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Forum Discussion
CAX 80 Upload Issues
I replaced the Xfinity-supplied modem/router with a CAX80. I've noticed that I'm not able to upload files of any size via a browser. The only exception is when I'm logged into my company VPN. This is consistent across multiple devices and when I'm using WiFi and wired connection. I'm not sure what I should check in order to troubleshoot.
Hardware version: 1.0.1
Firmware version: 2.1.5.2
Cable Firmware version: 1.02.08
3 Replies
Please post a copy and paste of the modems connection status and event log page.
https://kb.netgear.com/30007/How-do-I-obtain-the-cable-connection-information-from-a-NETGEAR-cable-modem-modem-router
https://kb.netgear.com/30008/How-do-I-view-or-clear-the-event-logs-on-my-NETGEAR-cable-modem-or-modem-routerWhat channel configurations are currently set on the router?
Try disabling the following and see:
Armor, Smart Parental Controls or Traffic Meter.Armor, Parental Controls and Meter are all turned off.
Cable Diagnostic
Status: Good
Action: Your setup looks fine. If you are still experience an internet issue, the Netgear Cable Knowledge Base can provide additional troubleshooting info.
Internet Access: Good
Downstream Status: Good
Downstream Power Level: Good
Downstream SNR: Good
Upstream Status: Good
Upstream Power Level: Good
Current time: Mon Apr 01 09:17:11 2024Startup Procedure
Acquire Downstream Channel: 549 MHz Locked
Connectivity State: OK Operational
Boot State: OK Operational
Security: Enabled BPI+
Downstream Bonded Channels
Channel LockedStatus Modulation ChannelID Frequency Power SNR Correctables Uncorrectables
1 Locked 256 QAM 20 549000000 Hz 4.6 dBmV 43.5 dB 8448 8107
2 Locked 256 QAM 13 507000000 Hz 4.5 dBmV 43.7 dB 10244 10367
3 Locked 256 QAM 14 513000000 Hz 4.5 dBmV 44.6 dB 9096 8351
4 Locked 256 QAM 15 519000000 Hz 4.8 dBmV 41.9 dB 11520 11138
5 Locked 256 QAM 16 525000000 Hz 5 dBmV 43.5 dB 7748 7724
6 Locked 256 QAM 17 531000000 Hz 4.6 dBmV 44.1 dB 9662 10937
7 Locked 256 QAM 18 537000000 Hz 4.5 dBmV 44 dB 8512 8327
8 Locked 256 QAM 19 543000000 Hz 4.4 dBmV 43.6 dB 10086 11941
9 Locked 256 QAM 21 555000000 Hz 4.9 dBmV 44.5 dB 11411 14473
10 Locked 256 QAM 22 561000000 Hz 5.1 dBmV 44.9 dB 8477 8203
11 Locked 256 QAM 23 567000000 Hz 4.8 dBmV 44 dB 11681 12934
12 Locked 256 QAM 24 573000000 Hz 4.8 dBmV 41.7 dB 9138 8817
13 Locked 256 QAM 25 579000000 Hz 4.9 dBmV 43.8 dB 9889 10047
14 Locked 256 QAM 26 585000000 Hz 4.9 dBmV 44.6 dB 8242 8036
15 Locked 256 QAM 27 591000000 Hz 4.9 dBmV 44.1 dB 12991 10335
16 Locked 256 QAM 28 597000000 Hz 5 dBmV 43.1 dB 7058 6721
17 Locked 256 QAM 29 603000000 Hz 5.1 dBmV 43.4 dB 9445 8193
18 Locked 256 QAM 30 609000000 Hz 4.7 dBmV 44.6 dB 6991 6841
19 Locked 256 QAM 31 615000000 Hz 4.6 dBmV 44.5 dB 6719 6518
20 Locked 256 QAM 32 621000000 Hz 4.6 dBmV 42.3 dB 6925 6876
21 Locked 256 QAM 33 627000000 Hz 4.7 dBmV 37.6 dB 6963 6469
22 Locked 256 QAM 34 633000000 Hz 4.8 dBmV 40.2 dB 6133 5663
23 Locked 256 QAM 35 639000000 Hz 4.4 dBmV 42.2 dB 5711 6315
24 Locked 256 QAM 36 645000000 Hz 4.3 dBmV 42 dB 6241 6127
25 Locked 256 QAM 37 651000000 Hz 4.2 dBmV 44.2 dB 5423 5745
26 Locked 256 QAM 38 657000000 Hz 4.1 dBmV 44.2 dB 6082 6883
27 Locked 256 QAM 39 663000000 Hz 4 dBmV 44.1 dB 6707 6880
28 Locked 256 QAM 40 669000000 Hz 4.3 dBmV 44.2 dB 5636 5477
29 Locked 256 QAM 41 675000000 Hz 4.2 dBmV 43.2 dB 6626 7248
30 Locked 256 QAM 42 681000000 Hz 3.9 dBmV 44 dB 6216 6235
31 Locked 256 QAM 43 687000000 Hz 3.8 dBmV 44 dB 5400 5169
32 Locked 256 QAM 44 693000000 Hz 3.6 dBmV 43.9 dB 6183 6588
Upstream Bonded Channels
Channel LockedStatus ChannelType ChannelID SymbolRate Frequency Power
1 Locked ATDMA 19 5120 Ksym/sec 29200000 Hz 39.0 dBmV
2 Locked ATDMA 18 5120 Ksym/sec 22800000 Hz 39.8 dBmV
3 Locked ATDMA 17 5120 Ksym/sec 16400000 Hz 40.8 dBmV
4 Locked ATDMA 20 5120 Ksym/sec 35600000 Hz 38.5 dBmV
5 Not Locked Unknown 0 0 0 0.0
6 Not Locked Unknown 0 0 0 0.0
7 Not Locked Unknown 0 0 0 0.0
8 Not Locked Unknown 0 0 0 0.0
Downstream OFDM Channels
Channel LockedStatus ProfileID ChannelID Frequency Power SNR/MER ActiveSubcarrier Unerror Correctable Uncorrectable
1 Locked 0 ,1 ,2 ,3 193 957000000 Hz 2.18 dBmV 41.5 dB 148 ~ 3947 1925226449 1111247400 3434
2 Not Locked 0 0 0 Hz 0 dBmV 0 dB 0 ~ 4095 0 0 0
Upstream OFDMA Channels
Channel LockedStatus ProfileID ChannelID Frequency Power
1 Not Locked 0 0 0 Hz 0 dBmV
2 Not Locked 0 0 0 Hz 0 dBmV
Event Log
Time Priority Description
