Fix MediaTek WIFI 6 MT7921 Wireless Adapter Shows Yellow Exclamation Triangle In Device Manager
0Fix MediaTek WIFI 6 MT7921 Wireless Adapter Shows A Yellow Exclamation Point in Device Manager
Step 1) Perform Power cycle- Shut down your computer, unplug the power cable for 1-2 minutes, turn off WIFI router, wait for few seconds and restart your WIFI router, connect the power cable back to PC and then restart your computer
Step 2) Make sure WIFI is on in system BIOS- start your PC and immediately tap BIOS key (Such as F2)
Step 3) Run these commands
ipconfig/flushdns
ipconfig /release
ipconfig /renew
netsh winsock reset
netsh int ip reset
Step 4) Disable and enable network adapter
Step 5) Start WLAN AutoConfig service
Step 6) Perform network reset (Make sure you have the WIFI password)
Step 7) Reinstall Network Driver (Make sure you have the WIFI password)
Step 10) Install Wireless driver from your system manufacturer website, connect Ethernet cable and go online, in case you don’t have Ethernet cable or computer does not have an Ethernet port then use another computer with internet access and download the wireless driver to the USB flash drive/hard drive and use the USB flash drive/hard drive to install the wireless driver to the faulty computer.
Step 11) Update system BIOS- Use Ethernet cable or download BIOS file (On another PC) to external storage device and then install it
Step 12) Reset your PC (Reset may result in data loss so create a backup before the reset)