Wifi access point no longer found on my macbook pro Only since yesterday, I am unable to find an access point on my macbook pro (MBP) running Mavericks 10.9.5. Interestingly, all my other devices (Nexus 5, Ipad, Macbook Air) can see it and connect to it. All devices are in line of sight to the router. The router is broadcasting the SSID. Also the MBP connects to my other access points just fine.

I have tried the following:


Restart the router. Twice.
Turn wifi on and off on the MBP
Connect to the wifi network using 'Join Other Network'. This results in 'No network found.'
Restarted the MBP
PRAM reset on the MBP
SMC reset on the MBP
Change the wifi channel on the router
Renamed the SSID


I am really stumped and need help to figure this out. Thanks.

EDIT: The wifi access point became visible again. No changes were made to either mac or router. Neither were even rebooted. I took my mac to work and connected it to the office network. When I returned home, the rogue wifi access point was connectable. 

I am closing the question by selecting the first answer since I learnt something new from it.
You can try to manually connect using the terminal (copy and paste following (one by one).

You can skip step one and two, and go to step 3, and enter your SSID and password.

Turn On

networksetup -setairportpower en0 on


Find

/System/Library/PrivateFrameworks/Apple80211.framework/Versions/A/Resources/airport scan


Connect

networksetup -setairportnetwork en0 WIFI_SSID_I_WANT_TO_JOIN WIFI_PASSWORD


In your case it sounds like your Router is denying you the access. The settings depend on the router type.

Here is a example of mine. (not blocking anyone)



You know this but just making sure: