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CR1000A Intermittent Internet drops

Hello All,

Recently I've been experiencing random intermittent internet drops every hour or so. It would recover after 5-20 seconds but it makes online gaming impossible.

The only thing suspicious I could find in the router logs is a message "[SYS] LED dim off" followed by "[SYS] LED dim on(led pattern: )" after 5 minutes. Every time my internet is down, there will be an "LED dim off" in the System log.

I tried rebooting the router and re-plugging every cable, but it didn't solve the problem. I wonder if anyone has run into this in the past, any insight/help would be appreciated. Thanks!

Comments

OutKast4Life

Check your ethernet connections for any looping and ensure that there aren't any IP conflicts. Check for any bad cabling as well. Try turning off any IPV6 settings. How is your gaming system connected (wired or wireless)?

Cang_Household

IPv6 is now disabled across all service regions after a command push from the Automatic Configuration Server (ACS), so this is unlikely caused by an IPv6 problem.

This sounds like the problem is upstream of the router, namely the cable connecting the router to the ONT, or the ONT itself, or the fiber line feeding the ONT. In the router logs, are there any indications of loss of WAN ethernet link?

massXt

Nope, nothing that I could find.

To give you an example, here are the router's system logs.

2024 Jan 7 13:23:17 CR1000A notice [SYS] LED dim off

2024 Jan 7 13:21:00 CR1000A notice [SYS] LED dim on(led pattern: )

2024 Jan 7 13:16:40 CR1000A notice [SYS] LED dim off

2024 Jan 7 12:52:00 CR1000A notice [SYS] LED dim on(led pattern: )

2024 Jan 7 12:47:21 CR1000A notice [SYS] LED dim off

The internet dropped at 12:47, but nothing in the Advanced log:

2024 Jan 7 12:48:53 arc_wlsta_monitor info [WIFI.6][ADV] BSS=ath1, PHY RATE=0 Mbps, TXOP=100

2024 Jan 7 12:48:53 arc_wlsta_monitor info [WIFI.6][ADV] BSS=ath0, PHY RATE=2401 Mbps, TXOP=100

2024 Jan 7 12:44:40 arc_acsd info [WIFI.6][ADV] ifname wifi2 action_type 2 select best channel 0

2024 Jan 7 12:44:40 arc_acsd info [WIFI.6][ADV] ifname wifi2 action_type 3 select best channel 0

Nothing in the DHCP logs too.

Below is the report from my Internet Connection monitor Chrome extension, you can see intermittent connection drops between 12:47 and 12:52

01/07/2024 12:51:31 PM	Online	0:25:08
01/07/2024 12:51:26 PM	No Internet connection	0:00:05
01/07/2024 12:47:31 PM	Online	0:03:55
01/07/2024 12:47:30 PM	No Internet connection	0:00:01
01/07/2024 12:47:27 PM	Online	0:00:03
01/07/2024 12:47:21 PM	No Internet connection	0:00:06

Cang_Household

Ok, the log is suggesting this is an intermittent wireless connection issue and may have to do with your device.

Could you plug an Ethernet cable between your computer and the router to see whether the Internet is still intermittent? Are you on WiFi? Did you enable 6GHz radios? If so, does your device support WPA3?

[please see the updated responses below, as the information here may not be accurate any more as more information are considered.]

massXt

I've disabled wifi on the router a long time ago. My PC is directly connected to the router via Ethernet.

Imo it's clearly not a device issue since the System Log has some correlated events (LED off at the same time when PC internet drops).

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