Lost 2.4 ghz wifi network this morning only have 5ghz

[nigelscoffield2]

Lots of error see below.

Time Priority Description

15/10/2021 10:46:23	notice	LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
13/10/2021 11:39:34	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
13/10/2021 10:53:2	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
10/10/2021 18:00:36	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
09/10/2021 22:53:2	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
06/10/2021 23:04:44	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
06/10/2021 10:53:2	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
05/10/2021 16:50:17	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
04/10/2021 19:09:45	notice	LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
03/10/2021 12:29:49	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
02/10/2021 22:53:2	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/10/2021 02:23:41	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/09/2021 21:59:24	notice	LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
29/09/2021 19:34:51	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
29/09/2021 10:53:2	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
27/09/2021 20:47:17	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
27/09/2021 18:44:43	notice	LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-

[Andrew-G]

That's what a network log commonly looks like - what matters is both the errors that crop up, the combination of errors, and the frequency.  I don't see anything in your log that would indicate a particular problem, but in any event the hub's status data shows only the quality of the cable connection, and wouldn't show anything related to wifi performance.

If you're 100% sure that the 2.4 GHz signal is not visible to devices, login to the hub and check that it hasn't been turned off, or the name changed, both of which can sometimes occur due to faults in the hub's firmware.  If that doesn't identify the problem, try doing a reset of the hub.  If after that there's clearly no 2.4 GHz signal when setting indicate there should be, then it will probably be a hardware fault with the hub's 2.4 GHz wireless chip, and you'd need a replacement hub.

[nigelscoffield2]

I checked the hub, it’s says 2.4ghz is transmitted but not visible ( all devices previously on it have dropped off).

will try a reset.

[nigelscoffield2]

Still trying to reset, failed twice so far.

[nigelscoffield2]

Not sure if I have reset router, no message when completed, Seems 2.4 has lost its individual ssid , how do I restore?

[newapollo]

Hi @nigelscoffield2 

Follow the instructions again in the link that Andrew-G sent, but remove any ethernet cables from the hub and press the pinhole reset button for a full minute.

The hub is temperamental and the 10 second reset seldom works.

[nigelscoffield2]

Engineer visit , replaced tub.

[nigelscoffield2]

New hub but erratic download speed persist.

[Martin_N]

Thank you for keeping us posted nigelscoffield2.

We're very sorry to hear that. I have taken a look on our side and everything seems to be showing okay. 

How is your service this evening?

^Martin

[nigelscoffield2]

Still random plummet in connection speed , sometimes zero which occasionally throws off some devices .