Unifi USG on Spark Fibre terrible speeds

Welcome Guest.

You haven't logged in yet. If you don't have an account you can register now.

Forums › LAN (ethernet/Wifi/routers/Bluetooth) › Unifi USG on Spark Fibre terrible speeds

hairy1

3332 posts

Uber Geek

ID Verified

Trusted

Lifetime subscriber

#245380 1-Feb-2019 08:18

Hello all,

I have a Unifi Security Gateway running on Vodafone Fibre here and am very happy with it and recommended it to a mate.

He is on Spark Fibre and I set it up and it is unusable. Extremely slow internet with connection drops. I am using DHCP with Vodafone but I set up PPPoE on Spark as per their instructions.

From a bit of Googling it appears that the MTU settings may be causing the issues and MSS Clamping may need to be set to 1448.

Am I on the right track here? Can anyone confirm this setting will fix the problems? I will have to do this remotely via the old modem so it will be a bit of an exercise to set this so am wanting to confirm it before we spend some time on the phone resetting his connection.

Cheers, Matt

My views (except when I am looking out their windows) are not those of my employer.

davidcole

6041 posts

Uber Geek

Trusted

#2171124 1-Feb-2019 09:11

My usg is default, and on spark ufb...it regularly reports my 100mpbs connection at 103 down, and 22 up.

Previously known as psycik

Home Assistant: Gigabyte AMD A8 Brix, Home Assistant with Aeotech ZWave Controller, Raspberry PI, Wemos D1 Mini, Zwave, Shelly Humidity and Temperature sensors
Media:Chromecast v2, ATV4 4k, ATV4, HDHomeRun Dual
Server Host Plex Server 3x3TB, 4x4TB using MergerFS, Samsung 850 evo 512 GB SSD, Proxmox Server with 1xW10, 2xUbuntu 22.04 LTS, Backblaze Backups, usenetprime.com fastmail.com Sharesies Trakt.TV Sharesight

hairy1

3332 posts

Uber Geek

ID Verified

Trusted

Lifetime subscriber

#2171130 1-Feb-2019 09:28

Thanks David. Are you using pppoe to connect? I'm wondering if there's something wrong with the unit. It wouldn't even connect itself to the cloud controller.

My views (except when I am looking out their windows) are not those of my employer.

davidcole

6041 posts

Uber Geek

Trusted

#2171132 1-Feb-2019 09:33

hairy1: Thanks David. Are you using pppoe to connect? I'm wondering if there's something wrong with the unit. It wouldn't even connect itself to the cloud controller.

Yes pppoe. Spark as the username....and VLAN ID 10.

I had to look around to find that..but it was under the WAN network in the controller under networks.

hairy1

3332 posts

Uber Geek

ID Verified

Trusted

Lifetime subscriber

#2171136 1-Feb-2019 09:38

OK. That's all the same. Thanks. Can you look at the USG settings under advanced and check the MSS Clamping setting? If yours is auto I will get the device replaced.

Cheers.

My views (except when I am looking out their windows) are not those of my employer.

hairy1

3332 posts

Uber Geek

ID Verified

Trusted

Lifetime subscriber

#2171137 1-Feb-2019 09:40

It is here:

My views (except when I am looking out their windows) are not those of my employer.

TechSol

299 posts

Ultimate Geek

Technical Solutions Aust

#2171138 1-Feb-2019 09:40

hairy1: Thanks David. Are you using pppoe to connect? I'm wondering if there's something wrong with the unit. It wouldn't even connect itself to the cloud controller.

I have a few of these on Spark connections and they are all good. Make sure you have the latest firmware as I know some units shipped with a really bad firmware on them

hairy1

3332 posts

Uber Geek

ID Verified

Trusted

Lifetime subscriber

#2171141 1-Feb-2019 09:46

OK. I has to be a bad unit then. It has the latest firmware. I will get him to return it. Thanks for your help everyone.

My views (except when I am looking out their windows) are not those of my employer.

Quic Broadband

Move to New Zealand's best fibre broadband service (affiliate link). Free setup code: R587125ERQ6VE. Note that to use Quic Broadband you must be comfortable with configuring your own router.

davidcole

6041 posts

Uber Geek

Trusted

#2171142 1-Feb-2019 09:49

Mine is on auto.

Spyware

3767 posts

Uber Geek

Lifetime subscriber

#2171160 1-Feb-2019 10:12

hairy1:

OK. I has to be a bad unit then. It has the latest firmware. I will get him to return it. Thanks for your help everyone.

Big assumption.

gehenna

8521 posts

Uber Geek

Moderator

Trusted

Lifetime subscriber

#2171202 1-Feb-2019 10:31

Spyware:

Big assumption.

IT is built on assumption, until you eliminate all the assumptions and get to the facts.

News and reviews »

Gen Threat Report Reveals Rise in Crypto, Sextortion and Tech Support Scams
Posted 7-Aug-2025 13:09

Logitech G and McLaren Racing Sign New, Expanded Multi-Year Partnership
Posted 7-Aug-2025 13:00

A Third of New Zealanders Fall for Online Scams Says Trend Micro
Posted 7-Aug-2025 12:43

OPPO Releases Its Most Stylish and Compact Smartwatch Yet, the Watch X2 Mini.
Posted 7-Aug-2025 12:37

Epson Launches New High-End EH-LS9000B Home Theatre Laser Projector
Posted 7-Aug-2025 12:34

Air New Zealand Starts AI adoption with OpenAI
Posted 24-Jul-2025 16:00

eero Pro 7 Review
Posted 23-Jul-2025 12:07

BeeStation Plus Review
Posted 21-Jul-2025 14:21

eero Unveils New Wi-Fi 7 Products in New Zealand
Posted 21-Jul-2025 00:01

WiZ Introduces HDMI Sync Box and other Light Devices
Posted 20-Jul-2025 17:32

RedShield Enhances DDoS and Bot Attack Protection
Posted 20-Jul-2025 17:26

Seagate Ships 30TB Drives
Posted 17-Jul-2025 11:24

Oclean AirPump A10 Water Flosser Review
Posted 13-Jul-2025 11:05

Samsung Galaxy Z Fold7: Raising the Bar for Smartphones
Posted 10-Jul-2025 02:01

Samsung Galaxy Z Flip7 Brings New Edge-To-Edge FlexWindow
Posted 10-Jul-2025 02:01

Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.

Updates »

Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

RSS feeds: Main feed; Forums feed

Site features: Geekzone BI dashboard; Geekzone Badges; Geekzone Status Page

Affiliate links: Samsung; AliExpress; Wise; Sharesies; GoodSync

Site Information: Subscribe to Geekzone; Privacy Statement; Forum Usage Guidelines (FUG); Advertising; Trademark and copyright