Channel IDLocked StatusRxMER Data (dB)PLC Power (dBmV)Corrected errors (Active Profile)Uncorrectable errors (Active Profile)
35Locked419.423910910873648391

I have tried obvious things like rebooting the router. Advice welcomed.

Around the time of disconnects I see messages like:

  • SYNC Timing Synchronization failure - Loss of Sync;[REMOVED]
  • No Maintenance Broadcasts for Ranging opportunitiesreceived - T2 time-out;[REMOVED]
  • Received Response to Broadcast Maintenance Request,But no Unicast Maintenance opportunities received - T4time out;[REMOVED]
  • ToD request sent - No Response received;[REMOVED]
  • Honoring MDD; IP provisioning mode = IPv4
  • DHCP WARNING - Non-critical field invalid in response;[REMOVED]
  • TLV-11 - unrecognized OID;[REMOVED]
  • REGISTRATION COMPLETE - Waiting for Operational status

Typical logs: 

 

Time

PriorityDescription
22-09-2025 13:36:04noticeUS profile assignment change. US Chan ID: 10; Previous Profile: 12 13; New Profile: 11 13.;[REMOVED]
22-09-2025 13:35:02noticeGUI Login Status - Login Success from LAN interface
22-09-2025 13:35:00criticalStarted Unicast Maintenance Ranging - No Response received - T3 time-out;[REMOVED]
22-09-2025 13:34:59warningRNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;[REMOVED]
22-09-2025 13:34:58warningDynamic Range Window violation
22-09-2025 13:34:58warningRNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;[REMOVED]
22-09-2025 13:34:57criticalStarted Unicast Maintenance Ranging - No Response received - T3 time-out;[REMOVED]
22-09-2025 13:30:07noticeCM-STATUS message sent. Event Type Code: 24; Chan ID: 35; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 1 2 3.;[REMOVED]
22-09-2025 13:30:03warningRNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;[REMOVED]
22-09-2025 13:30:00errorDHCP RENEW WARNING - Field invalid in response v4 option;[REMOVED]
22-09-2025 13:29:42noticeCM-STATUS message sent. Event Type Code: 24; Chan ID: 35; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 1 2.;[REMOVED]
22-09-2025 13:27:42warningRNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW[REMOVED]
22-09-2025 13:27:36noticeCM-STATUS message sent. Event Type Code: 5; Chan ID: 1 2 3 4 5 6 7 8 9 10 11 12 13 15 16 17 21 24; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;[REMOVED]
22-09-2025 13:27:36noticeCM-STATUS message sent. Event Type Code: 4; Chan ID: 1 2 3 4 5 6 7 8 9 10 11 12 13 15 16 17 21 24; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;[REMOVED]
22-09-2025 13:27:34warningMDD message timeout;[REMOVED]
22-09-2025 13:27:30noticeCM-STATUS message sent. Event Type Code: 2; Chan ID: 11; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;[REMOVED]
22-09-2025 13:26:03noticeCM-STATUS message sent. Event Type Code: 4; Chan ID: 1 2 3 4 5 6 7 8 9 10 11 12 13 15 16 17 21 24; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;[REMOVED]
22-09-2025 13:25:54noticeCM-STATUS message sent. Event Type Code: 5; Chan ID: 1 2 3 4 5 6 7 8 9 10 11 12 13 15 16 17 21 24; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;[REMOVED]
22-09-2025 13:25:52warningMDD message timeout;[REMOVED]
22-09-2025 13:25:39noticeUS profile assignment change. US Chan ID: 10; Previous Profile: 11 13; New Profile: 12 13.;[REMOVED]
22-09-2025 13:25:36noticeCM-STATUS message sent. Event Type Code: 5; Chan ID: 1 2 3 4 5 6 7 8 9 10 11 12 13 15 16 17 21 24; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;[REMOVED]
22-09-2025 13:24:48warningRNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;[REMOVED]
22-09-2025 13:24:47noticeCM-STATUS message sent. Event Type Code: 16; Chan ID: 35; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;[REMOVED]
22-09-2025 13:24:18noticeCM-STATUS message sent. Event Type Code: 16; Chan ID: 35; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;[REMOVED]
22-09-2025 13:20:26warningRNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;[REMOVED]
22-09-2025 13:20:20noticeUS profile assignment change. US Chan ID: 10; Previous Profile: 12 13; New Profile: 11 13.;[REMOVED]
22-09-2025 13:18:38noticeCM-STATUS message sent. Event Type Code: 24; Chan ID: 35; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 1 2 3.;[REMOVED]
22-09-2025 13:16:32warningDynamic Range Window violation
22-09-2025 13:16:32warningDynamic Range Window violation
22-09-2025 13:16:32warningRNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;[REMOVED]
22-09-2025 13:16:32warningRNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;[REMOVED]
22-09-2025 13:16:32warningDynamic Range Window violation
22-09-2025 13:16:32warningRNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;[REMOVED]

[MOD EDIT: Image removed due to containing private information]

6 Replies

  • Adduxi's avatar
    Adduxi
    Very Insightful Person
    24 hours ago

    Awful connection with power levels out of spec and horrendous PostRS errors.  Dreadful 

  • alaric's avatar
    alaric
    Joining in
    2 days ago

    Image that was removed from the original post (personal data now removed - thank you mods):

    Not managing to paste the tables due to formatting.

