UniFI Dream Router slow when using PPPoE

WJA96 · 10 Jul 2022 at 21:37

chroniclard said:
I have a UDR, it's now boxed up on the shelf. It's a great bit of kit but can't handle 1gb connections, it just can't do the throughput. Gets even worse if you enable the qos functionality Luckily.i got it when it was pre release and it was cheap so I just kept it incase they improved the firmware. Just think the cpu has been skimped on.

Though newer ones might be quad core?

Was it on a PPPoE connection?

WJA96 · 10 Jul 2022 at 21:38

Steveocee said:
Out of interest, what's it set your MTU at?

Don’t know. I’ll have to get it unboxed again to check.

chroniclard · 10 Jul 2022 at 21:46

WJA96 said:
Was it on a PPPoE connection?

I don't know. Excuse my ignorance. :cry:

I had it plugged into my virgin router. It could not handle the bandwidth.

RSR · 10 Jul 2022 at 21:58

Steveocee said:
Out of interest, what's it set your MTU at?

Out the box, the UniFi devices on auto set it to 1492/1452 and there is no way in the GUI to set it to 1500/1460.

There is a feature request to enable mini jumbo frames on PPPoE (1500/1460) but seems to be going nowhere currently.

WJA96 · 10 Jul 2022 at 22:14

chroniclard said:
I don't know. Excuse my ignorance.

I had it plugged into my virgin router. It could not handle the bandwidth.

Then no, it wouldn’t have been but interesting that you assume it was the UDR to blame for not passing data.

chroniclard · 10 Jul 2022 at 22:34

WJA96 said:
Then no, it wouldn’t have been but interesting that you assume it was the UDR to blame for not passing data.

It was/is the UDR, all other routers(that I have used) handle the throughput fine.

Its just suffering from a barely adequate CPU imo

GeX · 11 Jul 2022 at 11:52

WJA96 said:
I‘d like to apologise to the OP - they were absolutely bang-on about PPPoE being the issue here. I was telling a colleague this on Friday and they said “rubbish” and plugged a UDR into our 1Gbps connection (fixed IP address) and was uploading and downloading at the full 1Gbps so it is a very good router and the issue is PPPoE.

Thank you. I appreciate that you didn't need to come back to this thread and post that update! Rare on forums!

GeX · 11 Jul 2022 at 13:17

For some closure to the thread, I bought a UDM SE instead and that runs line speed fine. I must get round to selling the UDR!

Steveocee · 11 Jul 2022 at 13:17

RSR said:
Out the box, the UniFi devices on auto set it to 1492/1452 and there is no way in the GUI to set it to 1500/1460.

There is a feature request to enable mini jumbo frames on PPPoE (1500/1460) but seems to be going nowhere currently.

I was thinking of going the opposite way. My Zen connection doesn't like anythign above 1480. May need a little CLI tickle but could be a place to try,

RSR · 11 Jul 2022 at 13:20

Zen support mini jumbo frames, as mines using 1500 MTU at the moment, ive also had 1500 MTU set on my old FTTC connection as well.

Steveocee · 14 Jul 2022 at 06:09

RSR said:
Zen support mini jumbo frames, as mines using 1500 MTU at the moment, ive also had 1500 MTU set on my old FTTC connection as well.

Set or actual? I can set 1500 on mine but it is actually running at 1480.

RSR · 14 Jul 2022 at 12:04

Steveocee said:
Set or actual? I can set 1500 on mine but it is actually running at 1480.

Both Set and Actual

https://www.speedguide.net/analyzer.php

Code:

# cat /etc/ppp/peers/ppp0
# Autogenerated by ubios-udapi-server
plugin rp-pppoe.so eth8
noauth
hide-password
persist
maxfail 0
holdoff 5
lcp-echo-interval 10
lcp-echo-failure 3
noaccomp
usepeerdns
default-asyncmap
mtu 1500
mru 1500
noipdefault
unit 0
linkname ppp0
remotename ppp0
#
#
# ifconfig eth8
eth8      Link encap:Ethernet  HWaddr E0:63:00:00:00:00
          inet6 addr: fe80::e263:daff:fe5b:f9/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1508  Metric:1
          RX packets:91885495 errors:0 dropped:0 overruns:0 frame:0
          TX packets:28805038 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:120146582797 (111.8 GiB)  TX bytes:5638258816 (5.2 GiB)

#