Hi I have testing with my 2 modem for WIFI LOSS OR DISABLE when STANDBY or LOCKED
iDevice SETTING:
CERULAR DATA OFF
3G OFF
Results after locked 20mins:
DLINK MODEL: DSL-2640B which only availble wireless B/G
MODEM SETTING: WPA2-PERSONAL
MIXED B/G
CHANNEL: AUTO
iPhone 4 1 unit IOS 6.0.1 WORKING FINE
iPhone 4 1 unit IOS 5.1.1 WORKING FINE
iPad 1 1unit IOS5.1.1 WORKING FINE
iPad 3 1unit IOS6.0.1 WORKING FINE
iPhone 5 1unit IOS6.0.2 LOSS WIFI when STANDBY or LOCKED, gmail, line, whatsapp no pop up...
Results after locked 20mins:
TPLINK TL-MR3420 which support B/G/N
MODEM SETTING: WPA2-PERSONAL
MIXED B/G/N
CHANNEL: AUTO
iPhone 4 1 unit IOS 6.0.1 WORKING FINE
iPhone 4 1 unit IOS 5.1.1 WORKING FINE
iPad 1 1unit IOS5.1.1 WORKING FINE
iPad 3 1unit IOS6.0.1 WORKING FINE
iPhone 5 1unit IOS6.0.2 WORKING FINE, gmail, line, whatsapp pop up! WORKING!
BEFORE received my iPhone 5, it come with IOS6.0.1, i DID NOT Test anything direct UPDATE to IOS 6.0.2.
NIGHTMARE!!! Wifi keep disconnect and reconnect with my router! WIFI slow 0.22mb/s on my 4mb INTERNET!
WHAT I DO:...
DOWNLOAD and RESTORE IOS6.0.2, RESTORE FROM BACKUP NOT WORKING! slow wifi, disconnect...
RESTART iPhone 5 and RESTORE in DFU mode, SET as NEW NOT WORKING! slow wifi, disconnect...
...WANNA GIVE UP!
LAST I DO....
RESET NETWORK SETTING...
Celular and 3G OFF
BRIGHTNESS TURN TO MAX, DISABLE AUTO BRIGHTNESS
AUTO LOCK DISABLE
and OPEN WIFI Page and CONNECT to YOUR WIFI, LEAVE the WIFI Page reload and reload and reload for 10pm to next day 7am (go to sleep, leave it 9hours reloading), KEEP THE WIFI PAGE RELOAD AUTOMATIC and BRIGHTNESS to MAX...
OK! TURN OFF the WIFI, Shut Down iPhone with Power Button only, Start iPhone again...
Connect WIFI, SIGNAL before 1bar Now can detect 2bar...I dont know why...
WIFI did not drop and keep reconnect, stable! PROBLEM SOLVE!
SPEEDTEST back to 4mb/s as previous slow speedtest 0.22mb+/s only...
Now the Problem left is my iPhone 5 WIFI not support with my DLINK(wireless B/G only), I swap to TPLINK(wireless B/G/N), PROBLEM SOLVE, received PUSH MESSENGE(GMAIL, LINE, WHATSAPP) when iPhone Locked
DONT ASK ME WHY IT WORKING! I JUST A NORMAL USER...
Hope can help...GIVE ME a LIKE if WORKING...LOL