Connection issues with VRChat (RG crash, Packet loss?)

[Bamber_FM]

When playing VRChat I will consistently be unable to receive any in game notifications.
Also on joining any high population instances, my router will almost immediately crash stating

Cable Modem Reboot due to RG crash

Spoiler

Network Log

Time Priority Description

10-04-2023 21:47:17	notice	REGISTRATION COMPLETE - Waiting for Operational status
10-04-2023 21:47:10	notice	DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
10-04-2023 21:46:57	warning	DHCP WARNING - Non-critical field invalid in response ;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
10-04-2023 21:46:55	notice	Honoring MDD; IP provisioning mode = IPv4
10-04-2023 21:46:49	critical	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
10-04-2023 21:46:37	critical	Cable Modem Reboot due to RG crash
10-04-2023 21:36:34	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
10-04-2023 21:36:29	critical	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
10-04-2023 21:36:17	critical	Cable Modem Reboot due to RG crash
04-04-2023 08:02:44	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
04-04-2023 08:02:40	critical	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
04-04-2023 08:02:28	critical	Cable Modem Reboot due to power button reset
04-04-2023 02:50:00	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
04-04-2023 02:49:54	critical	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
04-04-2023 02:49:47	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
04-04-2023 02:49:40	critical	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
04-04-2023 02:49:27	critical	Cable Modem Reboot due to SW Upgrade

Spoiler

General Configuration

Network accessMaximum Number of CPEsBaseline PrivacyDOCSIS ModeConfig file

Allowed

1

Enabled

3.1

cmreg-vmdg660-bbt062-b.cm

Primary Downstream Service Flow

SFIDMax Traffic RateMax Traffic BurstMin Traffic Rate

2032

402500089 bps

42600bytes

0 bps

Primary Upstream Service Flow

SFIDMax Traffic RateMax Traffic BurstMin Traffic RateMax Concatenated BurstScheduling Type

2031

38500089 bps

42600bytes

0 bps

42600bytes

Best Effort

Spoiler

Upstream bonded channels

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

0	60300000	35	5120	QAM 64	1
1	53700000	35.3	5120	QAM 64	2
2	46200000	35.3	5120	QAM 64	3
3	39400000	35.3	5120	QAM 64	4
4	32600000	35.5	5120	QAM 64	5
5	23600000	35.5	5120	QAM 64	10

Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

0	ATDMA	0	0	0	0
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

Spoiler

Downstream bonded channels

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

1	139000000	3.1	41	QAM 256	1
2	147000000	3.1	41	QAM 256	2
3	155000000	3.1	41	QAM 256	3
4	163000000	3.1	41	QAM 256	4
5	171000000	3.2	41	QAM 256	5
6	179000000	3.3	41	QAM 256	6
7	187000000	3.4	40	QAM 256	7
8	195000000	3.5	41	QAM 256	8
9	203000000	3.5	41	QAM 256	9
10	211000000	3.4	41	QAM 256	10
11	219000000	3.6	41	QAM 256	11
12	227000000	3.7	41	QAM 256	12
13	235000000	3	41	QAM 256	13
14	243000000	3.7	41	QAM 256	14
15	251000000	3.3	41	QAM 256	15
16	259000000	3.4	41	QAM 256	16
17	267000000	3.4	41	QAM 256	17
18	275000000	3.4	41	QAM 256	18
19	283000000	3.2	41	QAM 256	19
20	291000000	3.2	40	QAM 256	20
21	299000000	3.2	40	QAM 256	21
22	307000000	3.2	40	QAM 256	22
23	315000000	3	40	QAM 256	23
24	323000000	2.9	40	QAM 256	24
25	331000000	2.7	40	QAM 256	25
26	339000000	2.8	40	QAM 256	26
27	347000000	2.7	40	QAM 256	27
28	355000000	2.7	40	QAM 256	28
29	363000000	2.7	40	QAM 256	29
30	371000000	2.8	40	QAM 256	30
31	379000000	2.8	40	QAM 256	31

Downstream bonded channels

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

1	Locked	41	4	0
2	Locked	41	6	0
3	Locked	41	7	0
4	Locked	41	7	0
5	Locked	41	8	0
6	Locked	41	8	0
7	Locked	40	17	0
8	Locked	41	14	0
9	Locked	41	27	0
10	Locked	41	29	0
11	Locked	41	33	0
12	Locked	41	32	0
13	Locked	41	37	0
14	Locked	41	36	0
15	Locked	41	56	0
16	Locked	41	50	0
17	Locked	41	65	0
18	Locked	41	64	0
19	Locked	41	103	0
20	Locked	40	114	0
21	Locked	40	157	0
22	Locked	40	162	0
23	Locked	40	212	0
24	Locked	40	248	0
25	Locked	40	299	0
26	Locked	40	353	0
27	Locked	40	444	0
28	Locked	40	490	0
29	Locked	40	572	0
30	Locked	40	611	0
31	Locked	40	760	0

[OneLeggedBandit]

Hey!

I just wanna say this bug is happening again, was fine about a week two weeks ago and now i can't go into any high pop servers with the same "Cable Modem Reboot due to RG crash" issue. need this fixed asap

[OneLeggedBandit]

additionally when i use a BT router there is no crashes what so ever. 

[Ashleigh_C]

Hi there @Bamber_FM 

Thank you so much for your post and welcome back to the community forums, it's great to have you here.

I am so sorry that you have faced this issue regarding this site, can I ask if you have noticed any issues on any other sites or connections at home?