DHCP Renew Error & Disconnects

[Lewis31]

I have viewed other questions but the answers don't seem to resolve my issues. I am seeing reoccurring disconnects around the same time period each night ~2100-2300. 

My Hub3 also has a solid red light on the front and is not in modem mode. 

5 wireless and 1 ethernet connection. 

Output from the Router Status page.

24/09/2022 21:34:2	critical	No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.0;
24/09/2022 11:05:23	notice	DHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt057-b.cm modified;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.0;
24/09/2022 11:05:23	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.0;
21/09/2022 22:07:32	critical	No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.0;
20/09/2022 23:05:23	notice	DHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt057-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/09/2022 23:05:23	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/09/2022 13:34:12	critical	No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.0;
17/09/2022 11:05:23	notice	DHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt057-b.cm modified;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.0;
17/09/2022 11:05:23	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.0;
16/09/2022 20:26:10	critical	No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.0;

Downstream bonded channels

Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID

1	331000000	-3.9	40	256 qam	25
2	203000000	-2.9	40	256 qam	9
3	211000000	-3	40	256 qam	10
4	219000000	-2.9	40	256 qam	11
5	227000000	-3.2	40	256 qam	12
6	235000000	-3.5	40	256 qam	13
7	243000000	-3.7	40	256 qam	14
8	251000000	-3.7	40	256 qam	15
9	259000000	-3.5	40	256 qam	16
10	267000000	-3.2	40	256 qam	17
11	275000000	-3.7	40	256 qam	18
12	283000000	-3.5	40	256 qam	19
13	291000000	-3.7	40	256 qam	20
14	299000000	-3.7	40	256 qam	21
15	307000000	-3.7	40	256 qam	22
16	315000000	-3.5	40	256 qam	23
17	323000000	-3.9	40	256 qam	24
18	339000000	-4.2	40	256 qam	26
19	347000000	-4.5	40	256 qam	27
20	355000000	-4.2	40	256 qam	28
21	363000000	-4.4	40	256 qam	29
22	371000000	-4.7	38	256 qam	30
23	379000000	-4.7	40	256 qam	31
24	387000000	-5	40	256 qam	32

Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID

1	36600000	50.2	5120	16 qam	3
2	23600000	48	5120	32 qam	5
3	30100000	48.2	5120	16 qam	4
4	43100000	49	5120	64 qam	2
5	49600000	49	5120	32 qam	1

[jem101]

OK well firstly the solid red light on the hub is an indication of it overheating, or at least, it thinks it is overheating - either way it needs replacing to be on the safe side, give it a day or so and a member of the forum team will get to this thread and offer to contact you and sort out a replacement.

Secondly, forget about the scary DHCP messages, they are actually quite normal, for reasons which are far too boring to go into now. More importantly are the 'No Ranging Response' messages, but even those are only one every two days for so, which is not uncommon.

No the real problem is your upstream statistics, now I've seen worse, but you have a slight cable connection issue somewhere between the hub and the street cabinet, probably a bad joint which is letting interference (noise) in. It'll need to be checked and sorted by a technician visit -ideally the same one who delivers the replacement hub.

[Tom_W1]

Hi @Lewis31 thanks for your post here in the Community although I'm sorry to hear of your concerns raised.

Are you able to kindly try the following to resolve the issue with the red light please, and let me know if this still doesn't work for you?

Please try:

• Turn the power switch off on the back of the Hub.
• Ensure the Hub is upright, in a well-ventilated location, and, if at all possible, out of direct sunlight.
• Then use the power switch to turn the unit back on. The Hub should now operate normally.
If this doesn't work, please let us know.

Many thanks

[Lewis31]

Hi Tom,

I have tried as you suggested previously, the solid red light is continuous even after restarts. I have even tried just leaving it off for longer periods of time as well but the same issue.

Lewis

[Tom_W1]

Hi Lewis, thanks a lot for your reply.

No problem at all - please allow me to send you a PM so I can look to get the Hub replaced for you.

Kindly expect the PM to arrive shortly and respond directly when you can!
Many thanks