wifi connection problems under Mavericks

Hello!

Same issue - after upgrade to Maverick I'm struggling with Wifi with the following message - "the wifi network cannot be joined, try moving closer to your wireless router. Alternatively, run wireless diagnostics for troubleshooting."

Sometime issue occurs when connecting to iPhone5 running latest IOS, sometimes in connecting public hotspots. Interesting that my collegue using old version of OSX never faced such issue and my iPad connects great to all where MBP gets error message. What is the workaround for this problem as seems it's pure Maverick issue?

Digit

/System/Library/PrivateFrameworks/Apple80211.framework/Versions/Current/Resource s/airport -s

in Terminal, press enter and post the output on this board.

The full wifi signal on the bar is not a reliable source since I've noticed OS X tends to overestimate wifi power. I would try first to change WiFi channel on your router and see if it connects! I've noticed that after the upgrade the wifi strength was lowered and my macbook struggled to find certain network!

Anyway, post your output here so we can better understand your wireless environment!

Also, tell us what the name of your wifi is so that we can find it on the report!

this seems to have gone quiet, but it's the only post I've seen describing my issue, so I'll jump in and add some stuff.

My problem network is actually my local café. I'm not sure if it's because of my upgrade to Mavericks or their changing some settings (at least, they changed the password). But I'm getting exactly the problem described above on my 2011 macbook air, recently upgraded to mavericks.

Until now I've just been using personal hotspot from my phone instead (and right now to type this), but today I'm having a concerted effort to fix it and it's defeating me.

Observations: Other people are connecting fine. Including other macs, but unknown if they're running Mavericks.

My iPhone (iOS7) connects fine. I can see other people's iOS devices working fine.

Things I've tried without success:

Running wifi diagnostics as prompted. Nothing useful, but the logged error: "Error retrieving BSSID (-3903)." about which I can't find anything useful.

Removing /Library/Preferences/SystemConfiguration (and rebooting, so includes the test of just rebooting)

Creating a new network location

Repairing disk permissions. (suggested http://osxdaily.com/2012/02/15/fix-for-mac-os-x-not-remembering-wireless-network s/ )

Changing MTU (down to 1453 suggested http://osxdaily.com/2012/08/02/fix-os-x-mountain-lion-wireless-connection-proble ms/ )

(renewing DHCP lease irrelevant; not getting that far)

The network, although I used to connect regularly to it by its current name, is not in my remembered networks nor in my keychain access, so I can't remove it from there.

As requested earlier in this thread, airport -s:

localhost:~ rachel$ airport -s

SSID BSSID RSSI CHANNEL HT CC SECURITY (auth/unicast/group)

wtlan2 00:1e:2a:eb:ea:6e -74 6 N -- WPA2(PSK/AES/AES)

BTHub3-63CF 00:81:d8:68:0d:e2 -87 6 Y -- WPA(PSK/AES,TKIP/TKIP) WPA2(PSK/AES,TKIP/TKIP)

BTWiFi 02:81:d8:68:0d:e2 -88 6 Y -- NONE

Parry 30:46:9a:3b:e2:ea -85 6,+1 Y DE WPA(PSK/AES,TKIP/TKIP) WPA2(PSK/AES,TKIP/TKIP)

smartrouter 00:0e:f4:e7:c6:82 -88 6 Y -- WPA(PSK/AES,TKIP/TKIP) WPA2(PSK/AES,TKIP/TKIP)

dome 00:80:48:7a:7e:e4 -81 3 N -- WEP

HTC network 38:e7:d8:aa:bc:2d -77 11 N -- WPA(PSK/TKIP/TKIP)

TNCAPC276EF 58:98:35:c2:76:ef -61 11 Y -- WPA2(PSK/AES/AES)

BTHub3-8P32 00:81:d8:6c:2a:3a -47 11 Y -- WPA(PSK/AES,TKIP/TKIP) WPA2(PSK/AES,TKIP/TKIP)

BTWiFi-with-FON 12:81:d8:68:0d:e2 -83 6 Y -- NONE

TNCAP3CA8E7 a4:b1:e9:3c:a8:e7 -64 6 Y -- WPA2(PSK/AES/AES)

Nyx b2:b9:31:02:66:c9 -47 6 Y -- WPA2(PSK/AES/AES)

(The target network is BTHub3-8P32)

The mac has no problems connecting to any other wifi network.

I've been reading all the wifi problem theads, and my issue is the same as above. My MacBook Pro has been working fine for months and now it will only intermittantly connect before stalling, then when I try to reconnect, I get "the wifi network cannot be joined, try moving closer to your wireless router. Alternatively, run wireless diagnostics for troubleshooting."

I am right next to my wifi routers and have two SSIDs, one from the Frontier Modem/Router, and one from my Airport Extreme b/g/n running in bridge mode with my time machine disk. I used to be able to eventually get connected again, but today, I can't, so I've just run a GE to the Modem/Router. Basically, Wifi is non-functional. I may have broken hardware.

Dave

Above I mentioned that I had two WiFi base stations, my provider supplied NetGear Modem/Router and an Airport Extreme, to which my printer and backup disk are attached. I read in another forum that it seemed this problem was an 802.3n problem, so I configured the NetGear box to b/g and my mac connects to it just fine. So it seems it is a type n issue?

same problem!! so mad about it