I am trying to configure the ways of accessing K2 through arr reverse proxy. what I do is to create a site on iis, and then using url redirect module to modify the redirecting rules.

Now I am experiencing the issue, when access the url, windows will pop up the username password page, after 3 times input, an 401.01 error page returned. I am pretty sure the username and password is correct, and I tried to use different credentials had the same issue.

my k2 site is using windows authentication.

have you come accross the issue before? and if any solution regarding this?