Title: (407) Proxy Authentication required error
Last modified: June 27, 2019

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# (407) Proxy Authentication required error

 *  [hawkerstechnologies](https://wordpress.org/support/users/hawkerstechnologies/)
 * (@hawkerstechnologies)
 * [6 years, 11 months ago](https://wordpress.org/support/topic/407-proxy-authentication-required-error/)
 * Hi, i am using SLM in my windows application. In my computer and at one of my
   clients computer, i donot have any issue with activating and validating license
   from within my windows application but in another client comiuter we are getting
   this 407 proxy error.
    did anyone get this error? how to resolve it? can we add
   authentication to this SLM?

Viewing 1 replies (of 1 total)

 *  Plugin Support [mbrsolution](https://wordpress.org/support/users/mbrsolution/)
 * (@mbrsolution)
 * [6 years, 11 months ago](https://wordpress.org/support/topic/407-proxy-authentication-required-error/#post-11683739)
 * Hi, thank you for reaching out to us.
 * > but in another clients computer we are getting this 407 proxy error.
 * I am wondering if this is related to a firewall setting or a proxy server setting.
 * Kind regards

Viewing 1 replies (of 1 total)

The topic ‘(407) Proxy Authentication required error’ is closed to new replies.

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 * 1 reply
 * 2 participants
 * Last reply from: [mbrsolution](https://wordpress.org/support/users/mbrsolution/)
 * Last activity: [6 years, 11 months ago](https://wordpress.org/support/topic/407-proxy-authentication-required-error/#post-11683739)
 * Status: not resolved