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UCD invalid or channel unusable...
#1
Dear All,

I've seen more than once on this forum the same, problem, but it seems that it is not exactly the same here.
I was at a friend place, in a really tiny city and he has a thomson modem. I took my sb5101 to try it on his line, but here is what I am getting:

Code:
1970-01-01 00:11:11     Critical     T001.0     SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
1970-01-01 00:11:10     Notice     M572.0     T1 No Ucd Timeout - Reinitialize MAC...
1970-01-01 00:11:10     Critical     U001.0     No UCD's Received - Timeout
1970-01-01 00:11:01     Critical     U002.0     UCD invalid or channel unusable
1970-01-01 00:10:47     Critical     T001.0     SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
1970-01-01 00:10:46     Critical     T002.0     SYNC Timing Synchronization failure - Failed to acquire FEC framing
1970-01-01 00:10:45     Critical     T001.0     SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
1970-01-01 00:10:38     Critical     T002.0     SYNC Timing Synchronization failure - Failed to acquire FEC framing
1970-01-01 00:10:37     Critical     T001.0     SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
1970-01-01 00:10:37     Critical     T002.0     SYNC Timing Synchronization failure - Failed to acquire FEC framing
1970-01-01 00:10:34     Critical     T001.0     SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
1970-01-01 00:10:13     Critical     T002.0     SYNC Timing Synchronization failure - Failed to acquire FEC framing
1970-01-01 00:10:12     Critical     T001.0     SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
1970-01-01 00:10:11     Critical     T002.0     SYNC Timing Synchronization failure - Failed to acquire FEC framing
1970-01-01 00:10:10     Critical     T001.0     SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
1970-01-01 00:10:04     Critical     T002.0     SYNC Timing Synchronization failure - Failed to acquire FEC framing
1970-01-01 00:10:03     Notice     M572.0     Ds Lock Failed - Reinitialize MAC...
1970-01-01 00:09:52     Critical     T002.0     SYNC Timing Synchronization failure - Failed to acquire FEC framing
1970-01-01 00:09:51     Notice     M572.0     Ds Lock Failed - Reinitialize MAC...
1970-01-01 00:09:50     Critical     T002.0     SYNC Timing Synchronization failure - Failed to acquire FEC framing
1970-01-01 00:09:48     Notice     M572.0     T1 No Ucd Timeout - Reinitialize MAC...
1970-01-01 00:09:48     Critical     U001.0     No UCD's Received - Timeout
1970-01-01 00:09:40     Critical     U002.0     UCD invalid or channel unusable
1970-01-01 00:09:37     Critical     T002.0     SYNC Timing Synchronization failure - Failed to acquire FEC framing
1970-01-01 00:09:35     Notice     M572.0     Ds Lock Failed - Reinitialize MAC...
1970-01-01 00:09:02     Critical     T002.0     SYNC Timing Synchronization failure - Failed to acquire FEC framing
1970-01-01 00:08:56     Critical     T001.0     SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
1970-01-01 00:08:55     Critical     T002.0     SYNC Timing Synchronization failure - Failed to acquire FEC framing
1970-01-01 00:08:53     Critical     T001.0     SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
1970-01-01 00:08:52     Notice     M572.0     Ds Lock Failed - Reinitialize MAC...
1970-01-01 00:08:49     Critical     T001.0     SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
1970-01-01 00:08:39     Critical     T002.0     SYNC Timing Synchronization failure - Failed to acquire FEC framing
1970-01-01 00:08:36     Critical     T001.0     SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
1970-01-01 00:08:34     Critical     T002.0     SYNC Timing Synchronization failure - Failed to acquire FEC framing
1970-01-01 00:08:34     Notice     M572.0     Ds Lock Failed - Reinitialize MAC...
1970-01-01 00:08:33     Critical     T002.0     SYNC Timing Synchronization failure - Failed to acquire FEC framing
1970-01-01 00:08:32     Notice     M572.0     Ds Pulse Failed - Reinitialize MAC...
1970-01-01 00:08:32     Notice     M572.0     Ds Lock Failed - Reinitialize MAC...
1970-01-01 00:08:31     Critical     U002.0     UCD invalid or channel unusable
1970-01-01 00:08:31     Notice     M572.0     T1 No Ucd Timeout - Reinitialize MAC...
1970-01-01 00:08:31     Critical     U001.0     No UCD's Received - Timeout
1970-01-01 00:08:22     Critical     U002.0     UCD invalid or channel unusable
1970-01-01 00:08:20     Notice     M572.0     Ds Lock Failed - Reinitialize MAC...
1970-01-01 00:08:20     Critical     T002.0     SYNC Timing Synchronization failure - Failed to acquire FEC framing
1970-01-01 00:08:19     Notice     M572.0     Ds Lock Failed - Reinitialize MAC...
