TIA Admin "localhost refuses to connect" my experience

(1st sorry for my english)

I experimented several problems using that awfull TIA ADMIN. I spent many hours to manage to make it work so i hope this topic may help other.

My System :

• Windows 11 24H2
• TIA Admin V3 SP3 (Download here)
• Licence manager 6.2 Upd3 (Download here)

When I tried to use it this error happened :

This page can't be reached localhost refuses to connect.

What you need to check :

• You must be logged with a profile necessary having TIA openness group privilege. You can be administrator but its not necessary. (I also have TIA engineer and simatic HMI privilege)
• Using Windows 11 24H2, you need to install WMIC manually. (Microsoft page to do it)

Wrong or old thing to check :

• Changing broswer is not necessary . My TIA ADMIN is working with Chrome, Edge, Firefox and Brave.
• Change the link because of your language is not working  anymore. My ink is TIAAdminV3_SYSTEM.html
• "the thing" with script can't work with V3 (1. start_server.cmd, 2. start_chrome.cmd or start_firefox.cmd...)
• TLS protocol used are 1.2 and 1.3 (default setting)

Last thing : The login and password requested is your windows session login, not the siemens one. (that's really stupid i knnow...)

 (feel free to add informations since "official way" is silent for years now)

Good luck!

 This WMIC solved it. A Windows update must have decided to turn this option off. Thank you, sir.

D. Fort

Hello,

(1st sorry for my english)

I experimented several problems using that awfull TIA ADMIN. I spent many hours to manage to make it work so i hope this topic may help other.

My System :

• Windows 11 24H2
• TIA Admin V3 SP3 (Download here)
• Licence manager 6.2 Upd3 (Download here)

When I tried to use it this error happened :

This page can't be reached localhost refuses to connect.

Try the following:

Check connection

Check the proxy and firewall

ERR_CONNECTION_REFUSED

What you need to check :

• You must be logged with a profile necessary having TIA openness group privilege. You can be administrator but its not necessary. (I also have TIA engineer and simatic HMI privilege)
• Using Windows 11 24H2, you need to install WMIC manually. (Microsoft page to do it)

Wrong or old thing to check :

• Changing broswer is not necessary . My TIA ADMIN is working with Chrome, Edge, Firefox and Brave.
• Change the link because of your language is not working  anymore. My ink is TIAAdminV3_SYSTEM.html
• "the thing" with script can't work with V3 (1. start_server.cmd, 2. start_chrome.cmd or start_firefox.cmd...)
• TLS protocol used are 1.2 and 1.3 (default setting)

Last thing : The login and password requested is your windows session login, not the siemens one. (that's really stupid i knnow...)

 (feel free to add informations since "official way" is silent for years now)

Good luck!

The installation of WMIC solve it.

Thank You Mr D.Fort

Link for WMIC install guide:
https://www.elevenforum.com/t/add-or-remove-wmic-command-feature-in-windows-11.5119/