Xbox One X Outrageously Slow Wifi.

Mutilat1on · Nov 7, 2021

I have looked far and wide for an answer to this issue and Microsoft Support no longer answers questions for the One X.

I have both an Xbox Series X and an Xbox One X. My issue is that the Xbox One X's Download speed and Upload speed are absolutely horrid. 25.97 Mbps Down/36.53 Mbps Up. It is wirelessly connected as I am unable to hardwire it due to location issues. I know and understand that wifi is not the way to go, but it is my wife's and she doesn't play any lag-issue games. Prior to about 3 months ago, I was getting well over 100Mbps Down/Up wirelessly with it. It now will not go close to even 30 Mbps.

My setup:

ARRIS BGW210-700 gateway (1Gbps Fiber):

WiFi off

IP Passthrough enabled

Allocation Mode: Passthrough

Passthrough Mode: DHCPS-fixed

All Firewall settings are off.

Connected to a ROG GT-AX11000 Router:

Firewall: Standard

Game Boost: Enabled

QoS: Gaming

Both the Series X and One X are set to gaming.

I have turned QoS off entirely and speeds dropped to 17.72 Mbps Down/23.75 Mbps Up

Gear Accelerator: On for Both the Series X & the One X

Open NAT: Profiles created for Both the Series X & One X

Full Cone NAT

Smart Connect: Enabled

Wireless Mode: Auto (No other Options)

802.11ax/Wifi 6 Mode: Enable

WiFi Agile Multiband: Enabled

Channel Bandwidth: I have tried every configuration from 20MHz to 160MHz and even 20/40/60/80/160MHz

Control Channel: I use InSSIDer and checked all channels, there is no overlap, in fact, our neighbors are so far away their wifi barely appears.

Multi-User MIMO: Enabled

OFDMA/802.11ax MU-MIMO: DL/UL OFDMA + MU-MIMO

IPv4 DNS: 1.1.1.1; 1.0.0.1

IPv6 DNS: 2606:4700:4700::1111; 2606:4700:4700::1001

DMZ: I even put it in a DMZ and there was no change.

I've even verified that it is connecting to the 5G band.

Short of Factory Resetting the Router and starting from scratch, I have no idea where I have gone wrong.

Xbox One X:

Packet Loss: 0%

MTU: 1480

Latency: 32 ms

Wireless Strength: 100%

:)

Mutilat1on

Really would like this incident handled, BUMP.

SilentJay76

I've had a similar issue in the past, where the transfer speeds just disappeared for no apparent reason. (That was on the 360, though, if I remember correctly.) I never managed to fix it and in the end I just plugged in a LAN cable (which is the better option anyway - if possible.)

I know this won't help you much. But I just wanted to say you're not the only one to experience this phenomenon. Hopefully someone else can figure it out...

Mutilat1on

And of course, nobody knows why this is happening...and Microsoft Support doesn't help with Xbox One issues anymore.

taidara

Really would like this incident handled, BUMP.

Hi,

If you have the option to disable Wi-Fi 6 (802.11ax) in your router settings, then please do so.

You mentioned InSSIDer - could you check the RSSI (dBm) on your laptop, measuring from the same location as your Xbox is located.

How far from the ROG GT-AX11000 is your Xbox located?

Is your ROG GT-AX11000 up to date with the latest version of firmware?

Mutilat1on

The AT&T Gateway is already in IP Passthrough Mode.

Those ports are already defined in OpenNAT on the AX11000.

I have already reset the Xbox One X twice. Once without removing the apps and the second time a full Factory Reset.

Xbox One X Outrageously Slow Wifi.