# GL.iNet GL-AX1800(Flint) Wireguard download and upload at KB! **URL:** \ **Category:** VPN, DNS, Leaks\ **Created:** [June 22, 2023, 2:10am UTC](https://forum.gl-inet.com/t/gl-inet-gl-ax1800-flint-wireguard-download-and-upload-at-kb/30714 "2023-06-22T02:10:49Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![SLeAsian](https://forum-assets.gl-inet.com/letter_avatar_proxy/v4/letter/s/47e85d/32.png) [@SLeAsian](https://forum.gl-inet.com/u/SLeAsian)\ **Post date:** [June 22, 2023, 2:10am UTC](https://forum.gl-inet.com/t/gl-inet-gl-ax1800-flint-wireguard-download-and-upload-at-kb/30714/1 "2023-06-22T02:10:49Z")
Hello everyone, I am new to setting up wireguard (With home router and travel router, GL-AX1800 and GL-AXT1800) and my upload and download speed when connected to it is only 3.15 KB upload and 280.57 KB download. It is so slow I am unable to load any pages. This is after I played around with MTU to be 1360 (didn’t work that well) and 1380. I have screenshots below of my current upload speed with my home router (It is usually this speed) ![Screenshot 2023-06-21 at 9.02.18 PM](https://forum-static.gl-inet.com/original/2X/4/46355c5ab5b3f7e68d49f0ea3be025310922364b.png) and the device I connected it with have around 20 mb download speed. No DDNS What is the issue here? I just need around 10 mb download and upload to do productive things. ---
**Author:** ![SpitzAX3000](https://forum-assets.gl-inet.com/user_avatar/forum.gl-inet.com/spitzax3000/32/11018_2.png) [@SpitzAX3000](https://forum.gl-inet.com/u/SpitzAX3000)\ **Post date:** [June 22, 2023, 2:27am UTC](https://forum.gl-inet.com/t/gl-inet-gl-ax1800-flint-wireguard-download-and-upload-at-kb/30714/2 "2023-06-22T02:27:55Z")
Few things to try: - restore the mtu - turn off the vpn on the router - do a speed test and make sure your are not using the internet connection while testing to get accurate speed of your connection - connect your windows/mac using the wireguard configurations and do a speed test? What is the speed ? - lastly turn off the vpn on the machine and configure it on the router … speed test … what is the speed ? ---
**Author:** ![K3rn3l\_Ku5h](https://forum-assets.gl-inet.com/user_avatar/forum.gl-inet.com/k3rn3l_ku5h/32/5634_2.png) [@K3rn3l\_Ku5h](https://forum.gl-inet.com/u/K3rn3l_Ku5h)\ **Post date:** [June 22, 2023, 8:12pm UTC](https://forum.gl-inet.com/t/gl-inet-gl-ax1800-flint-wireguard-download-and-upload-at-kb/30714/3 "2023-06-22T20:12:16Z")
Whats the Firmware? What is the speed promised by the ISP, you wil usually see a loss between 5%-25% of promised. Like @SpitzAX3000 suggested restore the defaults for the MTU Also try using the DNS servers your VPN provides. You could also try SQM setup > **[SQM (Smart Queue Management)](https://openwrt.org/docs/guide-user/network/traffic-shaping/sqm)** > > SQM (Smart Queue Management) OpenWrt has a package called SQM for mitigating bufferbloat, the undesirable latency that arises when your router buffers too much data. Install the luci-app-sqm package (or sqm-scripts if you don't use LuCI) and read... [https://www.bufferbloat.net/projects/bloat/wiki/Getting\_SQM\_Running\_Right/](https://www.bufferbloat.net/projects/bloat/wiki/Getting_SQM_Running_Right/) [![](https://img.youtube.com/vi/OPtFTcX92lw/maxresdefault.jpg "OpenWRT - SQM QoS Setup on LuCI") ](https://www.youtube.com/watch?v=OPtFTcX92lw) ---
**Author:** ![bruce](https://forum-assets.gl-inet.com/user_avatar/forum.gl-inet.com/bruce/32/35649_2.png) [@bruce](https://forum.gl-inet.com/u/bruce)\ **Post date:** [October 29, 2025, 4:22am UTC](https://forum.gl-inet.com/t/gl-inet-gl-ax1800-flint-wireguard-download-and-upload-at-kb/30714/4 "2025-10-29T04:22:39Z")