I've been reading this card is plagued with similar issues. I played around switching back and forth between auto and a specific setting to make sure it wasn't a fluke, and auto was always testing slow for some reason. Your friend will have to select a wireless mode based on how his router is setup. When I chose a specific setting (802.11a/n/ac) my connection speed went from 1-3 mbps to 40+ mbps (which is fast for my internet plan out here in the middle of nowhere). Right click the card -> Properties -> Advanced -> Wireless Mode

Go into device manager -> network adapters I was just about at my wits end and going to replace the card when I finally figured it out. I moved the PC around, played with the antennas, resat the card, and tried all sorts of stuff. Select the Wi-Fi network icon on the right side of the taskbar, then select Network & Internet settings. When you forget a network connection, it removes the Wi-Fi network profile from your PC.

Make Free WiFi Secure, Wherever You Are The free public WiFi you find in coffee shops, restaurants, hotels, airports and so on is rarely secure. To fix this, remove (or 'forget') the network connection, then reconnect to the network. Connection was consistently slow with small windows where it would be okay. ASUS Instant Guard uses VPN technology to create a secure data tunnel to your GT-AX6000, adding rock-solid security to any public WiFi connections you use. Been having a similar issue for months with this same card.

Asus pc link wifi connect