Here's a better patch that removes the extra calls to iwconfig. Turns out using named arguments with defaults in python method definitions doesn't play well with dbus. So if you don't already have an iwconfig output, just call GetApBssid('') instead of GetApBssid(). I see this is done elsewhere in the codebase.

=== modified file 'gtk/gui.py'
--- gtk/gui.py	2013-01-23 19:38:10 +0000
+++ gtk/gui.py	2014-05-29 00:09:39 +0000
@@ -614,7 +614,7 @@
             state in [misc.WIRED, misc.WIRELESS]
         )
         if self.prev_state != state or force_check:
-            apbssid = wireless.GetApBssid()
+            apbssid = wireless.GetApBssid('')
             for entry in chain(self.network_list, self.wired_network_box):
                 if hasattr(entry, "update_connect_button"):
                     entry.update_connect_button(state, apbssid)

=== modified file 'gtk/netentry.py'
--- gtk/netentry.py	2012-11-28 15:54:31 +0000
+++ gtk/netentry.py	2014-05-29 00:09:39 +0000
@@ -1110,7 +1110,7 @@
         if to_bool(self.format_entry(self.networkID, "never")):
             self.connect_button.set_sensitive(False)
         if not apbssid:
-            apbssid = wireless.GetApBssid()
+            apbssid = wireless.GetApBssid('')
         if state == misc.WIRELESS and \
            apbssid == wireless.GetWirelessProperty(self.networkID, "bssid"):
             self.disconnect_button.show()

=== modified file 'wicd/monitor.py'
--- wicd/monitor.py	2012-11-17 00:07:08 +0000
+++ wicd/monitor.py	2014-05-29 00:09:46 +0000
@@ -178,7 +178,7 @@
             self.iwconfig = ''
         # Reset this, just in case.
         self.tried_reconnect = False
-        bssid = wireless.GetApBssid()
+        bssid = wireless.GetApBssid('')
         if not bssid:
             return False
 
=== modified file 'wicd/networking.py'
--- wicd/networking.py	2013-02-01 21:14:15 +0000
+++ wicd/networking.py	2014-05-28 23:55:05 +0000
@@ -710,7 +710,7 @@
             return self.connecting_thread.network['essid']
         return self.wiface.GetCurrentNetwork(iwconfig)
     
-    def GetBSSID(self):
+    def GetBSSID(self, iwconfig=""):
         """ Get the BSSID of the current access point. 
         
         Returns:
@@ -718,7 +718,7 @@
         None the BSSID can't be found.
         
         """
-        return self.wiface.GetBSSID()
+        return self.wiface.GetBSSID(iwconfig)
 
     def GetCurrentBitrate(self, iwconfig):
         """ Get the current bitrate of the interface. 

=== modified file 'wicd/wicd-daemon.py'
--- wicd/wicd-daemon.py	2012-11-22 08:02:04 +0000
+++ wicd/wicd-daemon.py	2014-05-29 00:07:28 +0000
@@ -1045,9 +1045,9 @@
         return len(self.LastScan)
 
     @dbus.service.method('org.wicd.daemon.wireless')
-    def GetApBssid(self):
+    def GetApBssid(self, iwconfig):
         """ Gets the MAC address for the active network. """
-        return self.wifi.GetBSSID()
+        return self.wifi.GetBSSID(iwconfig)
 
     @dbus.service.method('org.wicd.daemon.wireless')
     def GetCurrentBitrate(self, iwconfig):
@@ -1177,8 +1177,9 @@
     def GetCurrentNetworkID(self, iwconfig=None):
         """ Returns the id of the current network, or -1 if its not found. """
         currentESSID = self.GetCurrentNetwork(iwconfig)
+        currentBSSID = self.GetApBssid(iwconfig)
         for x in xrange(0, len(self.LastScan)):
-            if self.LastScan[x]['essid'] == currentESSID:
+            if self.LastScan[x]['essid'] == currentESSID and self.LastScan[x]['bssid'] == currentBSSID:
                 return x
         if self.debug_mode:
             print 'GetCurrentNetworkID: Returning -1, current network not found'