Q: Updated to 10.7.3. Wifi drops constantly.

Well, we will need more information in order to try and help you. If you feel so inclined, I would do/answer the following:

1. What is the make of your Mac (year, etc. Use System Info report to see this).

2. What kind of Wireless Router are you using?

3. Have you tried using the combo updater? You can get it here: http://support.apple.com/kb/DL1484

If you download and update via the combo updater and you still have connection issues, can you verify the driver info by running a system info report and post the WiFi section info into this thread? Here is what mine looks like on my iMac running 10.7.3:

Software Versions:

  CoreWLAN:          2.1.2 (212.1)

  CoreWLANKit:          1.0.2 (102.2)

  Menu Extra:          7.0.2 (702.1)

  configd plug-in:          7.1.2 (712.1)

  System Profiler:          7.0 (700.3)

  IO80211 Family:          4.1.2 (412.2)

  WiFi Diagnostics:          1.0.1 (101.1)

  AirPort Utility:          6.0 (600.92)

  Interfaces:

en1:

  Card Type:          AirPort Extreme  (0x168C, 0x9A)

  Firmware Version:          Atheros 9380: 4.0.61.4-P2P

  MAC Address:          10:9a:dd:9e:a9:96

  Locale:          FCC

  Country Code:

  Supported Channels:          1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 36, 40, 44, 48, 52, 56, 60, 64, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 149, 153, 157, 161, 165

  Wake On Wireless:          Supported

  AirDrop:          Supported

  Status:          Network Service Inactive

The combo updater contains all the updates since 10.7.0.

Well if you are happy and things are working fine, maybe you should wait to see how 10.7.3 shakes out for other people with like machines.

This is a good case for maintaining a clone along with time machine.

You can apply an update to a clone without disturbing your prime

disk and try things out.

  Softwareversionen:

  CoreWLAN:          2.1.2 (212.1)

  CoreWLANKit:          1.0.2 (102.2)

  Menüerweiterung:          7.0.2 (702.1)

  configd Plug-in:          7.1.2 (712.1)

  System-Profiler:          7.0 (700.3)

  IO80211-Familie:          4.1.2 (412.2)

  WiFi-Diagnose:          1.0.1 (101.1)

  AirPort-Dienstprogramm:          6.0 (600.92)

  Schnittstellen:

en1:

  Kartentyp:          AirPort Extreme  (0x168C, 0x9A)

  Firmware-Version:          Atheros 9380: 4.0.61.4-P2P

  MAC-Adresse:          e4:ce:8f:58:15:7e

  Locale:          ETSI

  Länderkennung:          DE

  Unterstützte Kanäle:          1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 36, 40, 44, 48, 52, 56, 60, 64, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140

  Ruhezustand bei drahtlosem Zugriff beenden:          Unterstützt

  AirDrop:          Unterstützt

  Status:          Verbunden

  Aktuelle Netzwerkinformationen:

STNET:

  PHY-Modus:          802.11n

  BSSID:          00:1f:3f:32:1b:3d

  Kanal:          13

  Länderkennung:          DE

  Netzwerktyp:          Infrastruktur

  Sicherheit:          Persönlicher WPA2

  Signal / Störungen:          -55 dBm / -99 dBm

  Senderate:          130

WIFI Connection BUG after Sleep Mode Mac OS X 10.7.3

imac24 mid 2007 - no Problem atm

macbook pro 2011 - no Problem atm

iMac 27 mid 2011 - EVERY WAKEUP no WIFI suddenly WIFI hanging  (3 Times per Day)

iMac 27 mid 2011 - EVERY WAKEUP no WIFI suddenly WIFI hanging (3 Times per Day)

iMac 27 mid 2011 - EVERY WAKEUP no WIFI suddenly WIFI hanging (3 Times per Day)

No WIFI Problem with Bootcamp/Windows 7

IOS no WIFI Problem

WLAN FritzBox 7270 or 7390 (newest firmware)

gemecker,

Open a terminal and run

sudo /System/Library/PrivateFrameworks/Apple80211.framework/Resources/airport -s

while you are connected to your frtizbox. Then post the results.

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

                           STNET 00:1f:3f:32:1b:3d -55  13      Y  -- WPA2(PSK/AES/AES)

Intesting. Is that whole output?

Last login: Thu Feb  2 17:26:54 on console

ktimac:~ KTiMac$ sudo /System/Library/PrivateFrameworks/Apple80211.framework/Resources/airport -s

WARNING: Improper use of the sudo command could lead to data loss

or the deletion of important system files. Please double-check your

typing when using sudo. Type "man sudo" for more information.

To proceed, enter your password, or type Ctrl-C to abort.

Password:

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

                 BinDrinIhrNicht bc:05:43:7c:f9:63 -80  1       Y  -- WPA(PSK/TKIP/TKIP) WPA2(PSK/AES/TKIP)

                     WLAN-42B823 bc:05:43:a4:d4:f7 -70  1       Y  DE WPA(PSK/TKIP/TKIP) WPA2(PSK/AES/TKIP)

                           STNET 00:1f:3f:32:1b:3d -55  13      Y  -- WPA2(PSK/AES/AES)

                     BinDrinGast a2:05:43:7c:f9:63 -82  1       Y  -- WPA(PSK/TKIP/TKIP) WPA2(PSK/AES/TKIP)

         FRITZ!Box Fon WLAN 7141 00:04:0e:d2:d5:8f -83  8       N  -- WPA(PSK/TKIP/TKIP)

                  EasyBox-15DD58 7c:4f:b5:15:dd:48 -90  1       Y  DE WPA(PSK/TKIP,AES/TKIP) WPA2(PSK/TKIP,AES/TKIP)

ktimac:~ KTiMac$

Yes, only a few other networks are in the whole output.