PSPICE-FOR-TI: Authentication when downloading "PSpice for Ti"

Part Number: PSPICE-FOR-TI

Tool/software:

When downloading "Pspice for Ti," I'm asked for my "Username" and "Password" (see Photo 1). When I enter them, I get the message "Unable to communicate with proxy server using entered credentials" (see Photo 2), and I can't download it. What should I do?

Photo1

Photo2