Accessing App Store using USB wireless card instead of AirPort I'm having trouble accessing my App Store account on my MacBook Air.

First of all, my AirPort chip was broken, so I bought a USB wireless card. Then my App Store account stopped working.

My question is: can I use my App Store account without having the card?
Yes. You can have dozens of network connections and the App Store supports them all. You’ll want to troubleshoot the store process normally without worrying about network adapter. 

Maybe:


https://support.apple.com/en-us/HT203421 official troubleshooting MAS
Stuck at login in App Store