TalkTalk Full Fibre router not working FTTP (solved)

This is a little trick a lot of full fibre customers are unaware of that can be a great help when troubleshooting connection issues and need to get online..

If you are having connection issues but all the lights on the ONT are the same as usual you can bypass the router and connect a laptop or similar device (using ethernet) directly to the ONT ethernet port, its always best to try a different ethernet cable to rule that out.

Once connected you should see the lights on the ethernet port on your device flash and you should be able to get back online.

Edited by Jack_Hackett (Tue 24-Jun-25 21:12:45)

In reply to a post by Jack_Hackett:

This is a little trick a lot of full fibre customers are unaware of that can be a great help when troubleshooting connection issues and need to get online..

If you are having connection issues but all the lights on the ONT are the same as usual you can bypass the router and connect a laptop or similar device (using ethernet) directly to the ONT ethernet port, its always best to try a different ethernet cable to rule that out.

Once connected you should see the lights on the ethernet port on your device flash and you should be able to get back online.

Unless of course the fault isn’t with the router or the device you connect to it via.

Unless of course the fault isn’t with the router or the device you connect to it via.

This is not meant to be a solution for all connection problems its meant to be a simple means of gaining internet access if your new router is toast which as you can see from the forum many are, its a very common topic.

TT customers have reported a lot of trouble with the eero routers in the forum support staff will offer a replacement (not sure about this new lot) to see if it is the cause of the problem but if yours goers wrong on a Friday night its going to be at least Wednesday before you can get another.

This method allows you to bypass the router by connecting directly to the ONT which in turn allows you to get back online, its not the most convenient way of doing so but at least you have no downtime while you wait for support to send another.

Edited by Jack_Hackett (Tue 24-Jun-25 16:59:01)

In reply to a post by Jack_Hackett:

Unless of course the fault isn’t with the router or the device you connect to it via.

This is not meant to be a solution for all connection problems its meant to be a simple means of gaining internet access if your new router is toast which as you can see from the forum many are, its a very common topic.

TT customers have reported a lot of trouble with the eero routers in the forum support staff will offer a replacement (not sure about this new lot) to see if it is the cause of the problem but if yours goers wrong on a Friday night its going to be at least Wednesday before you can get another.

This method allows you to bypass the router by connecting directly to the ONT which in turn allows you to get back online, its not the most convenient way of doing so but at least you have no downtime while you wait for support to send another.

Don't forget in your scenario there is no NAT/firewall between the internet and your devices LAN port which is never good for anything other than a quick fault finding test.

Getting infected by inbound traffic is no longer an issue. Windows has had a built-in firewall since Windows XP SP2. I know university campuses where the main staff and student LANs are all on public addresses with no firewall. I frequently go to conferences where the wireless LANs are public IPv4+IPv6.

These days, the main ways devices get infected are by clicking on dodgy links, and by clicking on dodgy attachments in E-mails. In both cases, these connections are originated in the outbound direction, which almost all firewalls will permit unconditionally. Furthermore, the traffic is encrypted, so the firewall can't inspect it.

Edited by candlerb (Tue 24-Jun-25 17:30:59)

In reply to a post by candlerb:

Getting infected by inbound traffic is no longer an issue. Windows has had a built-in firewall since Windows XP SP2. I know university campuses where the main staff and student LANs are all on public addresses with no firewall. I frequently go to conferences where the wireless LANs are public IPv4+IPv6.

These days, the main ways devices get infected are by clicking on dodgy links, and by clicking on dodgy attachments in E-mails. In both cases, these connections are originated in the outbound direction, which almost all firewalls will permit unconditionally. Furthermore, the traffic is encrypted, so the firewall can't inspect it.

Very interesting, I see the ports on my firewall get regularly rattled, what are they trying to achieve with this attempted connection if they are not trying to breach?

How does this work if the authentication with your ISP is negotiated by your router?

In reply to a post by candlerb:

Getting infected by inbound traffic is no longer an issue. Windows has had a built-in firewall since Windows XP SP2. I know university campuses where the main staff and student LANs are all on public addresses with no firewall. I frequently go to conferences where the wireless LANs are public IPv4+IPv6.

These days, the main ways devices get infected are by clicking on dodgy links, and by clicking on dodgy attachments in E-mails. In both cases, these connections are originated in the outbound direction, which almost all firewalls will permit unconditionally. Furthermore, the traffic is encrypted, so the firewall can't inspect it.

Thanks for explaining that itll put peoples mind at rest.

In reply to a post by CHW_BA12:

How does this work if the authentication with your ISP is negotiated by your router?

I had a quick search and came up with -


The ONT acts as the primary connection point in fibre networks, translating high-speed optical data into a form usable by home networks. So, in a fibre optic setup, you don’t really need a traditional modem because the ONT handles everything.

