After V76 release, Quest pro's download speed is capped to 200Mbps

Check to make sure you don't have QoS turned on somewhere on your network. Could be back as far as the gateway. 

I have seen that happen to different devices. For some reason the router/gateway will decide to limit a device and you will see slower speeds.

Find the setting, turn it off and test. See if the speed goes back to normal.

Just out of curiosity. Did you check? Did you at least try it?

I'm definitely not saying I am correct. I am just offering things to test.

QoS can cause issues with throttling a device because it is mis-categorized as something it is not.

That is the point of QoS to give particular devices priority on a network. If for some reason the updated version (v.76) is causing the QoS to see the Quest as a device that it doesn't see should be getting priority on the network, it will throttle the speed and give other devices the bandwidth.

So you see, it could be that it is a v76 issue that is causing the QoS to throttle the speed.

Don't jump to a conclusion automatically. Try things out before you immediately decide that they are wrong. Like I said, I don't know that I am correct. But it is a possibility, because there is something that is causing the speed to be throttled. 

And QoS can be on automatically. Or, in some cases, turn itself on after a firmware update. It did it to me on my ASUS GT-AX11000 Pro

It's a v76 issue.  This capped speed is only on my v76 qpro.  My other v72 pro with exact same settings functions great. 

I stand corrected! Didn't notice the local IP 😃

2025/04/17 Update: After V76.1023 Update, the wifi connection speed capped issue still hasn’t been patched, here’s some new test results under it2.5G LAN Quest Pro to PC 5Ghz Wifi connection speed2.5G LAN Quest Pro to PC 6Ghz Wifi connection speedUpdated today

Hi folks,

Our engineers are actively looking into your Quest Pro download speed issues. If you're impacted by this issue, could you please file a bug report? If we have your permission, we would like to pass these reports along to help our team's investigation. You can find more information on how to file a bug report here: https://www.meta.com/help/quest/1007645623437217/

This is an unresolved issue.
It appears to have reached 400 Mbps, but it takes time to actually reach 400 Mbps. However, it seems to be slightly improved from the initial version.
However, as others have explained, the difference between upload and download speeds is still too large.

PC using a 2.5G LAN, and I also tested it on an iPhone to confirm that there were no problems with the Wi-Fi.

v76 - 5076098.7000.340v76 - 5076098.7540.340

Apple iPhone 16 Pro Max Test

I'm also having this issue. My wireless performance on the Quest Pro has been shocking for around 3 weeks now, assumed the issue was something going on with my internal network (nothing changed so it shouldn't have), but after looking on here I realised it started around when my headset updated to V76.

Can confirm the issue still exists and im capped at 200mbps 

Ubiquiti U6E / AX5400 / U7 Pro 

same issue since V76 and some small stutters

Issue is still unresolved as of the latest update v76.1024 build 5076098.7860.340.  Local network download speed is still capped out at around 400mbps, and it is significantly slower than the upload speed when they should be similar.  Reported in-headset also, as always.