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CBR750 losing connection
Two weeks ago my cable line was cut. Comcast came out and fixed on a Sunday, also redid part of the line back to pole. Everything worked great for a few days. On Thursday, Comcast went down for a few minutes. Ever since then my CBR750 loses internet. Sometimes I get two flashing white lights, sometimes I get a magenta ring at bottom. Rebooting always fixes issue. This is not a wifi issue, its an internet issue.
9 Replies
Please post a copy and paste of the modems event log page.
https://kb.netgear.com/30008/How-do-I-view-or-clear-the-event-logs-on-my-NETGEAR-cable-modem-or-modem-routerHave 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.
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?article=24311
https://www.duckware.com/tech/solving-intermittent-cable-modem-issues.htmlThey didn't do a good enough job of fixing the line.
Your power levels are all over the place, you have errors in the line, and your upstream is way out of spec.
They need to come out and check their work.
Have the ISP check the signal and line quality UP to the modem. Be sure the ISP provisions the modem correctly.
They checked after the repair and said it was good. Comcast today can see my modem
Be sure there are no coax cable line splitters in the between the modem and ISP service box. None
Be sure your using good quality RG6 coax cable up to the modem. yes
Be sure to power OFF the modem for 1 minute then back ON. done repeatedlyEvent log was blank
Logs:
[DHCP IP: (192.168.1.12)] to MAC address 34:3E:A4:1E:95:69, Thursday, Sep 22,2022 11:06:54
[DHCP IP: (192.168.1.12)] to MAC address 34:3E:A4:1E:95:69, Thursday, Sep 22,2022 11:06:32
[DHCP IP: (192.168.1.24)] to MAC address 50:51:A9:8E:37:47, Thursday, Sep 22,2022 11:06:27
[Admin login] from source 192.168.1.33, Thursday, Sep 22,2022 11:05:32
[DHCP IP: (192.168.1.22)] to MAC address 34:7E:5C:15:75:6E, Thursday, Sep 22,2022 11:05:32
[DHCP IP: (192.168.1.46)] to MAC address 94:9F:3E:43:D9:50, Thursday, Sep 22,2022 11:05:31
[DHCP IP: (192.168.1.34)] to MAC address 7E:8B:5D:DC:DF:D3, Thursday, Sep 22,2022 11:04:56
[Internet connected] IP address: 73.107.37.164, Thursday, Sep 22,2022 11:04:28
[Internet disconnected] Thursday, Sep 22,2022 11:04:27
[DHCP IP: (192.168.1.24)] to MAC address 50:51:A9:8E:37:47, Thursday, Sep 22,2022 11:04:23
[DHCP IP: (192.168.1.25)] to MAC address 94:9F:3E:61:9D:E8, Thursday, Sep 22,2022 11:04:15
[DHCP IP: (192.168.1.17)] to MAC address 94:9F:3E:A3:3E:1E, Thursday, Sep 22,2022 11:03:17
[DHCP IP: (192.168.1.15)] to MAC address 94:9F:3E:83:16:24, Thursday, Sep 22,2022 11:03:16
[DHCP IP: (192.168.1.45)] to MAC address 34:7E:5C:72:23:E3, Thursday, Sep 22,2022 11:03:15
[DHCP IP: (192.168.1.6)] to MAC address 78:28:CA:1F:97:28, Thursday, Sep 22,2022 11:03:14
[DHCP IP: (192.168.1.5)] to MAC address 78:28:CA:1F:96:40, Thursday, Sep 22,2022 11:03:14
[DHCP IP: (192.168.1.34)] to MAC address 7E:8B:5D:DC:DF:D3, Thursday, Sep 22,2022 11:02:41
[DHCP IP: (192.168.1.24)] to MAC address 50:51:A9:8E:37:47, Thursday, Sep 22,2022 11:01:57
[DHCP IP: (192.168.1.12)] to MAC address 34:3E:A4:1E:95:69, Thursday, Sep 22,2022 11:00:10
[DHCP IP: (192.168.1.24)] to MAC address 50:51:A9:8E:37:47, Thursday, Sep 22,2022 11:00:00
[DHCP IP: (192.168.1.21)] to MAC address 34:86:5D:30:FA:24, Thursday, Sep 22,2022 10:59:15
[DHCP IP: (192.168.1.24)] to MAC address 50:51:A9:8E:37:47, Thursday, Sep 22,2022 10:57:46
[DHCP IP: (192.168.1.12)] to MAC address 34:3E:A4:1E:95:69, Thursday, Sep 22,2022 10:56:32
[DHCP IP: (192.168.1.24)] to MAC address 50:51:A9:8E:37:47, Thursday, Sep 22,2022 10:55:23
[DHCP IP: (192.168.1.34)] to MAC address 7E:8B:5D:DC:DF:D3, Thursday, Sep 22,2022 10:54:09
[DHCP IP: (192.168.1.24)] to MAC address 50:51:A9:8E:37:47, Thursday, Sep 22,2022 10:53:01
[DHCP IP: (192.168.1.12)] to MAC address 34:3E:A4:1E:95:69, Thursday, Sep 22,2022 10:52:36What FW version is loaded on the CBR and RBS?
Can you enable email logging? https://community.netgear.com/t5/Orbi-WiFi-6-AX-and-WiFi-6E-AXE/Enable-Email-Logging-and-Router-Reboots/m-p/2231485/highlight/true#M34055