In reply to a post by Jack_Hackett:

TT customers have reported a lot of trouble with the eero routers

Why didn't you say?

The best thing to do with an Eero router is to replace it with something else, take the Eero out into the car park and set it on fire.

In reply to a post by rippedcotton:

In reply to a post by Jack_Hackett:

TT customers have reported a lot of trouble with the eero routers

Why didn't you say?

The best thing to do with an Eero router is to replace it with something else, take the Eero out into the car park and set it on fire.

I have had no issues with my eero and i like the app you install on your phone so you can see what's going on, there have been a few complaints from new customers but certainly not enough per week to suggest eero routers are junk, i get a rock steady 150Mbps on my 150 capped package and always have i also get good Wi-Fi signal all over the house, if it breaks when i am out of contract and i cannot get a replacement free i will go for something else the one below has been mentioned on the forum but i don't know if the customer left a review.

https://www.argos.co.uk/product/4016502?clickPR=plp:...

In reply to a post by Jack_Hackett:

In reply to a post by rippedcotton:

In reply to a post by Jack_Hackett:

TT customers have reported a lot of trouble with the eero routers

Why didn't you say?

The best thing to do with an Eero router is to replace it with something else, take the Eero out into the car park and set it on fire.

I have had no issues with my eero and i like the app you install on your phone so you can see what's going on, there have been a few complaints from new customers but certainly not enough per week to suggest eero routers are junk, i get a rock steady 150Mbps on my 150 capped package and always have i also get good Wi-Fi signal all over the house, if it breaks when i am out of contract and i cannot get a replacement free i will go for something else the one below has been mentioned on the forum but i don't know if the customer left a review.

https://www.argos.co.uk/product/4016502?clickPR=plp:...

My eero is still in it's box, I use a Fast 5364 of which TT have sent me several over the years.

In reply to a post by Jack_Hackett:

This is a little trick a lot of full fibre customers are unaware of that can be a great help when troubleshooting connection issues and need to get online..

If you are having connection issues but all the lights on the ONT are the same as usual you can bypass the router and connect a laptop or similar device (using ethernet) directly to the ONT ethernet port, its always best to try a different ethernet cable to rule that out.

this is not a trick or a hack ........ its a pppoe connection made by a pc

In reply to a post by Jack_Hackett:

Once connected you should see the lights on the ethernet port on your device flash and you should be able to get back online.

i'm soooooooooo confused by this statement - is it by air, magic, should i hire penn and teller...

Post deleted by Realalemadrid

In reply to a post by Taras:

this is not a trick or a hack ........ its a pppoe connection made by a pc

In the case of TT it is not a PPPoE connection made by the PC. TT (and Sky) use IPoE and DHCP to obtain the IP address details. That is what the OP was stating I think, that you can just plug a PC in without any configuration as it is just DHCP like you'd use from the router.

Sky used to add a username and password to the DHCP request via a couple of optional fields but now in most cases it is just plain DHCP and the Wholesale provider injects an ID into the request.

In reply to a post by Ad_G:

In reply to a post by Taras:

this is not a trick or a hack ........ its a pppoe connection made by a pc

In the case of TT it is not a PPPoE connection made by the PC. TT (and Sky) use IPoE and DHCP to obtain the IP address details. That is what the OP was stating I think, that you can just plug a PC in without any configuration as it is just DHCP like you'd use from the router.

Sky used to add a username and password to the DHCP request via a couple of optional fields but now in most cases it is just plain DHCP and the Wholesale provider injects an ID into the request.

Ahh, that would explain why the router would then work after a pc was plugged in .. so he was partially(mostly) correct but badly explained .......❤

Once connected you should see the lights on the ethernet port on your device flash and you should be able to get back online.

i'm soooooooooo confused by this statement - is it by air, magic, should i hire penn and teller...

No you should read the post not read into it something that was not there or meant!
I don't think i could have made the explanation any clearer -

https://avtech.com/articles/wp-content/uploads/2015/...

Your opening comment has been mentioned many times by others on this forum.

My eero is still in it's box, I use a Fast 5364 of which TT have sent me several over the years.

I prefer the eero as its small enough to sit on the shelf in front of the kitchen TV (next to the ONT) without blocking the screen.

The downside for some customers is the lack of Ethernet posts on the eero, some customers add a switch but if i needed more i would probably try a Fast 5364 instead.

In reply to a post by broadband66:

Your opening comment has been mentioned many times by others on this forum.

"Many times", i didn't think there were enough meber left here to discuss any topic many times

Strange how i posted exactly the same on the very busy TT Community and not one person asked me to clarify the point including the support staff and community stars who took part in it.

