Why so many "No Ranging Response received - T3 time-out" daily events in my modem log?

Getting Internet disconnections several times throughout the day, and it so happens that they coincide with "No Ranging Response received - T3 time-out" events in my modem's log. Modem is an Arris Surfboard S34. How can this be fixed?

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EG

Expert

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116.1K Messages

2 hours ago

What do the modem's signal status values look like ? Try getting them here; http://192.168.100.1

Please copy all of the text in its entirety of the *Downstream Power Levels*, the *SNR's* (Signal to Noise Ratios), and the *Upstream Power Level* numbers and paste them into your next post.

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Aqua1ung

Regular Visitor

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7 Messages

Startup Procedure
Procedure	Status	Comment
Acquire Downstream Channel	519000000 Hz	Locked
Connectivity State	OK	Operational
Boot State	OK	Operational
Configuration File	OK
Security	Enabled	BPI+
DOCSIS Network Access Enabled	Allowed

Downstream Bonded Channels
Channel ID	Lock Status	Modulation	Frequency	Power	SNR/MER	Corrected	Uncorrectables
20	Locked	256QAM	519000000 Hz	-1.6 dBmV	40.4 dB	0	0
28	Locked	256QAM	567000000 Hz	-0.9 dBmV	40.9 dB	10	0
36	Locked	256QAM	615000000 Hz	-1.3 dBmV	40.4 dB	0	0
44	Locked	256QAM	663000000 Hz	-2.2 dBmV	40.9 dB	25	46
13	Locked	256QAM	477000000 Hz	-1.6 dBmV	40.9 dB	0	0
14	Locked	256QAM	483000000 Hz	-1.6 dBmV	43.4 dB	11	0
15	Locked	256QAM	489000000 Hz	-1.7 dBmV	40.9 dB	11	0
16	Locked	256QAM	495000000 Hz	-1.7 dBmV	40.9 dB	9	0
17	Locked	256QAM	501000000 Hz	-1.5 dBmV	40.9 dB	0	0
18	Locked	256QAM	507000000 Hz	-1.5 dBmV	40.9 dB	0	0
19	Locked	256QAM	513000000 Hz	-1.7 dBmV	40.9 dB	0	0
21	Locked	256QAM	525000000 Hz	-1.3 dBmV	40.9 dB	87	0
22	Locked	256QAM	531000000 Hz	-1.2 dBmV	40.9 dB	0	0
23	Locked	256QAM	537000000 Hz	-1.2 dBmV	43.4 dB	0	0
24	Locked	256QAM	543000000 Hz	-1.0 dBmV	43.4 dB	0	0
25	Locked	256QAM	549000000 Hz	-0.8 dBmV	40.4 dB	0	0
26	Locked	256QAM	555000000 Hz	-0.9 dBmV	40.9 dB	0	0
27	Locked	256QAM	561000000 Hz	-1.1 dBmV	40.9 dB	8	0
29	Locked	256QAM	573000000 Hz	-1.1 dBmV	43.4 dB	9	0
30	Locked	256QAM	579000000 Hz	-1.4 dBmV	40.9 dB	0	0
31	Locked	256QAM	585000000 Hz	-1.5 dBmV	40.9 dB	14	0
32	Locked	256QAM	591000000 Hz	-1.5 dBmV	40.9 dB	12	0
33	Locked	256QAM	597000000 Hz	-1.8 dBmV	40.9 dB	9	0
34	Locked	256QAM	603000000 Hz	-1.4 dBmV	40.9 dB	0	0
35	Locked	256QAM	609000000 Hz	-1.2 dBmV	40.9 dB	0	0
37	Locked	256QAM	621000000 Hz	-2.0 dBmV	40.9 dB	0	0
38	Locked	256QAM	627000000 Hz	-2.1 dBmV	40.9 dB	0	0
39	Locked	256QAM	633000000 Hz	-2.0 dBmV	40.9 dB	0	0
40	Locked	256QAM	639000000 Hz	-2.0 dBmV	40.9 dB	0	0
41	Locked	256QAM	645000000 Hz	-2.3 dBmV	40.4 dB	0	0
42	Locked	256QAM	651000000 Hz	-2.6 dBmV	40.4 dB	0	0
43	Locked	256QAM	657000000 Hz	-2.4 dBmV	40.9 dB	0	0
193	Locked	OFDM PLC	690000000 Hz	-0.9 dBmV	45.0 dB	71579446	32
194	Locked	OFDM PLC	957000000 Hz	-4.9 dBmV	43.0 dB	2001355162	2

Upstream Bonded Channels
Channel ID	Lock Status	US Channel Type	Frequency	Width	Power
2	Locked	SC-QAM	22800000 Hz	6400000	33.5 dBmV
4	Locked	SC-QAM	35600000 Hz	6400000	33.5 dBmV
3	Locked	SC-QAM	29200000 Hz	6400000	33.5 dBmV
1	Locked	SC-QAM	16400000 Hz	6400000	33.5 dBmV
41	Locked	OFDMA	36200000 Hz	44400000	33.5 dBmV

Current System Time:02/18/2026 17:29:13

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32 minutes ago

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Aqua1ung

Why so many "No Ranging Response received - T3 time-out" daily events in my modem log?

EG

Aqua1ung

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