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Forum Discussion
Hoopladoodle
Oct 17, 2021Tutor
Connected, Online, but ALL Devices Offline? CBK752/CBR750 Cable Modem w/ Spectrum
Hi all, I’ve been back and forth with Netgear CS and Spectrum for the last couple weeks to figure out why the Orbi WiFi 6 model CBR750 (CBK752-100NAS) I purchased to replace the Spectrum provid...
Hoopladoodle
Oct 18, 2021Tutor
Screenshot of the up/downstream bonded channels attached as in-post photo doesn't seem to work:
FURRYe38
Oct 18, 2021Guru - Experienced User
Seeing some correctable and un-correctables, something that the ISP needs to look into.
Also 20 feet is too close between the RBS and RBR. 30 feet or more is recommended in between RBR and RBS📡 to begin with depending upon building materials when wirelessly connected.
What channels are most of your closest wifi neighbors using on 2.4 and 5Ghz?
What channels are you using on the CBR?
You can leave the MTU value at 1500.
I would leave DNS at ISP default for now.
- vkdeltaOct 19, 2021NETGEAR Employee Retired
pls paste the Event logs and network logs
- HoopladoodleOct 21, 2021Tutor
Hello again,
Sorry about the delayed response but oddly enough so far there haven't been any bizarre outages since a couple days after the direct power and internet/phone line were reconfigured and cable modem reprovisioned by Spectrum! The last change I made per Netgear CS's recommendation was changing the MTU size to 1475 on 10/16 which was the first MTU size they changed it to when I still had random unexplainable outages. I have not yet moved the satellite and cable modem further than the ~20 feet yet but will today just for better performance in general.
DNS is still currently on 1.1.1.1/1.0.0.1, 2.4GHz on channel 11, and 5GHz on channel 44, which have been there since my first or second call with Netgear CS. Regarding WiFi Neighbors, how would I go about checking their channels? Do you mean my literal neighbors' WiFi or just devices within my network?
For vkdelta I have the Event Logs and Logs attached. For Event Logs, we stopped experiencing any problems beginning on the 17th/18th of October, and before that it only shows a number of "CM-STATUS message sent. Event Type Code: 5" for October 16th. For the Logs, whenever the "online-but-offline" outages occurred they only showed the DHCP lines shown, nothing out of the ordinary.
Thank you both in advance!- HoopladoodleOct 21, 2021Tutor
vkdelta
Logs attached as I could not attach more than one image to my initial post.
Thanks in advance!- vkdeltaOct 21, 2021NETGEAR Employee Retired
can you please press "clear log" on the DOCSIS event log page and monitor for 24 hours and re-post the logs.
which ISP are you on?
there are LOT of T3 timeouts which is causing WAN to disconnect.
- FURRYe38Oct 27, 2021Guru - Experienced User
Any progress on this?
Hoopladoodle wrote:
Hello again,
Sorry about the delayed response but oddly enough so far there haven't been any bizarre outages since a couple days after the direct power and internet/phone line were reconfigured and cable modem reprovisioned by Spectrum! The last change I made per Netgear CS's recommendation was changing the MTU size to 1475 on 10/16 which was the first MTU size they changed it to when I still had random unexplainable outages. I have not yet moved the satellite and cable modem further than the ~20 feet yet but will today just for better performance in general.
DNS is still currently on 1.1.1.1/1.0.0.1, 2.4GHz on channel 11, and 5GHz on channel 44, which have been there since my first or second call with Netgear CS. Regarding WiFi Neighbors, how would I go about checking their channels? Do you mean my literal neighbors' WiFi or just devices within my network?
For vkdelta I have the Event Logs and Logs attached. For Event Logs, we stopped experiencing any problems beginning on the 17th/18th of October, and before that it only shows a number of "CM-STATUS message sent. Event Type Code: 5" for October 16th. For the Logs, whenever the "online-but-offline" outages occurred they only showed the DHCP lines shown, nothing out of the ordinary.
Thank you both in advance!- HoopladoodleOct 27, 2021Tutor
Unfortunately nothing quantifiable since I am out of town until mid-November. I still haven't been able to figure out why Anywhere Access will not connect whenever there is those aforementioned "no-ring-light" outages that otherwise appear normal according to the cable modem's status lights, but so far it's only happened once since I left town and my sister was able to get it up and running by rebooting it a couple times.
When I'm back home I'll continue monitoring and post Logs and Event Logs as the issues arise, but so far I am still leaning into believing its Spectrum's service acting funky with the Orbi making it think its online despite it not being able to load webpages without it saying its not connected to the internet. If it becomes a big enough problem I'll video call my sister to show her how to access the Orbi Login and get us a copy of the logs, but until then I'll wait.