Edited by Jack_Hackett (Wed 25-Jun-25 15:28:53)

In reply to a post by Jack_Hackett:

Once connected you should see the lights on the ethernet port on your device flash and you should be able to get back online.

i'm soooooooooo confused by this statement - is it by air, magic, should i hire penn and teller...

No you should read the post not read into it something that was not there or meant!
I don't think i could have made the explanation any clearer -

Except you really didn't. Starting off saying its a trick is really really bad .......... My only mistake was mentioning a pppoe connection, in reality it doesn't matter. My reason to comment on your post was mostly valid..

In reply to a post by Jack_Hackett:

https://avtech.com/articles/wp-content/uploads/2015/...

wooooooo flasshy lights .......


Many of us, myself included will say if you connection issues with fttp, (depending on isp) is to directly connect your pc to the ont to ascertain if your network kit is working.

So saying its a trick - its not a trick

So saying its a trick - its not a trick

Well you can bet the forum pedant of the year award 2025 is safely in your hands already this year.

If this is how you reply to people trying to help others i am not surprised the place is dead i was simply trying to give TT customers who may be stuck all weekend with no internet as they often are a means to get online and all you can do is pick me up for using the word "trick" i think the aforementioned pedant award will fit you well

Edited by Jack_Hackett (Wed 25-Jun-25 20:28:40)

To be fair Taras is a highly respected member of this forum and he regularly helps people regardless of the ISP. You have been a strong advocate of TT over the years and you should be commended for that.

Rather than you both continue digging each other out, why not move on and call it quits.

In reply to a post by PCJM40:

In reply to a post by candlerb:

These days, the main ways devices get infected are by clicking on dodgy links, and by clicking on dodgy attachments in E-mails. In both cases, these connections are originated in the outbound direction, which almost all firewalls will permit unconditionally. Furthermore, the traffic is encrypted, so the firewall can't inspect it.

Very interesting, I see the ports on my firewall get regularly rattled, what are they trying to achieve with this attempted connection if they are not trying to breach?

They're looking for badly configured *servers*: machines which accept and process inbound connections from the Internet - and if they're behind a firewall, the firewall is accepting the traffic. Things like unpatched versions of Wordpress, SQL injection vulnerabilities, SSH password brute-forcing, and a million other things.

But if your laptop isn't running any services (or the inbound connections are blocked) you are fine.

In reply to a post by Jack_Hackett:

My eero is still in it's box, I use a Fast 5364 of which TT have sent me several over the years.

The downside for some customers is the lack of Ethernet posts on the eero, some customers add a switch but if i needed more i would probably try a Fast 5364 instead.

That's why I use a Fast 5364

Do a search, it's not just for TT ONTs.

The words "trick" or "hack" are used too often nowadays.

In reply to a post by broadband66:

The words "trick" or "hack" are used too often nowadays.

Thanks for letting me know.

In reply to a post by broadband66:

The words "trick" or "hack" are used too often nowadays.

Should we refer to OP as Jack_ett from now on?

I want everyone to have a good internet experience.

Now, giving out a solution and to be fair it is a solution when the supplied TT router isn't working out of the box. You don't really describe why it works but instead wrap it up as a trick.

i deliberately walked away from replying to you so that things can cool down. Instead you are being rude to others.

As we move to full uk fttp coverage, forums like TBB will change and at times there will be lest posting. Forums are a headache to run, i've owned a 5k user forum back in the 00s ....... i know the deal ok.

Jack please take a step back and think about how you came across. if you are offering a solution - understand that solution and for the love strawberries don't call it a hack or trick - it sounds like a bad ad thats gone badly wrong.

You don't really describe why it works but instead wrap it up as a trick.

I didn't feel the need to explain why it works, i explained that they need to plug the ethernet cable from the ONT into the laptops (or other devices) ethernet port if the TT customer reading it wanted to know why that works all they had to do was ask.

Edited by Jack_Hackett (Fri 27-Jun-25 14:27:30)

jack please take a step back and think about how you came across. if you are offering a solution - understand that solution and for the love strawberries don't call it a hack or trick - it sounds like a bad ad thats gone badly wrong.

I am sure any TT customer who who finds this thread because they have lost their connection wont care less that i named it a "little trick" or whatever i name it they'll be more than happy they can get back online -

This is a little trick a lot of full fibre customers are unaware of that can be a great help when troubleshooting connection issues and need to get online.

If you are having connection issues but all the lights on the ONT are the same as usual you can bypass the router and connect a laptop or similar device (using ethernet) directly to the ONT ethernet port, its always best to try a different ethernet cable to rule that out.

Once connected you should see the lights on the ethernet port on your device flash and you should be able to get back online.
.

Edited by Jack_Hackett (Fri 27-Jun-25 14:09:20)