Help Wifi goes connection error state

[mshankars]

Hi,
I am using Samsung Galaxy 3(Apollo). In recent days, I am getting a strange issue while connecting thru wlan.
It says 'connection error' if I keep the phone idle for sometime..
I have enabled wpa2 security and MAC filtering in my wirless router.
Here is the log snippet from my phone:
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02-02 13:13:54.843 I/WifiHW ( 2263): wifi_unload_driver: exit
02-02 13:13:54.908 V/SettingsProvider( 2263): secure <- value=0 name=wifi_on
02-02 13:13:54.908 V/SettingsProvider( 2263): property: sys.settings_secure_version=29
02-02 13:13:54.918 I/KeyInputQueue( 2263): Input event
02-02 13:13:54.918 D/KeyInputQueue( 2263): screenCaptureKeyFlag setting 1
02-02 13:13:54.918 V/WindowManager( 2263): Dsptch to Window{4603d0b8 StatusBarExpanded paused=false}
02-02 13:13:54.923 V/SettingsProvider( 2263): notifying: content://settings/secure/wifi_on
02-02 13:13:54.928 W/KeyCharacterMap( 2263): Can't open keycharmap file
02-02 13:13:54.928 W/KeyCharacterMap( 2263): Error loading keycharmap file '/system/usr/keychars/qt602240_ts_input.kcm.bin'. hw.keyboards.65536.devname='qt602240_ts_input'
02-02 13:13:54.928 W/KeyCharacterMap( 2263): Using default keymap: /system/usr/keychars/qwerty.kcm.bin
02-02 13:13:55.003 I/WifiHW ( 2263): [WIFI] Load Driver
02-02 13:13:55.003 I/WifiHW ( 2263): [WiFi.c] insmod() Start!!
02-02 13:13:55.033 I/WifiHW ( 2263): [WiFi.c] start init_module() Start!!
02-02 13:13:55.218 I/DBG_WSS_DM( 7495): [wssStartService.java Line:1413] ProtoIsWIFIConnected WiFi DisConnected
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Appreciating your help!
Cheers,
Shankar.