VPN Drop Outs

I am having to reconnect my laptop Wi Fi to the internet at least daily and am experiencing VPN drop outs on Wi Fi since I have started my service with Xfinity. I have tried both 2 Gig and 5 Gig connections. I have no splitters in line with my modem. I have installed a cooling fan to cool my router (TP Link AX3000 Wi Fi 6). I have cleaned my cache on the VPN and re-booted everything numerous times. No channel interference on my router. Xfinity wiring from ground box to my location was unused for about two years. My Netgear CM100V2 modem is experiencing sync timing and ranging errors. It is possible that the fix for this is out of my hands it is definitely beyond my expertise. I appreciate any help with this matter.

Here are readings from my modem:

Time	Priority	Description
2026-07-27, 00:15:44	Error (4)	DHCP RENEW WARNING - Field invalid in response v4 option;
2026-07-26, 23:38:40	Critical (3)	Started Unicast Maintenance Ranging - No Response received - T3 time-out;
2026-07-26, 20:41:52	Error (4)	DHCP RENEW WARNING - Field invalid in response v4 option;
2026-07-26, 20:05:25	Critical (3)	Started Unicast Maintenance Ranging - No Response received - T3 time-out;
2026-07-26, 00:32:05	Error (4)	DHCP RENEW WARNING - Field invalid in response v4 option;
2026-07-25, 23:51:49	Critical (3)	Started Unicast Maintenance Ranging - No Response received - T3 time-out;
2026-07-20, 11:23:16	Error (4)	DHCP RENEW WARNING - Field invalid in response v4 option;
2026-07-20, 10:58:42	Notice (6)	DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;
Time Not Established	Warning (5)	ToD request sent - No Response received;
Time Not Established	Warning (5)	DHCP WARNING - Non-critical field invalid in response ;
Time Not Established	Notice (6)	Overriding MDD IP initialization parameters; IP provisioning mode = IPv4
Time Not Established	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;
2026-07-14, 20:16:56	Critical (3)	No Ranging Response received - T3 time-out;
Time Not Established	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;
2026-07-06, 19:54:10	Critical (3)	No Ranging Response received - T3 time-out;
2026-07-06, 19:54:04	Critical (3)	SYNC Timing Synchronization failure - Loss of Sync;
Time Not Established	Critical (3)	No Ranging Response received - T3 time-out;
Time Not Established	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
Time Not Established	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire FEC framing;
Time Not Established	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;
Time Not Established	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire FEC framing;
Time Not Established	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;
Time Not Established	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire FEC framing;
Time Not Established	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;
Time Not Established	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire FEC framing;
Time Not Established	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;
Time Not Established	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire FEC framing;
Time Not Established	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;
2026-07-03, 22:23:36	Critical (3)	No Ranging Response received - T3 time-out;
2026-07-03, 22:23:28	Critical (3)	SYNC Timing Synchronization failure - Loss of Sync;
Time Not Established	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;
2026-04-30, 07:30:47	Critical (3)	No Ranging Response received - T3 time-out;
2026-04-30, 07:30:41	Critical (3)	SYNC Timing Synchronization failure - Loss of Sync;
Time Not Established	Critical (3)	No Ranging Response received - T3 time-out;
2026-04-30, 07:29:30	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;
2026-04-30, 07:29:26	Critical (3)	Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;
2026-04-30, 07:29:26	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;
2026-04-30, 07:29:25	Critical (3)	Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;
2026-04-30, 07:29:25	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;
2026-04-30, 07:29:24	Critical (3)

Frequency start Value

This field below allows you to modify the frequency the cable modem start with its scan during initialization and registration. Enter the new start frequency and restart the cable modem for it to take effect.

Starting Frequency

<tabindex=-1>Startup Procedure</tabindex=-1>

Procedure	Status	Comment
Acquire Downstream Channel	531000000 Hz	Locked
Connectivity State	OK	Operational
Boot State	OK	Operational
Security	Enable	BPI+
IP Provisioning Mode	Override MDD	IPv4 only