1970-01-01 00:08:18     Critical     T002.0     SYNC Timing Synchronization failure - Failed to acquire FEC framing
1970-01-01 00:08:17     Notice     M572.0     Ds Lock Failed - Reinitialize MAC...
1970-01-01 00:08:15     Critical     T002.0     SYNC Timing Synchronization failure - Failed to acquire FEC framing
1970-01-01 00:08:14     Notice     M572.0     Ds Lock Failed - Reinitialize MAC...
1970-01-01 00:08:13     Critical     T002.0     SYNC Timing Synchronization failure - Failed to acquire FEC framing
1970-01-01 00:08:12     Notice     M572.0     Ds Lock Failed - Reinitialize MAC...
1970-01-01 00:08:09     Critical     T002.0     SYNC Timing Synchronization failure - Failed to acquire FEC framing
1970-01-01 00:08:08     Notice     M572.0     Ds Lock Failed - Reinitialize MAC...
1970-01-01 00:08:08     Critical     T002.0     SYNC Timing Synchronization failure - Failed to acquire FEC framing
1970-01-01 00:08:06     Notice     M572.0     Ds Lock Failed - Reinitialize MAC...
1970-01-01 00:08:05     Critical     T002.0     SYNC Timing Synchronization failure - Failed to acquire FEC framing
1970-01-01 00:08:04     Notice     M572.0     T1 No Ucd Timeout - Reinitialize MAC...
1970-01-01 00:08:04     Critical     U001.0     No UCD's Received - Timeout
1970-01-01 00:07:54     Notice     M572.0     T1 No Ucd Timeout - Reinitialize MAC...
1970-01-01 00:07:54     Critical     U001.0     No UCD's Received - Timeout
1970-01-01 00:07:43     Critical     T002.0     SYNC Timing Synchronization failure - Failed to acquire FEC framing
1970-01-01 00:07:41     Notice     M572.0     Ds Lock Failed - Reinitialize MAC...
1970-01-01 00:07:41     Notice     M572.0     T1 No Ucd Timeout - Reinitialize MAC...
1970-01-01 00:07:41     Critical     U001.0     No UCD's Received - Timeout
1970-01-01 00:07:30     Notice     M572.0     T1 No Ucd Timeout - Reinitialize MAC...
1970-01-01 00:07:30     Critical     U001.0     No UCD's Received - Timeout
1970-01-01 00:07:20     Notice     M572.0     Ds Lock Failed - Reinitialize MAC...
1970-01-01 00:07:17     Critical     T002.0     SYNC Timing Synchronization failure - Failed to acquire FEC framing
1970-01-01 00:07:16     Notice     M572.0     Ds Lock Failed - Reinitialize MAC...
1970-01-01 00:07:16     Critical     T001.0     SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
1970-01-01 00:07:12     Critical     T002.0     SYNC Timing Synchronization failure - Failed to acquire FEC framing
1970-01-01 00:07:11     Critical     T001.0     SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
1970-01-01 00:07:10     Notice     M572.0     T1 No Ucd Timeout - Reinitialize MAC...
1970-01-01 00:07:10     Critical     U001.0     No UCD's Received - Timeout
1970-01-01 00:06:59     Notice     M572.0     T1 No Ucd Timeout - Reinitialize MAC...
1970-01-01 00:06:59     Critical     U001.0     No UCD's Received - Timeout
1970-01-01 00:06:49     Notice     M572.0     T1 No Ucd Timeout - Reinitialize MAC...
1970-01-01 00:06:49     Critical     U001.0     No UCD's Received - Timeout
1970-01-01 00:06:38     Notice     M572.0     T1 No Ucd Timeout - Reinitialize MAC...
1970-01-01 00:06:38     Critical     U001.0     No UCD's Received - Timeout
1970-01-01 00:06:27     Notice     M572.0     T1 No Ucd Timeout - Reinitialize MAC...
1970-01-01 00:06:27     Critical     U001.0     No UCD's Received - Timeout
1970-01-01 00:06:17     Notice     M572.0     T1 No Ucd Timeout - Reinitialize MAC...
1970-01-01 00:06:17     Critical     U001.0     No UCD's Received - Timeout
1970-01-01 00:06:06     Notice     M572.0     Ds Lock Failed - Reinitialize MAC...
1970-01-01 00:06:05     Notice     M572.0     T1 No Ucd Timeout - Reinitialize MAC...
1970-01-01 00:06:05     Critical     U001.0     No UCD's Received - Timeout
1970-01-01 00:05:55     Notice     M572.0     T1 No Ucd Timeout - Reinitialize MAC...
1970-01-01 00:05:54     Critical     U001.0     No UCD's Received - Timeout
1970-01-01 00:05:44     Notice     M572.0     T1 No Ucd Timeout - Reinitialize MAC...
1970-01-01 00:05:44     Critical     U001.0     No UCD's Received - Timeout
1970-01-01 00:05:33     Notice     M572.0     T1 No Ucd Timeout - Reinitialize MAC...
1970-01-01 00:05:33     Critical     U001.0     No UCD's Received - Timeout
1970-01-01 00:05:23     Notice     M572.0     T1 No Ucd Timeout - Reinitialize MAC...
1970-01-01 00:05:23     Critical     U001.0     No UCD's Received - Timeout
1970-01-01 00:05:12     Notice     M572.0     T1 No Ucd Timeout - Reinitialize MAC...
1970-01-01 00:05:12     Critical     U001.0     No UCD's Received - Timeout
1970-01-01 00:05:02     Notice     M572.0     Ds Lock Failed - Reinitialize MAC...
1970-01-01 00:05:01     Notice     M572.0     T1 No Ucd Timeout - Reinitialize MAC...
1970-01-01 00:05:01     Critical     U001.0     No UCD's Received - Timeout

