@DungNQ get a refund.

They refunded mine. 

Hi , I just bought this pcie wifi adapter and have the same issues as you all, It was detected for a while but then after rebooting it will disappear, other than that I also experiencing several BSOD. My machine :

Aorus b450 pro wifi

AMD Ryzen 5 3600

GTX 1650 super 

Corsair vengeance 8x2 3200Mhz cl16

and Im running a latest windows 10, is there any permanent fix for this issue?

@Paris_lly as of yet no.  I still shut down, wait about 1 min, then boot back up.  On the rare ocassion, the wifi will be fine on the initial boot.  Although there have been several driver updates over the past few months and Win10 updates, to date, nothing has fixed this.

Try unplug PC for 10 seconds, plug back in. Helps some people.

@AllenHernandez  @harry_haikal @HondoMan 

While waiting for the engineers to find a way, I found a temporary fix although it was a bit annoying. The first time when I turn on the computer there is no Wifi icon but if I go to Network reset and press reset then I shut down (Note restart nothing happens) the computer and turn it back on with the button power will show both wifi and bluetooth. And now I restart comfortably and still don't lose wifi, only when I shut down the machine it loses again and I have to do the Network reset step again if I want to have wifi again. I still have not found a way to completely fix this problem, but I hope someone will find a way. I have to go to device manager to do view/show hidden devices, I will see the Intel(R) Wi-Fi 6 AX200 160MHz wifi card is hidden and press and properties will see the error line "Currently, this hardware devices is not connected to the computer (Code 45)"

@Paris_lly 

I have the same problem with you but I found a workaround for this by putting my PC to sleep mode and wake it up. Surprisingly, the wireless adapter can be detected after that. I hope there a long term fix for this issue as I have been putting my PC to sleep mode and back for more than 100 times just to get the wireless adapter detected. It works every time I wake it up from sleep mode. Please post it here if you guys had the same experience.

@Jarrod I also just discovered that after shutting down my computer for 1 night and turning it on with no wifi, then I immediately put it to sleep and woke it up just to get wifi and bluetooth working. And honestly engineers always blame the hardware :)). I think for some reason the Ax200 chip may not be powered up after the computer wakes up for a period of rest. And only when the machine has been active, the power will be available and it will work after putting it to sleep and waking up again.

I managed to get mine to work by changing the slot my gpu is placed in, tried all the other fixes and this was the one. Try it out if you have the possibility to place your gpu in another pcie slot.

@Tiritomba What is your product set? I think it will have a big impact on this.

@Jarrod I also got this Wi-Fi card, also not detected. The first thing I did was to change PCIe slot, didn't work, then update bios then it pop up on my taskbar working but after turning the pc off then opening it again it did not detect the card again. i saw your solution, it work but that is not permanent, so i read more and found a better solution is to change the bios setting, my mb is b450 aorus elite, i go to miscellaneous settings>pcie slot configuration>then chose gen 1. that is where i put the wifi card. now everything is working fine even after a day and even turning the pc on and off. hope it helps. sorry for my bad english. not very good at it.

ryzen 5 2600

aorus b450 elite

gigabyte gtx 1070ti