Flint 3 + WINDTRE FTTC | Looking for the lowest possible latency for Fortnite

Hi everyone,

I'm looking for the best possible settings for my GL.iNet Flint 3.

My goal is the lowest possible latency and input lag for competitive Fortnite.

My setup

  • Router: GL.iNet Flint 3

  • ISP: WINDTRE FTTC (Italy)

  • Unfortunately fiber (FTTH) is not available in my area.

  • Connection: WINDTRE modem → DMZ → Flint 3 → PC via Ethernet

  • SQM enabled with CAKE

  • Bufferbloat: A+

  • Waveform unloaded latency: 21 ms

Before using the Flint 3, with only the WINDTRE modem and its QoS, I had around 26 ms in Fortnite.

After installing the Flint 3, Fortnite is always around 30 ms.

What I've already tried

  • DMZ

  • SQM (CAKE)

  • Different bandwidth values

  • Cloudflare DNS over HTTPS

  • Rebooting both modem and router

My question

Is there anyone with a similar FTTC connection who has found the best settings for the Flint 3?

Since I can't get FTTH, I'm trying to optimize everything I can.

Are there any recommended settings for:

  • SQM

  • CAKE

  • Packet Steering

  • Hardware Flow Offloading

  • IRQ balancing

  • MTU

  • DNS

  • OpenWrt advanced settings

or any other tweaks that helped reduce latency in competitive gaming?

Any advice would be greatly appreciated.

Thank you!

With cake can you adjust the per packet overhead setting for your connection?

Hi,

Since the difference is approximately 4 ms and is relatively limited, you may try the following checks to see whether it can be further reduced.

Could you please confirm whether both the WINDTRE modem’s QoS and Flint 3’s SQM using CAKE are currently enabled?
If both are enabled, please temporarily keep QoS enabled on the WINDTRE modem, disable SQM on Flint 3, and enable Network Acceleration on Flint 3 to see whether this helps reduce the latency.

If the WINDTRE modem supports bridge mode, you may consider configuring it in bridge mode and allowing Flint 3 to establish the Internet connection directly. This may reduce an additional layer of routing and NAT, avoid duplicated traffic processing, and allow Flint 3 to manage the connection and SQM directly.

Im NA West and my lobby ping is 11, in game ping ranges from 11 to 30 depending on the match, Epic is trying new things with routing so you won’t always have the lobby ping. They’re load balancing the matches across alternate data centers. I can ping the servers directly from my pc via cmd and trace route verifies this. One thing might help is using cloudflare DoH and forcing all clients to use it.

yes but I wanted to know if there were any other ways to improve, like using advace settings LucI

I know they're testing, but I've always had 30/40 ms and it's unplayable like this, only a week I managed to get 25 ms and it was completely another game

the windtre modem is the basic one so the various functions are crap, I think the only possible one is to put it in bridge but anyway I'm not sure if it's okay

I understand that but, it comes down to the connection you are using and your distance from the servers of the Game, if you can bridge the modem it should help.