The server says 
WWW-Authenticate: NTLM

[download]

to which LWP adds 

Client-Warning: Unsupported authentication scheme 'ntlm'

[download]

Use LWP::Authen::Ntlm as I previously mentioned.

It looks like it also supports the less secure Basic authentication. But since you need to provide the credentials using the credentials method either way, use the more secure ::Ntlm.

PS - On PerlMonks, you'll save yourself trouble by placing computer text (code, data, output) in <c>...</c> tags. They handle line breaks and escaping of special characters for you.

In reply to Re^3: WWW::Mechanize Problem by ikegami
in thread WWW::Mechanize Problem by venkatesan_G02

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