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Ubiquiti EdgeRouter 4 Settings for TPG HFC

heyfutes
Level 2

Can anyone assist with the setting I should use for my Ubiquiti EdgeRouter 4 TPG NBN via HFC.

I just switched from Telstra and was getting 100Mbps down using the same equipment but am only getting between 65-78Mbps with TPG.

Screenshot of current settings attached.

Thanks

6 REPLIES 6
david64
Master

Hi @heyfutes . Can you set MTU=1480?

My router has 1480 on its ethernet WAN definition.

Using Wireshark, I can see frames:

Mac header 14 bytes

IP header 20 bytes

TCP header 20 bytes

Data 1460 bytes

The MTU consists of TCP header + Data

If MTU too high, it can cause fragmentation of ethernet frames.

If you use the speedtest on TPG support page, does the upload graph proceed smoothly or stop/start?

heyfutes
Level 2

Thanks @david64 

Updated the MTU to 1480 - still only getting around 75Mbps.

I conducted the TPG speedtests and it all seems pretty smooth (see screenshot).

david64
Master

@heyfutes . Can you find the Ubiquiti's default gateway; it's either in config or do this on your computer:
tracert -h 3 tpg.com.au

First address is Ubiquiti, second address is default gateway.I think it is first part of TPG's network. Long response here affects all internet traffic.

Can you also do:

tracert google.com.au

tracert nrma.com.au

nslookup tpg.com.au

adib_rahmang
Moderator

Hey @heyfutes,

 

We'll get our techs on the case for you. Are you able to send me a private message?

heyfutes
Level 2

Thanks for your help @adib_rahmang and @david64 

I worked out the cause - it is the SQM/QoS feature of the Ubiquiti Edgerouter. If I disable it, I get the full speed (100Mbps). Once I enable it, it reduces my speed (as it should).

I've adjusted the SQM settings to match my connection. 

Thanks again


adib_rahmang
Moderator

That makes sense! We're glad to hear that things are back to normal.