Router intermittently flashing

[Julessacha]

Hi there,

my router light is going through the following sequence:

solid white for about 20 seconds then flashes white twice orange once white twice orange once white twice orange once white twice before going solid white again

I can’t see anything that says what this could be.

Internet connection seems all okay despite the flashing router.

Please can anyone help?

[ferguson]

The service status page has now been updated and suggests a router reboot if still not working. 

[DrStrange]

Everything back to normal here. Sagemcom Fast 5464 Router status light is steady white, which it's supposed to be. No more flashing orange then white then orange, etc. Digital Voice phone has dial tone and I can make calls.

I did have the router powered off for the last hour or so and only turned it on a few minutes ago.

[Billx]

No, there are no challenges, @Philile-TT 

[Philile-TT]

@Billx I understand, if you having any further challenges please contact the full fibre team. 

[Billx]

Yes, but you have to admit, that the system appeared not to be aware which router I was using

Bill

[Philile-TT]

@Billx this is due to the fault all VOIP customers are experiencing, the engineer are working on it. 

[Billx]

I got the same nonsense message as @Julessacha at ‎24-05-2025 01:01 PM , after I performed a line test yesterday. I am using a Sagemcom Fast 5464. I am getting odd orange winks, now and then. Nothing catastrophic. The broadband is OK. The VOIP is showing as unregistered in the router. If I try to call, the number is called, but then immediately reverts to dial tone.

Bill

[sabelo-TT]

Hello there, kindly note that We're aware some customers may be experiencing issues with their digital voice service (VoIP). We're sorry for the inconvenience this is causing, our engineers are working to get this issue resolved as quickly as possible. 

Thanks. 

[NitaRoze]

Hi,

I also have the same problem. 

[KeithFrench]

Hi all,

Please look at the Service Status Dashboard. I have even put a sticky about it at the top of the Home Phone and Full Fibre boards.

[ferguson]

@DrStrange 

There isn't a "DVA" outage, there is a Digital Voice (VoIP) issue i.e. service, not equipment related. 

[Gliwmaeden2]

It's not affecting everyone and they have not indicated any distinction between the Grandstream DVA and the Sagemcom method of using VOIP. So, hit and miss, @DrStrange.

[DrStrange]

I am completely confused by this DVA outage. A few years ago I replaced the eero 6 and grandstream DVA with a Sagemcom Fast 5464 router (used by TalkTalk themselves) I bought on eBay, as the eero doesn't have enough ethernet ports for all my devices. This has a built-in phone socket for an analogue phone. I do not need to use any DVA adapter. Normally when I power it on it blinks orange on and off until it gets an internet connection when it changes to a solid white. My analogue phone works fine with it.

For the last day or so the status light on it has been continually blinking white then blinking orange. My analogue phone is not working. There is a continuous solid tone on the line. Internet  connection seems to be stable. Before I was aware of the DVA outage, I reconnected my eero and grandstream DVA. The eero status light was a solid white colour and there were no problems with the grandstream DVA. I got a good dial tone on my analogue phone and was able to make calls on it. Internet connection seemed stable.

Is there a DVA outage or not? And why is my router's status light continually flashing white then orange?

[jrhtg975]

I have exactly the same problem. I contacted talktalk through an online chat between 1200 and 1258 today and was told the following:

"I have double-checked everything for you and everything is working fine. Also, I've made a note of the details so that if you encounter any difficulties in the future, you won't have to repeat everything." and 

"Sometimes the router network fluctuates, which is why it’s showing a flashing light. Please rest assured it will be automatically fixed."

"There's no need to worry about the light on the router it will return to normal shortly." 

The lights are still flashing now at 16.52

[KeithFrench]

Hi @Julessacha 

You would also need a phone connected for it to register normally. However, it looks more & more like you are suffering from the same problem as me & others. Keep an eye on the Service Status Dashboard for updates.

[Julessacha]

Hi Keith,

yes looks like the connection is stable. Whilst in the router dashboard I noticed it did say Voice is not registered, when it is.

[KeithFrench]

Hi @Julessacha 

Then, if Digital Voice is configured on your account, whether you choose to use it or not, this light flashing may all be down to whatever is the cause of the Digital Voice issue, as mine is flashing in a similar manner to yours. For the progress on that problem, see the Service Status Dashboard:-

https://community.talktalk.co.uk/t5/Service-Status-Dashboard/bd-p/service 

If you log into the router, check how long the internet has been up for. This is found in the initial Dashboard, where it says Connection Up-time. If that is showing it has been up throughout the light flashing sequence, then the internet is remaining stable.

[Julessacha]

Hi Keith,

I have Digital Voice on my account but chose not to utilise it. No equipment for Digital Voice is connected. I chose to use my mobile as my main phone.

[KeithFrench]

Hi @Julessacha 

Out of interest, do you have Digital Voice (VoIP)? I have just started noticing a similar light sequence on my router & I have no digital voice at the moment due to a current outage.

[KeithFrench]

Hi @Julessacha 

No ignore the Digital Voice thing at the moment, there is a wider issue with that. You said you turned the ONT off, but was it for a minimum of 30 minutes? If that does not solve the issue, you can try calling the Full Fibre Helpdesk on 0345 172 0074. Their opening hours are Monday - Saturday 08:00 to 21:00, Sundays 08:00 to 19:00.