topic Re: Random reboots in Broadband

Random reboots

Howardm72 — Mon, 26 Jan 2026 09:53:39 GMT

My Sky router is randomly rebooting once to twice everyday. It takes down the network for a couple of minutes each time (not great when on a work Teams call!

I have checked the power and connections with no joy. I have even plugged it into a ups to make sure that power is not an issue.

i have rest the box back to factory settings also with on improvement.

any ideas?

Re: Random reboots

Chrisee — Mon, 26 Jan 2026 09:55:55 GMT

@Howardm72 any electronic device that randomly reboots is likely to be faulty. If it continues call Sky who should arrangecyo swap the init out.

Re: Random reboots

Howardm72 — Mon, 23 Feb 2026 12:22:26 GMT

So 30+ mins on a call to Sky trying to get them to understand that yes, it is all fine now, it reboots at random. No, I can't ring you when it is down because my landline I via the router and I have no mobile signal. No I can't sit in the cupboard where the router is waiting for it happen so I can 'take a picture of the lights'.... 🤬

I understand this is not on their script but seriously, it can't be that hard....

Re: Random reboots

JimM1 — Mon, 23 Feb 2026 13:16:40 GMT

@Howardm72 What sky hub do you have, the black or the white one? If black do you see it when that happens go back to a full restart, ie Power light start's off Red, then takes 4-5 minutes for the full reboot to back up connected?

If the black one you can go look at the Hub log, it will go back to 1970 time stamp showing a full restart has occured....

Re: Random reboots

Howardm72 — Mon, 23 Feb 2026 13:49:43 GMT

@JimM1 It is the Black one. It does do a full restart but I have looked at the logs and there is nothing. Yesterday it did it twice in about 10 minutes. Been ok since then but will probably drop out at some point this afternoon.

Re: Random reboots

JimM1 — Mon, 23 Feb 2026 14:12:03 GMT

@Howardm72 If the log does NOT go back to the start with 1970 then it is NOT rebooting, will go grab and post up! This what happens and is seen when a complete reboot happens, the log only holds about 24hrs before overwrite on the log... ?=0 added to get through the web filter. The stat's in maintenance will also show you all the connected up time for everything if you need to look at that!

1970-01-01 0?:00:22 syslog: [ 0.188000] brcmboard registered
1970-01-01 0?:01:07 syslog: [ 63.782000] Line 0: xDSL link down
1970-01-01 0?:01:08 syslog: [ 67.785000] Line 0: xDSL link down
1970-01-01 0?:01:18 syslog: Voice Configured
1970-01-01 0?:01:22 syslog: Voice Initialized
1970-01-01 0?:01:22 syslog: Voice Connecting
1970-01-01 0?:01:26 syslog: [ 81.796000] Line 0: xDSL link down
1970-01-01 0?:01:32 syslog: Voice Disconnected

Re: Random reboots

Howardm72 — Mon, 23 Feb 2026 16:43:02 GMT

Sorry @JimM1

Here are the logs. Everything on here with post 1970 dates are after the second 'reboot' last night;

1970-01-01 ?:21 syslog: [ 0.207000] brcmboard registered

1970-01-01 ?:21 syslog: [ 19.488000] eth2 (Ext switch port: 2) (Logical Port: 10) Link UP 1000 mbps full duplex

1970-01-01 ?:21 syslog: [ 20.446000] eth0 (Ext switch port: 0) (Logical Port: 😎 Link UP 1000 mbps full duplex

1970-01-01 ?:21 syslog: [ 20.476000] eth1 (Ext switch port: 1) (Logical Port: 9) Link UP 1000 mbps full duplex

1970-01-01 ?:21 syslog: [ 20.533000] eth3 (Ext switch port: 4) (Logical Port: 12) Link UP 1000 mbps full duplex

1970-01-01 ?:22 syslog: [ 21.474000] eth0 (Ext switch port: 0) (Logical Port: 😎 Link DOWN.

1970-01-01 ?:22 syslog: [ 21.503000] eth1 (Ext switch port: 1) (Logical Port: 9) Link DOWN.

1970-01-01 ?:22 syslog: [ 21.537000] eth2 (Ext switch port: 2) (Logical Port: 10) Link DOWN.

1970-01-01 ?:22 syslog: [ 21.567000] eth3 (Ext switch port: 4) (Logical Port: 12) Link DOWN.

1970-01-01 ?:24 syslog: [ 23.526000] eth0 (Ext switch port: 0) (Logical Port: 😎 Link UP 1000 mbps full duplex

1970-01-01 ?:24 syslog: [ 23.595000] eth2 (Ext switch port: 2) (Logical Port: 10) Link UP 1000 mbps full duplex

1970-01-01 ?:24 syslog: [ 23.626000] eth3 (Ext switch port: 4) (Logical Port: 12) Link UP 1000 mbps full duplex

1970-01-01 ?:25 syslog: [ 24.591000] eth1 (Ext switch port: 1) (Logical Port: 9) Link UP 1000 mbps full duplex

1970-01-01 ?:53 syslog: [ 39.862000] Line 0: xDSL link down

1970-01-01 ?:53 syslog: [ 52.871000] Line 0: xDSL link down

1970-01-01?:01:08 syslog: Voice Configured

1970-01-01?:01:08 syslog: [ 65.878000] Line 0: xDSL link down

1970-01-01?:01:12 syslog: Voice Initialized

1970-01-01?:01:12 syslog: Voice Connecting

1970-01-01?:01:22 syslog: Voice Disconnected

1970-01-01?:01:47 syslog: Failed to upload Telemetry data - Error(6)

1970-01-01?:02:00 syslog: sky dhcpc client (v0.0.1) started

1970-01-01?:02:10 syslog: sky dhcpc client (v0.0.1) started

1970-01-01?:02:18 syslog: eth3.1 - WAN link UP.

1970-01-01?:02:18 syslog: Received valid DHCP lease from server. Connection UP.

1970-01-01?:02:18 syslog: Connection Up. SNO/MAC/IP/SWVER/IPv6: [D210224B034798/00A3881B8EC0/5.65.94.5/7.04.0206.R/::]

1970-01-01?:02:18 syslog: Send out NTP request to ntp1.isp.sky.com

1970-01-01?:02:18 syslog: Time has been set from ntp1.isp.sky.com

2026-02-22 ?:13:20 syslog: Received NTP Sync Reply from ntp1.isp.sky.com

Stats show a system up time of just over 20 hours which tally's with the logs

Re: Random reboots

JimM1 — Mon, 23 Feb 2026 16:52:20 GMT

@Howardm72 That's perfect, as soon as you get a re boot that is just not expected, go look, the log should get wiped out and go back to 1970 until it touches the ntp server to get the correct and current date/time from it!

UPS is one off those, with a very light load of a Hub you have to be sure that the hub does NOT reboot especially if it is a mains type, the 12V battery connected right on the Hub is better, so be real happy that your UPS is working good!

The sky hub should JUST not be rebooting, going to send a PM to you!

Re: Random reboots

JimM1 — Mon, 23 Feb 2026 18:01:02 GMT

@Howardm72 The only thing i did apart from the ssid/password and admin password changes, was go set the wan setting off Auto which is the check either Vdsl/Ont connection to the WANoE only, forcing it to always use port 4 wan connection no matter what!