In the telenet, I am getting:

Code:
******************************************
            DOWNSTREAM STATUS
******************************************
  Tuner Frequency = 530750000 Hz
   Carrier Offset = -101 Hz
      Symbol rate = 5056941 sym/sec
              SNR = 23 dB
         QAM Mode = QAM64
        Tuner AGC = 0xfff00000
           IF AGC = 0x16de1395
      Power Level = -5 dB
              QAM = LOCKED
              FEC = LOCKED
******************************************

Non-Vol Settings successfully written to the device.

@@@@@ In ResetRngState, fRemainingInitRngPowerSteps 17

mot_scanList: Setting override freq @ 0
Attempting Downstream FEC lock @ freq= 538750000 Hz, QAM64/256
CM> Attempting Downstream FEC lock @ freq= 546750000 Hz, QAM64/256
Favorite[0].freq = 114000000
Attempting Downstream FEC lock @ freq= 114000000 Hz, QAM64/256

******************************************
            DOWNSTREAM STATUS
******************************************
  Tuner Frequency = 114000000 Hz
   Carrier Offset = 4 Hz
      Symbol rate = 6952000 sym/sec
              SNR = 38 dB
         QAM Mode = QAM256
        Tuner AGC = 0xfff00000
           IF AGC = 0x167b7e76
      Power Level = -3 dB
              QAM = LOCKED
              FEC = LOCKED
******************************************

CM> Non-Vol Settings successfully written to the device.

@@@@@ In ResetRngState, fRemainingInitRngPowerSteps 17

mot_scanList: Setting override freq @ 0
Go back to 1st favorite
Attempting Downstream FEC lock @ freq= 554750000 Hz, QAM64/256
Attempting Downstream FEC lock @ freq= 562750000 Hz, QAM64/256

******************************************
            DOWNSTREAM STATUS
******************************************
  Tuner Frequency = 562750000 Hz
   Carrier Offset = -101 Hz
      Symbol rate = 5056941 sym/sec
              SNR = 24 dB
         QAM Mode = QAM64
        Tuner AGC = 0xfff00000
           IF AGC = 0x17c43624
      Power Level = -7 dB
              QAM = LOCKED
              FEC = LOCKED
******************************************

CM> Non-Vol Settings successfully written to the device.

@@@@@ In ResetRngState, fRemainingInitRngPowerSteps 17

etc
etc
etc

If I ignore the T1, it hangs and doesn't try to get the UPSTREAM. I tried to take my friend's mac address (I changed the vendor, serial, etc), and I also tried with different mac addresses. I almost bruteforced all possible configuration, BPI disable / enabled / BPI+, etc.
I was wondering if it is not working because the sb5101 is *not* DOCSIS 3.0 compatible ? I don't see any special message in the logs, so I'm kind of lost. Note that I am pretty sure that the ISP doesn't use any big security and I am sure that the line works good, since my friend gets a pretty big signal.

Thanks for your help
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#2
all D2 modems are backwards compatible with D3..
Knowledge=Power
Reply
#3
Tiny ISP's sometimes have a much tighter security, so if the mac isn't on the list you get nothing. You said you used the provisioned mac on the hax modem did you get perm auth or is it just ranging without locking on a channel? Haxorware diag will do that in some areas here...never lock just range because the ISP's can see it during the initial handshake and boot it immediately
Reply
#4
(28-09-2012, 11:33 PM)southernyankey1970 Wrote: Tiny ISP's sometimes have a much tighter security, so if the mac isn't on the list you get nothing. You said you used the provisioned mac on the hax modem did you get perm auth or is it just ranging without locking on a channel? Haxorware diag will do that in some areas here...never lock just range because the ISP's can see it during the initial handshake and boot it immediately

Thanks to both of you for your replies.
I am using my friend's mac address, so it's a registered one. It sounds like it doesn't lock as you are saying, despite it writes QAM = LOCKED, FEC = LOCKED in the terminal. Btw, ISP hasn't disabled the SNMP, so I don't believe they implemented off the hook countermeasures, but I might be wrong.


@ABMJR: D3 are backward compatible to D2, makes more sense, doesn't it ?

So there is no solution ?
Reply
#5
did you just use the mac or did you get the mac with the full certs? if your isp is bpi+ then you cannot use only the mac...
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