Windows 7 Wi-fi does not turn on automatically

I've a nokia siemens network 1600 modem and a BSNL broadband. The moment i switch it on the internet on my desktop starts working fine but the wi-di does not switch on automatically as in i cannot see the name of my wi-fi on my cell phone or any other device even though the green light under WLAN is blinking. The only way to switch it on is go to 192.168.1.1 > Wireless> Basic> SAVE. So every time i need to use wi-fi I need to first go through the above mentioned procedure. I searched many forums and rechecked my wlan settings but nothing worked. A detail of the Wireless settings under DSL router is as follows :

• Enable Wireless- Ticked
• Hide Access Point- Not ticked
  
• Clients Isolation- Not ticked
• Disable WWM Advertise- Not ticked
• SSID name and country have been listed
• Max clients: 128

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