    3.0 Downstream channels

    Channel	Frequency (Hz)	Power (dBmV)	SNR (dB)	Modulation	Channel ID
1	331000000	11.8	41	QAM 256	25
2	139000000	13.3	41	QAM 256	1
3	147000000	13.1	41	QAM 256	2
4	155000000	12.9	41	QAM 256	3
5	163000000	12.8	41	QAM 256	4
6	171000000	12.6	41	QAM 256	5
7	179000000	12.7	41	QAM 256	6
8	187000000	12.9	41	QAM 256	7
9	195000000	13.3	41	QAM 256	8
10	203000000	13.4	42	QAM 256	9
11	211000000	13.6	42	QAM 256	10
12	219000000	13.5	42	QAM 256	11
13	227000000	13.3	41	QAM 256	12
14	235000000	13.3	42	QAM 256	13
15	243000000	13.2	42	QAM 256	14
16	251000000	13.1	42	QAM 256	15
17	259000000	13	42	QAM 256	16
18	267000000	12.8	42	QAM 256	17
19	275000000	12.6	42	QAM 256	18
20	283000000	12.5	41	QAM 256	19
21	291000000	12.5	41	QAM 256	20
22	299000000	12.5	41	QAM 256	21
23	307000000	12.7	42	QAM 256	22
24	315000000	12.5	42	QAM 256	23
25	323000000	12.2	41	QAM 256	24
26	411000000	10.3	41	QAM 256	36
27	419000000	10.4	41	QAM 256	37
28	523000000	9.3	40	QAM 256	38
29	531000000	9.2	40	QAM 256	39
30	539000000	9.2	40	QAM 256	40
31	547000000	9.1	40	QAM 256	41
    Channel	Locked Status	RxMER (dB)	Pre RS Errors	Post RS Errors
1	Locked	41	351831	69575
2	Locked	41	83675	4568
3	Locked	41	691603	33515
4	Locked	41	1235959	128294
5	Locked	41	628965	114955
6	Locked	41	668099	109105
7	Locked	41	675969	101148
8	Locked	41	479721	92908
9	Locked	41	393820	68069
10	Locked	42	396582	64505
11	Locked	42	394609	57412
12	Locked	42	395673	53235
13	Locked	41	395394	49006
14	Locked	42	418999	63850
15	Locked	42	130117	12149
16	Locked	42	82254	8135
17	Locked	42	113634	27441
18	Locked	42	151002	31032
19	Locked	42	125811	8705
20	Locked	41	93350	8417
21	Locked	41	129910	8726
22	Locked	41	161287	14224
23	Locked	42	80364	6501
24	Locked	42	100604	8180
25	Locked	41	136800	22111
26	Locked	41	248132	11900
27	Locked	41	189481	11134
28	Locked	40	57809	8424
29	Locked	40	61168	5803
30	Locked	40	48956	5012
31	Locked	40	76506	4252

    3.1 Downstream Channels

    Channel	Channel Width (MHz)	FFT Type	Number of Active Subcarriers	Modulation (Active Profile)	First Active Subcarrier (Hz)
35	94	4K	1840	QAM 4096	1108
    Channel ID	Locked Status	RxMER Data (dB)	PLC Power (dBmV)	Corrected errors (Active Profile)	Uncorrectable errors (Active Profile)
35	Locked	41	9.9	3267507597	3653092

    3.0 Upstream Channels

    Channel	Frequency (Hz)	Power (dBmV)	Symbol Rate (ksps)	Modulation	Channel ID
0	49600000	39.5	5120	QAM 64	1
1	43100000	39	5120	QAM 64	2
2	36600000	38.8	5120	QAM 64	3
3	30100000	38	5120	QAM 64	4
4	23600000	37.3	5120	QAM 64	9
    Channel	Channel Type	T1 Timeouts	T2 Timeouts	T3 Timeouts	T4 Timeouts
0	ATDMA	0	139	45	0
1	ATDMA	0	139	49	0
2	ATDMA	0	139	49	0
3	ATDMA	0	139	46	0
4	ATDMA	0	139	59	0

    3.1 Upstream Channels

    Channel	Channel Width (MHz)	Power (dBmV)	FFT Type	Modulation
10	10.4	35.5	2K	QAM 256
    Channel	Channel Type	Number of Active Subcarriers	First Active Subcarrier (Hz)	T3 Timeouts	T4 Timeouts
10	OFDMA	208	74000000	1	0

     

    • -tony-'s avatar
      -tony-
      Alessandro Volta
      2 days ago

      if nothing has changed since the tech left he wantsa size 9 up his backside - the downstream levels are too high - 10 is the max - i wll add the rider thats i am not fully up to date with tech specs but thats as it was and i dont think things have changed

      there would also look to be problems with errors - - reboot the hub which should zero them and see if the rise

      all you can do is check all the connections and see it they are tight - do them in the external box and then those in the house - if that does nothing book a tech - assuming offshore are just as useless as they ever were they will make up all sorts of reasons why its as it is - if you ring turn the hub off and say you need a tech as the connection is down - that should get things moving

      • alaric's avatar
        alaric
        Joining in
        3 hours ago

        Thanks for the reply. Nothing has changed since the install. To be fair the install technician did walk around and show me a speed test at different points on the ground floor. It does hit 500Mbps - but drops regularly if used for any period of time.

        I'll follow your advice tomorrow and reboot then check the connections.

  • Tudor's avatar
    Tudor
    Very Insightful Person
    2 days ago

    Please post a FULL setof stats.