Mon Apr 1 09:13:37 2024 Notice CM-STATUS message sent. Event Type Code: 24; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=80:cc:00:00:00:bb;CMTS-MAC=00:00:ff:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Mon Apr 1 09:12:15 2024 Notice CM-STATUS message sent. Event Type Code: 16; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=80:cc:00:00:00:bb;CMTS-MAC=00:00:ff:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Mon Apr 1 09:07:50 2024 Notice CM-STATUS message sent. Event Type Code: 24; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=80:cc:00:00:00:bb;CMTS-MAC=00:00:ff:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Mon Apr 1 09:05:14 2024 Notice CM-STATUS message sent. Event Type Code: 16; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=80:cc:00:00:00:bb;CMTS-MAC=00:00:ff:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Mon Apr 1 09:04:16 2024 Notice CM-STATUS message sent. Event Type Code: 24; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=80:cc:00:00:00:bb;CMTS-MAC=00:00:ff:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Mon Apr 1 09:02:54 2024 Notice CM-STATUS message sent. Event Type Code: 16; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=80:cc:00:00:00:bb;CMTS-MAC=00:00:ff:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Mon Apr 1 08:52:45 2024 Notice CM-STATUS message sent. Event Type Code: 24; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=80:cc:00:00:00:bb;CMTS-MAC=00:00:ff:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Mon Apr 1 08:52:03 2024 Notice CM-STATUS message sent. Event Type Code: 16; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=80:cc:00:00:00:bb;CMTS-MAC=00:00:ff:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Mon Apr 1 08:50:19 2024 Critical Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:00:00:00:bb;CMTS-MAC=00:00:ff:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Mon Apr 1 08:42:59 2024 Notice CM-STATUS message sent. Event Type Code: 24; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=80:cc:00:00:00:bb;CMTS-MAC=00:00:ff:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Mon Apr 1 08:37:14 2024 Notice CM-STATUS message sent. Event Type Code: 16; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=80:cc:00:00:00:bb;CMTS-MAC=00:00:ff:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Mon Apr 1 08:36:28 2024 Notice CM-STATUS message sent. Event Type Code: 24; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=80:cc:00:00:00:bb;CMTS-MAC=00:00:ff:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Mon Apr 1 08:33:03 2024 Notice CM-STATUS message sent. Event Type Code: 16; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=80:cc:00:00:00:bb;CMTS-MAC=00:00:ff:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Mon Apr 1 08:31:18 2024 Notice CM-STATUS message sent. Event Type Code: 24; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=80:cc:00:00:00:bb;CMTS-MAC=00:00:ff:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Mon Apr 1 08:29:59 2024 Notice CM-STATUS message sent. Event Type Code: 16; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=80:cc:00:00:00:bb;CMTS-MAC=00:00:ff:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Mon Apr 1 08:22:27 2024 Notice CM-STATUS message sent. Event Type Code: 24; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=80:cc:00:00:00:bb;CMTS-MAC=00:00:ff:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Mon Apr 1 08:20:00 2024 Notice CM-STATUS message sent. Event Type Code: 16; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=80:cc:00:00:00:bb;CMTS-MAC=00:00:ff:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Mon Apr 1 08:15:35 2024 Notice CM-STATUS message sent. Event Type Code: 24; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=80:cc:00:00:00:bb;CMTS-MAC=00:00:ff:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Mon Apr 1 08:12:01 2024 Notice CM-STATUS message sent. Event Type Code: 16; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=80:cc:00:00:00:bb;CMTS-MAC=00:00:ff:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Mon Apr 1 08:01:35 2024 Notice CM-STATUS message sent. Event Type Code: 24; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=80:cc:00:00:00:bb;CMTS-MAC=00:00:ff:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Mon Apr 1 07:55:53 2024 Notice CM-STATUS message sent. Event Type Code: 16; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2.;CM-MAC=80:cc:00:00:00:bb;CMTS-MAC=00:00:ff:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Mon Apr 1 07:48:38 2024 Notice CM-STATUS message sent. Event Type Code: 24; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=80:cc:00:00:00:bb;CMTS-MAC=00:00:ff:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Mon Apr 1 07:45:05 2024 Notice CM-STATUS message sent. Event Type Code: 16; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=80:cc:00:00:00:bb;CMTS-MAC=00:00:ff:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Mon