VPN for work keeps dropping

[owensteam]

Hi there,

My VPN for work keeps dropping and its only from home, which I moved into 2 weeks ago. All other locations are fine with the VPN.

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

1	139000000	7.3	37	256 qam	1
2	147000000	7.3	38	256 qam	2
3	155000000	7.5	38	256 qam	3
4	163000000	7.4	38	256 qam	4
5	171000000	7.4	37	256 qam	5
6	179000000	7.3	37	256 qam	6
7	187000000	7.5	37	256 qam	7
8	195000000	7.4	37	256 qam	8
9	203000000	7.1	37	256 qam	9
10	211000000	6.8	37	256 qam	10
11	219000000	6.5	38	256 qam	11
12	227000000	6.3	37	256 qam	12
13	235000000	6.3	38	256 qam	13
14	243000000	6.8	38	256 qam	14
15	251000000	7.3	38	256 qam	15
16	259000000	7.5	38	256 qam	16
17	267000000	7.5	38	256 qam	17
18	275000000	7.5	38	256 qam	18
19	283000000	7.5	38	256 qam	19
20	291000000	7.5	38	256 qam	20
21	299000000	7.5	38	256 qam	21
22	307000000	7.5	38	256 qam	22
23	315000000	7.9	38	256 qam	23
24	323000000	8	38	256 qam	24

Downstream bonded channels

Channel Locked Status RxMER (dB) Pre RS Errors Post RS Errors

1	Locked	37.6	187	0
2	Locked	38.6	79	0
3	Locked	38.9	13	0
4	Locked	38.6	26	0
5	Locked	37.6	16	0
6	Locked	37.6	45	0
7	Locked	37.6	59	0
8	Locked	37.6	59	0
9	Locked	37.6	61	0
10	Locked	37.6	84	0
11	Locked	38.6	83	0
12	Locked	37.6	75	0
13	Locked	38.6	71	0
14	Locked	38.6	60	0
15	Locked	38.9	53	0
16	Locked	38.9	53	0
17	Locked	38.9	65	0
18	Locked	38.9	50	0
19	Locked	38.9	69	0
20	Locked	38.9	60	0
21	Locked	38.6	69	0
22	Locked	38.9	73	0
23	Locked	38.9	62	0
24	Locked	38.9	91	0

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

1	23600000	45.8	5120	64 qam	10
2	30100000	45.5	5120	64 qam	8
3	49600000	45	5120	64 qam	5
4	36600000	45	5120	64 qam	7
5	43100000	44.8	5120	64 qam	6

If anyone can see anything that might be causing an issue I'd really appreciate it

[owensteam]

Upstream bonded channels
Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts
1 ATDMA 0 0 0 0
2 ATDMA 0 0 0 0
3 ATDMA 0 0 0 0
4 ATDMA 0 0 0 0
5 ATDMA 0 0 0 0


Network Log
Time Priority Description
03/10/2022 10:49:57 notice LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
03/10/2022 10:43:37 critical Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
03/10/2022 10:43:35 Warning! Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
03/10/2022 10:43:29 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
03/10/2022 10:43:29 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
03/10/2022 10:43:29 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
03/10/2022 10:43:28 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
03/10/2022 10:41:19 notice LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
03/10/2022 07:57:57 critical No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
03/10/2022 00:22:14 Error DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/09/2022 12:04:31 critical No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/09/2022 07:54:28 Error DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
25/09/2022 18:24:49 critical No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
25/09/2022 16:43:39 notice NOTICE ATOM is restarted due to Kernel/oops panic as part of Self Healing Mechanism ;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
25/09/2022 04:30:24 critical No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
25/09/2022 03:49:59 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 21:46:58 critical No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
21/09/2022 14:49:58 Error DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/09/2022 17:48:16 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/09/2022 17:48:16 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

[legacy1]

Does it drop with hub in modem mode?

[owensteam]

I dont have a LAN cable for my device so would not easy to test.

I've been pinging with another device to 8.8.8.8 and it seems pretty good with the odd slow ping but not at the same time as when the VPN drops, so don't think that's related.

[legacy1]

But its easy to get a cable to test.

3m - transparent - 1 pieces - CAT.6 Ethernet Lan Network Cable RJ45 | 10/100/1000/Mbit/s | Patchcabe...

https://www.amazon.co.uk/dp/B093WVS6TG/?coliid=I1R1019O53YUZE&colid=1BZ90MP5AMKFF&psc=1&ref_=lv_ov_l...

Or you could jump right to a new router with 1Gb ports and put hub in modem mode for wifi.

[owensteam]

sorry - my device doesnt have an RJ45 port, should have made that clearer.

Do you know if there's anything wrong with the numbers I posted? I've no idea what a good SNR would be. doesnt look from the logs that I'm getting any disconnects.

Is there a test I could run from a device that is fine to see if I get packet loss or latency over a long period of time (say 30 minutes) that you'd recommend?

[legacy1]

---

@owensteam wrote:

Do you know if there's anything wrong with the numbers I posted? I've no idea what a good SNR would be. doesnt look from the logs that I'm getting any disconnects.

---

Looks good you say you have done a ping test and thats fine.

Problem is likely wifi with the hub a  better wifi router will help.

you can run a custom test here

Packet Loss Test - Test Your Connection Online | DeviceTests

Network Packet Size = 900

Sending Frequency = 300

Test Length = 60

Maximum Delay Between Packets =1

[owensteam]

Everything is normal, not sure why this vpn is dropping. Makes no sense

[jbrennand]

JFYI

Any device can be connected on ethernet cable to do these tests - you just need a RJ45 adapter to any port your device does have.

I have them for the UBB3, USBc, Thunderbolt, Firewire and lightning ports - on all my Apple devices - all work well

[owensteam]

Hello,

I have an adapter and have set to airplane mode so it’s just the wired comnection. Exactly the same issue still happening.