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Internet failure
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Old 19-03-2018, 16:19   #31
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Re: Internet failure

Quote:
Originally Posted by Itshim View Post
always search the net for them if really get bored in the evening

Hard to do when the internet is off.

I've been having lots of random losses of connection. They say my connection is solid, then come back and admit it's all down to "network problems".









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Old 19-03-2018, 20:36   #32
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Re: Internet failure

I have seen similar looking graphs when the local area has had an SNR fault..... which would be consistent with the mention of SNR fault. In my area on the few occasions this has happened they have been on it very quickly.
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Old 26-03-2018, 17:48   #33
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Re: Internet failure

It's still at it. getting to be most days now. Always "a local network failure".





Over an hour off today.....



26/03/2018 12:12:33 GMT 26/03/2018 12:12:33 GMT Critical (3) 82000200 No Ranging Response received - T3 time-out
26/03/2018 12:12:26 GMT 26/03/2018 12:12:26 GMT Error (4) 68000407 TOD established
Time Not Established Time Not Established Notice (6) 84000510 Downstream Locked Successfully
Time Not Established Time Not Established Error (4) 68000409 TOD not Established
26/03/2018 11:03:49 GMT 26/03/2018 11:03:49 GMT Error (4) 68000409 TOD not Established
26/03/2018 11:03:36 GMT 26/03/2018 11:03:36 GMT Critical (3) 82000400 Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out
26/03/2018 11:03:07 GMT 26/03/2018 11:03:07 GMT Critical (3) 82000400 Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out
26/03/2018 11:02:37 GMT 26/03/2018 11:02:37 GMT Critical (3) 82000400 Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out
26/03/2018 11:02:05 GMT 26/03/2018 11:02:05 GMT Critical (3) 82000400 Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out
26/03/2018 10:59:57 GMT 26/03/2018 10:59:57 GMT Warning (5) 84020200 Lost MDD Timeout
26/03/2018 10:59:56 GMT 26/03/2018 10:59:56 GMT Warning (5) 84020200 Lost MDD Timeout
26/03/2018 10:59:56 GMT 26/03/2018 10:59:56 GMT Warning (5) 84020200 Lost MDD Timeout
26/03/2018 10:59:56 GMT 26/03/2018 10:59:56 GMT Warning (5) 84020200 Lost MDD Timeout
26/03/2018 10:59:56 GMT 26/03/2018 10:59:56 GMT Warning (5) 84020200 Lost MDD Timeout
26/03/2018 10:59:56 GMT 26/03/2018 10:59:56 GMT Warning (5) 84020200 Lost MDD Timeout
26/03/2018 10:59:56 GMT 26/03/2018 10:59:56 GMT Warning (5) 84020200 Lost MDD Timeout
26/03/2018 10:59:56 GMT 26/03/2018 10:59:56 GMT Warning (5) 84020200 Lost MDD Timeout
26/03/2018 10:59:51 GMT 26/03/2018 10:59:51 GMT Critical (3) 84000500 SYNC Timing Synchronization failure - Loss of Sync
26/03/2018 10:59:50 GMT 26/03/2018 10:59:50 GMT Critical (3) 84000500 SYNC Timing Synchronization failure - Loss of Sync
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Old 26-03-2018, 18:23   #34
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Re: Internet failure

last time I checked t4 timeouts meant modem fault (as in the shub)
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Old 26-03-2018, 19:47   #35
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Re: Internet failure

From General Maximus

Quote:
DOCSIS T1, T2, T3 & T4 Timeouts

This is a handy summary of the various T1, T2, T3 and T4 timeout errors you will find in a DOCSIS network. T3 and T4 timeouts are described in much more detail elsewhere in this blog, however this post provides a high level overview of the various timeouts as a reference. Thanks to baranek110 for the tutorial located on Cable-Modem's Blog.

T1 Timeout ( No UCD’s received )

Explanation: The cable modem has not received any periodic Upstream Channel Descriptor (UCD) messages from the CMTS within the timeout period. This error message is DOCSIS event message is U01.0, Upstream Channel Descriptor.

T2 Timeout ( No Maintenance Broadcasts for Ranging opportunities received )

Explanation: The cable modem did not receive a broadcast maintenance opportunity in which to transmit a Ranging Request (RNG-REQ) within the T2 timeout period (approximately 10 seconds). The cable modem is resetting its cable interface and restarting the registration process. This error message is DOCSIS event message is R01.0, Ranging Request.

T3 Timeout ( Ranging Request Retries Exhausted )

Explanation: The cable modem has sent 16 Ranging Request (RNG-REQ) messages without receiving a Ranging Response (RNG-RSP) message in reply from the CMTS. The cable modem is therefore resetting its cable interface and restarting the registration process. This typically is caused by noise on the upstream that causes the loss of MAC-layer messages. Noise could also raise the signal-to-noise ratio (SNR) on the upstream to a point where the cable modem’s power level is insufficient to transmit any messages. If the cable modem cannot raise its upstream transmit power level to a level that allows successful communication within the maximum timeout period, it resets its cable interface and restarts the registration process. This error message is DOCSIS event message is R03.0, Ranging Request.

T4 Timeout ( Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received )

Explanation: The cable modem did not received a station maintenance opportunity in which to transmit a Ranging Request (RNG-REQ) message within the T4 timeout period (30 to 35 seconds). The cable modem is resetting its cable interface and restarting the registration process. Typically, this indicates an occasional, temporary loss of service, but if the problem persists, check for possible service outages or maintenance activity on this particular headend system. This error message is DOCSIS event message is R04.0, Ranging Request.
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