Motorola 7540 persistent connection losses

Over the past 3 or 4 days, we have been experiencing connection losses ranging from as little as twice per day to as much as hourly. Up until now, we've had very stable connectivity. The only thing that changed on my side is the addition of a secured guest wifi login, and our main network's password.

Cable Specification Version	DOCSIS 3.0
Hardware Version	V1.0
Software Version	7540-5.7.1.36

Channel	Lock Status	Modulation	Channel ID	Freq. (MHz)	Pwr (dBmV)	SNR (dB)	Corrected	Uncorrected
1	Locked	QAM256	25	627.0	4.3	39.8	401665	320039
2	Locked	QAM256	17	579.0	4.9	40.3	442492	329218
3	Locked	QAM256	18	585.0	4.4	40.1	751515	483402
4	Locked	QAM256	19	591.0	4.1	40.1	764777	468026
5	Locked	QAM256	20	597.0	4.9	40.2	779452	481193
6	Locked	QAM256	21	603.0	4.4	40.1	768995	466327
7	Locked	QAM256	22	609.0	4.1	40.1	767229	463542
8	Locked	QAM256	23	615.0	4.9	40.1	773796	480698
9	Locked	QAM256	24	621.0	4.2	40.0	761957	458312
10	Locked	QAM256	26	633.0	5.5	40.2	763670	440052
11	Locked	QAM256	27	639.0	4.6	39.9	755591	496412
12	Locked	QAM256	28	645.0	4.5	40.0	761243	449189
13	Locked	QAM256	29	651.0	5.8	40.2	753319	429014
14	Locked	QAM256	30	657.0	4.9	40.0	759027	456211
15	Locked	QAM256	31	663.0	4.8	40.0	749292	441502
16	Locked	QAM256	32	669.0	6.1	40.1	745956	447988
Total							11499976	7111125

Channel	Lock Status	Channel Type	Channel ID	Symb. Rate (Ksym/sec)	Freq. (MHz)	Pwr (dBmV)
1	Locked	ATDMA	3	5120	22.8	45.5
2	Locked	ATDMA	2	5120	16.4	45.5
3	Locked	ATDMA	4	5120	29.2	45.8
4	Locked	ATDMA	5	5120	35.6	46.0

Below is my Event log for this morning, with private info removed.

Time	Priority	Description
Thu Sep 28 11:38:07 2023	Critical (3)	No Ranging Response received - T3 time-out;
Thu Sep 28 11:39:40 2023	Critical (3)	Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;
Thu Sep 28 11:41:44 2023	Critical (3)	No Ranging Response received - T3 time-out;
Thu Sep 28 11:43:19 2023	Critical (3)	Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;
Thu Sep 28 11:43:33 2023	Critical (3)	No Ranging Response received - T3 time-out;
Thu Sep 28 11:44:50 2023	Critical (3)	Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;
Thu Sep 28 11:45:00 2023	Critical (3)	No Ranging Response received - T3 time-out;
Thu Sep 28 11:45:53 2023	Critical (3)	Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;
Thu Sep 28 11:46:16 2023	Critical (3)	No Ranging Response received - T3 time-out;
Thu Sep 28 11:47:25 2023	Critical (3)	Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;
Thu Sep 28 11:47:33 2023	Critical (3)	No Ranging Response received - T3 time-out;
Thu Sep 28 11:48:32 2023	Critical (3)	Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;
Thu Sep 28 11:48:47 2023	Critical (3)	No Ranging Response received - T3 time-out;
Thu Sep 28 11:49:52 2023	Critical (3)	Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;
Thu Sep 28 11:50:11 2023	Critical (3)	No Ranging Response received - T3 time-out;
Thu Sep 28 11:51:26 2023	Critical (3)	Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;
Thu Sep 28 11:51:29 2023	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;
Thu Sep 28 11:51:36 2023	Warning (5)	Lost MDD Timeout;
Thu Sep 28 11:51:46 2023	Critical (3)	No UCDs Received - Timeout;;
Thu Sep 28 11:52:08 2023	Critical (3)	No Ranging Response received - T3 time-out;
Thu Sep 28 11:53:05 2023	Critical (3)	Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;
Thu Sep 28 11:53:17 2023	Critical (3)	No Ranging Response received - T3 time-out;
Thu Sep 28 11:53:30 2023	Critical (3)	Started Unicast Maintenance Ranging - No Response received - T3 time-out;
Thu Sep 28 11:54:12 2023	Critical (3)	Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;
Thu Sep 28 11:54:29 2023	Critical (3)	No Ranging Response received - T3 time-out;
Thu Sep 28 11:55:42 2023	Critical (3)	Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;
Thu Sep 28 11:55:55 2023	Critical (3)	No Ranging Response received - T3 time-out;
Thu Sep 28 11:56:30 2023	Critical (3)	Started Unicast Maintenance Ranging - No Response received - T3 time-out;
Thu Sep 28 11:57:02 2023	Critical (3)	Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;
Thu Sep 28 11:57:09 2023	Critical (3)	No Ranging Response received - T3 time-out
Thu Sep 28 11:57:21 2023	Notice (6)	Honoring MDD; IP provisioning mode = IPv6
Thu Sep 28 11:58:36 2023	Critical (3)	Started Unicast Maintenance Ranging - No Response received - T3 time-out;

Your Home Network

user_281b6d

Motorola 7540 persistent connection losses

No Responses!

New to the Community?