You haven't given us much to go on. You might like to consider the following steps:

• Figure out what operating system you are using.
• Manually perform the steps to connect to your wireless network.
• Perform some searches into code available. I found 2 modules on CPAN with a search on "WPA", for example.
• Convert those steps into a script.
• Come back should you have specific problems to solve.

Sane operating systems tend to come with scripts suitable to connect to networks, needing only some editing of a configuration file. I suspect Windows would be harder to script, but maybe some work with Win32::OLE or indeed PowerShell might do the trick.

Also look at How (Not) To Ask A Question.

thanks for the answer but tell me what can i do in linux(ubuntu) not windows

wpa-supplicant wont work because it cant configure in mixed mode ie it can setup wpa or wpa2-psk individually.

i had already checked this but thanks for the help

After googling for ubuntu mixed mode wireless it seems there may be a bug, involving the kernel wireless drivers not being able to handle mixed mode. I don't think Perl can overcome incomplete drivers.

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I'm not really a human, but I play one on earth.
Old Perl Programmer Haiku ................... flash japh