<tabindex=-1>Downstream Bonded Channels</tabindex=-1>

Channel	Lock Status	Modulation	Channel ID	Frequency	Power	SNR / MER	Unerrored Codewords	Correctable Codewords	Uncorrectable Codewords
1	Locked	QAM256	20	531000000 Hz	9.7 dBmV	43.2 dB	2593874943	42	0
2	Locked	QAM256	13	483000000 Hz	9.3 dBmV	42.9 dB	2593245353	0	0
3	Locked	QAM256	14	489000000 Hz	9.4 dBmV	42.9 dB	2593233017	0	0
4	Locked	QAM256	15	495000000 Hz	9.4 dBmV	42.8 dB	2593250246	0	0
5	Locked	QAM256	16	507000000 Hz	9.6 dBmV	42.9 dB	2593253901	0	0
6	Locked	QAM256	17	513000000 Hz	9.5 dBmV	42.9 dB	2593256836	0	0
7	Locked	QAM256	18	519000000 Hz	9.5 dBmV	42.9 dB	2593265160	0	0
8	Locked	QAM256	19	525000000 Hz	9.6 dBmV	43.0 dB	2593265745	22	0
9	Locked	QAM256	21	537000000 Hz	9.6 dBmV	43.2 dB	2593270137	34	0
10	Locked	QAM256	22	543000000 Hz	9.7 dBmV	43.3 dB	2593272592	12	0
11	Locked	QAM256	23	555000000 Hz	9.7 dBmV	43.3 dB	2593276131	0	0
12	Locked	QAM256	24	561000000 Hz	9.6 dBmV	43.1 dB	2593283460	0	0
13	Locked	QAM256	25	567000000 Hz	9.7 dBmV	43.2 dB	2593283954	0	0
14	Locked	QAM256	26	573000000 Hz	9.6 dBmV	43.2 dB	2593290170	0	0
15	Locked	QAM256	27	579000000 Hz	9.6 dBmV	43.1 dB	2593289491	0	0
16	Locked	QAM256	28	585000000 Hz	9.5 dBmV	43.0 dB	2593295477	0	0
17	Locked	QAM256	29	591000000 Hz	9.4 dBmV	42.9 dB	2593302769	0	0
18	Locked	QAM256	30	597000000 Hz	9.3 dBmV	43.0 dB	2593301388	0	0
19	Locked	QAM256	31	603000000 Hz	9.3 dBmV	42.8 dB	2593308398	0	0
20	Locked	QAM256	32	609000000 Hz	9.3 dBmV	42.9 dB	2593310687	0	0
21	Locked	QAM256	33	615000000 Hz	9.1 dBmV	42.7 dB	2593317547	0	0
22	Locked	QAM256	34	621000000 Hz	9.1 dBmV	42.7 dB	2593322605	0	0
23	Locked	QAM256	35	627000000 Hz	9.1 dBmV	42.8 dB	2593318373	0	0
24	Locked	QAM256	36	633000000 Hz	9.1 dBmV	42.8 dB	2593326924	9	0
25	Locked	QAM256	37	639000000 Hz	9.1 dBmV	42.7 dB	2593330149	13	0
26	Locked	QAM256	38	645000000 Hz	9.1 dBmV	42.7 dB	2593332762	11	0
27	Locked	QAM256	39	651000000 Hz	8.9 dBmV	42.6 dB	2593340069	0	0
28	Locked	QAM256	40	657000000 Hz	8.7 dBmV	42.5 dB	2593338741	0	0
29	Locked	QAM256	41	663000000 Hz	8.7 dBmV	42.4 dB	2593348623	11	0
30	Locked	QAM256	42	669000000 Hz	8.8 dBmV	42.4 dB	2593348936	13	0
31	Locked	QAM256	43	675000000 Hz	8.6 dBmV	41.8 dB	2593367407	9	0
32	Locked	QAM256	44	681000000 Hz	8.4 dBmV	42.3 dB	2593355439	0	0

<tabindex=-1>Upstream Bonded Channels</tabindex=-1>

Channel	Lock Status	Modulation	Channel ID	Frequency	Power
1	Locked	ATDMA	17	16400000 Hz	37.0 dBmV
2	Locked	ATDMA	18	22800000 Hz	37.5 dBmV
3	Locked	ATDMA	19	29200000 Hz	38.3 dBmV
4	Locked	ATDMA	20	35600000 Hz	38.0 dBmV
5	Locked	ATDMA	21	10400000 Hz	36.3 dBmV
6	Locked	ATDMA	22	39600000 Hz	33.3 dBmV
7	Not Locked	Unknown	0	0 Hz	0.0 dBmV
8	Not Locked	Unknown	0	0 Hz	0.0 dBmV

<tabindex=-1>Downstream OFDM Channels</tabindex=-1>

Channel	Lock Status	Modulation / Profile ID	Channel ID	Frequency	Power	SNR / MER	Active Subcarrier Number Range	Unerrored Codewords	Correctable Codewords	Uncorrectable Codewords
1	Locked	0, 1, 2, 3	193	690000000 Hz	8.4 dBmV	39.5 dB	1168 ~ 2927	24117939542	19787427745	0
2	Not Locked	0	0	0 Hz	9.9 dBmV	0.0 dB	0 ~ 4095	0	0	0

<tabindex=-1>Upstream OFDMA Channels</tabindex=-1>

Channel	Lock Status	Modulation / Profile ID	Channel ID	Frequency	Power
1	Not Locked	Unknown	0	0 Hz	0 dBmV
2	Not Locked	Unknown	0	0 Hz	0 dBmV

Current System Time: Tue Jul 28 13:37:46 2026

System Up Time: 199:39:33

Cable Connection