Trendnet router connecting to Plusnet FTTC

Hi, wondering if anyone can help me.
I have a Trendnet router TEW-816DRM which I bought myself and have used for ADSL on Plusnet, and I've just upgraded to FTTC, but can't seem to get it working. I have a PN Hub One (borrowed from a friend, because I thought I'd be able to use my own), and that works fine.
I can't seem to get the right settings. The ones I'm offered are as follows:
Mode: ATM/PTM (The CS at Plusnet claimed I must use ATM on 0/38, doesn't seem right)
For ATM I'm also offered:
VPI, VCI, Service Category (UBR/PCR/VBR/CBR and their settings),

Then I have Protocol: PPPoE/PPPoA (for ATM)/MER/Bridging
VLAN Id
PPP also has the usual settings: User, Password, MTU, MRU, KA, LCP, Auth mode (PAP/CHAP/MSCHAP/Auto).

I understood VDSL from Openreach always uses PTM, but when I do that it doesn't seem to even sync. ATM will sync but then won't authenticate a session, either PPPoE or PPPoA.
Where am I going wrong?

Unfortunately the logs only tell me a successful authentication, not failures, and sync is not logged. But DSLstats does work and I can telnet and get data using adslphxcmd.

Broadband username or login name [email protected]
Connection type or encapsulation PPPoE Always On
Password The password you use to log in to the Member Centre
VLAN Active
VLAN ID (802.1q) 101
VLAN ID (802.1p) 0

VPI VCI are for the old ADSL2+ service, so are you sure you've selected VDSL2 Profile 17a as the DSL mode

In reply to a post by MrSaffron:

Broadband username or login name [email protected]
Connection type or encapsulation PPPoE Always On
Password The password you use to log in to the Member Centre
VLAN Active
VLAN ID (802.1q) 101
VLAN ID (802.1p) 0

VPI VCI are for the old ADSL2+ service, so are you sure you've selected VDSL2 Profile 17a as the DSL mode

Yeah that's exactly what Plusnet's site says. I set all of it, except there is no option for VDSL profile, just ATM/PTM. I'm assuming the guy was talking garbage when he said it was ATM, all people are saying online is it's PTM with a PPPoE auth. But I can't seem to get sync on that.
Can the authentication type make a difference (PAP/CHAP etc) I left that on auto?
And judging by the Wiki on 802.1p, I can' t work out which of 0 and 1 on my router represents 0 and 1 with Openreach, i.e. am I looking at PCP value or the actual priority name?

Is it typical to get a 40/6mb sync from the DSLAM? The upstream feels a little low. It's ~700m line, line attenuation is coming in at 23.8

In reply to a post by techeasy:

Is it typical to get a 40/6mb sync from the DSLAM?

That's roughly what I get on my 55/10 account, I'm about half a mile from the cabinet.

p.s. my current connection is
Noise margin: 6.2 / 8.1
Line attenuation: 34.6 / 24.0

p.p.s. Speedtest just now.

Edited by longedge (Tue 30-Jun-20 06:20:27)

In reply to a post by techeasy:

... I've just upgraded to FTTC, but can't seem to get it working.
...
Mode: ATM/PTM (The CS at Plusnet claimed I must use ATM on 0/38, ...

How Plusnet continue to get their ratings and awards for support is beyond me!

In reply to a post by jelv:

How Plusnet continue to get their ratings and awards for support is beyond me!

Agreed. Although the same could be said for many providers. Openreach for example. They managed to wire my shiny new FTTC back-to-front apparently, and didn't even bother to do a basic check to see if the router was even in sync. I had to get them to come back yesterday to fix it, at which point they managed to knock out the phone and spent half hour rewiring and testing again.

But I'm still having issues with the Trendnet. I got it to sync in PTM mode and coming through at 40/6mbps, but for love or money I can't get the PPP connection up. I also tried [email protected]_domain and @plusdsl.net but no joy. I tried it in bridging mode and connecting from my PC, it also couldn't get a connection.

It seems to be some kind of BusyBox setup and pppd is there, does anyone know commands I can try to pull up the connection? I haven't much of an idea how to use pppd.

Can't test it now because I don't want to switch the router back today (scared of DLM) but could it be the MTU/MRU? On the Hub One I get a maximum packet of 1488 (1460 from ping) whereas I set the Trendnet at 1492.

These are many of the settings in my router for Plusnet and which also work for Vodafone:


GENERAL

Type : ADSL/VDSL over PTM
Mode : Routing
Encapsulation: PPPoE
IPv6/IPv4 Mode: IPv6/IPv4 DualStack


PPP Information

PPP User Name : [email protected]
PPP Password :
PPP Trigger Type : Auto Connect
Authentication Method: AUTO
Idle Timeout [minutes]:: 5
PPPoE Service Name : blank
PPPoE Passthrough : blank


IP Address

Obtain an IP Address Automatically


Routing Feature

NAT Enable : Yes
Fullcone NAT Enable : No
IGMP Proxy Enable : Yes
Apply as Default Gateway : No


DNS server

DNS : static
DNS Server 1 : 8.8.8.8
DNS Server 2 : 8.8.4.4


VLAN

Active : Yes
802.1p : 2
802.1q : 101


MTU

MTU Size : 1492