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Forum Discussion
Orbi CBR750 Xfinity speed drop every 3 days
Looking over the forums, it seems a lot of people are having issues with the CBR750 and Xfinity. In my particular case, every 3 days, my connection speed drops to nothing and I have to reboot.
It's been happening since November, but I only started tracking the issue since February. What I've found is this.
I say every 3 days, but on average it's every 2 days and 20 hours this message appears in my event log:
Notice (6) | DS profile config update. DS Chan ID: 193.
Every single time this appears, without fail, I have to restart the modem. It then works nicely for another 2 days 20 hours, and happens again.
I just had an Xfinity engineer here, checking the lines inside and out and finding nothing wrong. However, he told me that Netgear is a topic of discussion within Xfinity. Many of the calls they have been getting are Netgear specific.
He couldn't tell me what this DS profile config update is, or where it's coming from, but thinks it's conflicting with the Netgear firmware. He suggested finding a version of the firmware prior to November, when the problem started, and seeing if I can revert to that. I don't know how to find such a thing, tho, so can't try it.
On rebooting, there is an additional pair of messages that appear in the event log:
Notice | TLV-11 - unrecognized OID
Critical | Config File Rejected due to Invalid or Unexpected TLV 11
This makes me think perhaps a firmware update changed the format of a config file, and perhaps the source of that DS profile config update hasn't take it into account? I don't know, it's speculation.
As FURRYe38 asked, here are my deets.
Firmware Version V4.6.14.4_2.3.12
Speed Tier 200 Mbps
Okay... it seems I can't upload the txt dump of the cable diagnostics. Odd. Here's a copy paste:
| 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: [green] |
| Downstream Status: [green] |
| Upstream Status: [green] |
| Startup Procedure | ||||||||||||||||||
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| Downstream Bonded Channels | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Upstream Bonded Channels | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Downstream OFDM Channels | |||||||||||||||||||||||||||||||||
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| Upstream OFDMA Channels | ||||||||||||||||||
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| Current System Time: Sat Mar 18 13:41:08 2023 |
| System Up Time 01:56:33 |
Unfortunately I can't share my event log. I'm getting an error in the browser console, trying to view the event log:
2 Replies
What speed package do you pay for from the ISP up and down? 800Mbps or 1.2Gb?
What browser are you using? Does this happen in a different browser when you try to collect the event logs?
Has a factory reset and setup from scratch been performed since last FW update? A complete pull of the power adapters for a period of time after the factory reset then walk thru the setup wizard and setup from scratch with a wired PC and web browser. Recommend setting the default DHCP IP address pool range to the following after applying and a factory reset: 192.168.#.100 to 192.168.#.200.
https://kb.netgear.com/24089/How-do-I-specify-the-pool-of-IP-addresses-assigned-by-my-Nighthawk-router
I would power OFF the ISP modem for 1 minute. Factory reset the Orbi router and power it off. Power ON the ISP modem and let it sync. Then power ON the Orbi router and walk thru the setup wizard again using a wired PC and a web browser.
Press the back reset button for 15 seconds then release.
https://kb.netgear.com/31486/How-do-I-reset-my-Orbi-system-to-factory-default-settings
https://kb.netgear.com/000062081/How-do-I-erase-the-configuration-settings-on-my-Orbi-WiFi-SystemMost Critical, Errors or Warnings seen in the Event Log needs to be reviewed by the ISP and resolved.
Hello Gangrel ,
Welcome to the NETGEAR Community!
I understand that you are experiencing network connection issues with your CBR750.
Please provide the following information so I can endorse you to our experts to further analyze this issue:
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Please provide this information as soon as possible!
I look forward to hearing from you!
Best,
Kevin
Community Team
