Hi, in the past week, I've visited two different friends, and when I tried to access their network with the correct password, I repeatedly got the message Invalid Password, and WPA2 Password needed. Their computers, which are also Macs, work fine. I'm stumped, and can't find a similar problem already posted.
MacBook
Are you running any anti-virus programs? The next time that happens, try setting up another admin user account in System Preferences/Users & Groups to see if the same problem continues. Please post back on whether or not this worked. Also try the Safe Mode. Please post back on whether or not this worked.
Isolating an issue by using another user account
If it works in the Safe Mode, try running this program when booted normally and then copy and paste the output in a reply. The program was created by Etresoft, a frequent contributor. Please use copy and paste as screen shots can be hard to read. Click “Share Report” button in the toolbar, select “Copy to Clipboard” and then paste into a reply. This will show what is running on your computer. No personal information is shown. If the log won’t post, try posting it in Pastebin and provide a link in a reply. After pasting the report in a PasteBin page, go to the top of the page, and copy the address in the URL bar. Paste that in a new reply. Pastebin
WPA2 Passwords rejected on Sierra
