topic Re: ONT IP address in Full Fibre

ONT IP address

joe90bass — Sat, 23 Mar 2024 08:11:35 GMT

I’ve a ticket in with Plusnet as my TPlink deco is not getting a WAN IP. I’ve no spare router(I never took the free one, Plusnet are now sending one in the post though), if I plug a laptop into the ONT should it get an IP address? It’s not.
Thanks 😄

Re: ONT IP address

Dan_the_Van — Sat, 23 Mar 2024 08:20:30 GMT

@joe90bass welcome to the forum.

I suspect you are using Dynamic IP for the WAN IP Address which is incorrect you need to configure the WAN to use PPPoE adding your broadband username and password in the appropriate fields.

HTH

Re: ONT IP address

Dan_the_Van — Sat, 23 Mar 2024 08:46:05 GMT

To set up a PPPoE connection on a PC

https://tipsmake.com/how-to-set-up-and-use-a-pppoe-connection-on-a-windows-computer

HTH

Re: ONT IP address

joe90bass — Sat, 23 Mar 2024 08:47:15 GMT

In trying to keep the post brief I omitted this was a working setup using pppoe that just stopped working. I’ve reset the deco and swapped with another.

Re: ONT IP address

MisterW — Sat, 23 Mar 2024 09:00:24 GMT

So to be clear, this was a previously working Plusnet connection with the Deco router ?

What's the status of the led's on the ONT ?

Is there any information in a log on the Deco ?

Re: ONT IP address

joe90bass — Sat, 23 Mar 2024 10:16:33 GMT

Thanks for the help.
3 Green LEDs on the ONT. I’m out for the day now but will try and decipher the logs later and setup a pppoe connection on the laptop. My main query was just if it a laptop direct to the ONT would get an IP. I’ll try setting up a pppoe connection later and test.
Thanks again

Re: ONT IP address

James30 — Sat, 23 Mar 2024 15:53:51 GMT

@joe90bass As far as I'm aware it's pretty much a brick, It doesn't have a DHCP server and no web GUI just like the old FTTC modems and you setup a PPPOE connection in the same way and your computer does the job of the router.

Re: ONT IP address

joe90bass — Sat, 23 Mar 2024 18:21:12 GMT

Thanks James, I was expecting that a laptop direct into the ONT would get an IP from Plusnet in the same way a router would. I’ve tried setting up a pppoe connection on a laptop direct into the ONT and am getting an error 651.

Re: ONT IP address

Townman — Sat, 23 Mar 2024 18:36:31 GMT

That process has to allocate an IP address … or there’s no means of routing traffic.

Re: ONT IP address

joe90bass — Sat, 23 Mar 2024 18:43:24 GMT

Yes, but I’m not getting that WAN IP.

Re: ONT IP address

joe90bass — Sat, 23 Mar 2024 18:56:28 GMT

This is the settings in the Dec XE75, these worked until Thursday lunchtime. The IP address did show an IP previously

Re: ONT IP address

MisterW — Sat, 23 Mar 2024 19:29:13 GMT

What does the log on the Deco say ?

Re: ONT IP address

joe90bass — Sat, 23 Mar 2024 19:49:50 GMT

Lots of ntp check errors
Daemon.err pppd[18921] unable to complete pppoe discovery
It’s hard to pick out relevant stuff, there’s Lots of noise for internal dhcp, 802.11k,etc and the other Decos which are currently off in the logs.

Re: ONT IP address

Dan_the_Van — Sat, 23 Mar 2024 19:58:35 GMT

@joe90bass

I would suggest you apply a filter to the log and only look at PPP or save to your local PC and attach it to a post here, some folk here might be able to see what's going on

Re: ONT IP address

joe90bass — Sat, 23 Mar 2024 21:49:25 GMT

Thans Dan. It's not allowing me to upload a pdf, hopefully this link to the log in my one drive works. Link to log 
To recap- Our fibre connection went down Thursday daytime, my wife was working from home at the time. No changes were made by us to anything. Looking at the Deco app on my phone shows no IP address for the WAN connection. The three LEDs on the ONT are all green. Following a call with Plusnet I've factory reset the Deco, this has had the same result. I’ve also used a different deco, still no joy. Following a suggestion from TP-Link support and further info on here, I've attached a laptop direct to the ONT and created a PPOE connection, still no IP address. Plusnet are convinced it's the Deco at fault, I have no other router here as I use my own kit I never took up the free router offer, they are sending me one now though. 
The attached log is from today following a factory reset, the date hasn't updated.
Chris

Re: ONT IP address

Townman — Sat, 23 Mar 2024 22:34:03 GMT

AIUI the IP address is not allocated until the PPP session has been established. Have Plusnet confirmed that a PPP session has been established?

Re: ONT IP address

Dan_the_Van — Sun, 24 Mar 2024 07:55:24 GMT

@joe90bass

The option to attach files or pictures is missing if you are posting from a smart phone or tablet, this is easily resolved by setting the browser to use "desktop site".

With Chrome or Microsoft edge with the reply page open > Three dots top right corner >Scroll down and select 'Desktop site'

Then a paper clip should appear below the reply window just above "File attachment limits"

HTH