Apr 1 07:43:05 2024 Notice CM-STATUS message sent. Event Type Code: 24; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=80:cc:00:00:00:bb;CMTS-MAC=00:00:ff:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Mon Apr 1 07:39:43 2024 Notice CM-STATUS message sent. Event Type Code: 16; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=80:cc:00:00:00:bb;CMTS-MAC=00:00:ff:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Mon Apr 1 07:20:52 2024 Notice CM-STATUS message sent. Event Type Code: 24; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=80:cc:00:00:00:bb;CMTS-MAC=00:00:ff:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Mon Apr 1 07:19:36 2024 Critical Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:00:00:00:bb;CMTS-MAC=00:00:ff:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Mon Apr 1 07:16:36 2024 Notice CM-STATUS message sent. Event Type Code: 16; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=80:cc:00:00:00:bb;CMTS-MAC=00:00:ff:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Mon Apr 1 06:39:09 2024 Critical Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:00:00:00:bb;CMTS-MAC=00:00:ff:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Mon Apr 1 06:23:05 2024 Notice CM-STATUS message sent. Event Type Code: 24; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=80:cc:00:00:00:bb;CMTS-MAC=00:00:ff:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Mon Apr 1 06:17:39 2024 Notice CM-STATUS message sent. Event Type Code: 16; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=80:cc:00:00:00:bb;CMTS-MAC=00:00:ff:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Mon Apr 1 06:13:38 2024 Notice CM-STATUS message sent. Event Type Code: 24; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=80:cc:00:00:00:bb;CMTS-MAC=00:00:ff:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Mon Apr 1 06:07:08 2024 Notice CM-STATUS message sent. Event Type Code: 16; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=80:cc:00:00:00:bb;CMTS-MAC=00:00:ff:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Mon Apr 1 05:21:40 2024 Critical Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:00:00:00:bb;CMTS-MAC=00:00:ff:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Mon Apr 1 05:21:10 2024 Notice CM-STATUS message sent. Event Type Code: 24; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=80:cc:00:00:00:bb;CMTS-MAC=00:00:ff:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Mon Apr 1 05:19:11 2024 Notice CM-STATUS message sent. Event Type Code: 16; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=80:cc:00:00:00:bb;CMTS-MAC=00:00:ff:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Mon Apr 1 05:17:42 2024 Notice CM-STATUS message sent. Event Type Code: 24; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=80:cc:00:00:00:bb;CMTS-MAC=00:00:ff:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Mon Apr 1 05:13:09 2024 Notice CM-STATUS message sent. Event Type Code: 24; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2.;CM-MAC=80:cc:00:00:00:bb;CMTS-MAC=00:00:ff:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Mon Apr 1 05:08:18 2024 Notice CM-STATUS message sent. Event Type Code: 16; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=80:cc:00:00:00:bb;CMTS-MAC=00:00:ff:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Mon Apr 1 05:07:58 2024 Notice CM-STATUS message sent. Event Type Code: 24; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=80:cc:00:00:00:bb;CMTS-MAC=00:00:ff:00:00:00;CM-QOS=1.1;CM-VER=3.1;Ok only see one Critical. Lots of notices.
However you have tons of Correctables and Un-Correctables that should be zeros.
Have the ISP check the signal and line quality UP to the modem. Be sure the ISP provisions the modem correctly.
Be sure there are no coax cable line splitters in the between the modem and ISP service box.
Be sure your using good quality RG6 coax cable up to the modem.
Start with removing any amplifiers, signal attenuators, or splitters from the coax.
From there check the line for kinks, damage, moisture in the line.
Check the connectors for improperly made ends, foil touching the copper coax line, loose connections, bad/old/cheap connectors, or corroded connections. Replace them if you do.
Be sure to power OFF the modem for 1 minute then back ON.
https://community.netgear.com/t5/Cable-Modems-Routers/General-info-and-Troubleshooting-for-Cable-Modems/m-p/1530376#M12853
https://kb.netgear.com/24311/Power-level-guidelines-for-a-NETGEAR-cable-modem-router
https://www.duckware.com/tech/solving-intermittent-cable-modem-issues.html
https://highspeed.tips/docsis-events/
