My wifi stop working suddenly and when I try connecting via terminal I got the below error.
Mac : MacBook Air (13-inch, Early 2015)
Error I am getting :
Error: -3912 The operation couldn’t be completed. (com.apple.wifi.apple80211API.error error -3912.)%
I searched the error it shows kCWChallengeFailureErr . I dont know what is the fix.
wifi is visible in my prefered network but it not connected unless I am sitting next to the wifi router.
Looks like it got a range issue.
wifi card detail:
Card Type: AirPort Extreme (0x14E4, 0x117)
Firmware Version: Broadcom BCM43xx 1.0 (7.77.111.1 AirPortDriverBrcmNIC-1680.8)
MAC Address: ----------
Locale: ETSI
Country Code: CN
Supported PHY Modes: 802.11 a/b/g/n/ac
Please suggest.
Thanks in Advance.
test123123321
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