# Loop back connection fault

**URL:** <https://forum.inductiveautomation.com/t/loop-back-connection-fault/35018>\
**Category:** Ignition\
**Created:** [May 25, 2020, 5:40pm UTC](https://forum.inductiveautomation.com/t/loop-back-connection-fault/35018 "2020-05-25T17:40:53Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![santoshb189](https://avatars.discourse-cdn.com/v4/letter/s/74df32/32.png) [@santoshb189](https://forum.inductiveautomation.com/u/santoshb189)\
**Post date:** [May 25, 2020, 5:40pm UTC](https://forum.inductiveautomation.com/t/loop-back-connection-fault/35018/1 "2020-05-25T17:40:53Z")

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I am facing this loop back connection issue. But I am using admin and password credentials for the project still it says bad user access denied. So, what credentials are required for this connection to be good.

 ![IgnitionConnectionError](https://us1.discourse-cdn.com/inductiveautomation/original/2X/f/fd5fe3588ae1067a873161e37a23655a9ed5c8ed.png)

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**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\
**Post date:** [May 25, 2020, 5:47pm UTC](https://forum.inductiveautomation.com/t/loop-back-connection-fault/35018/2 "2020-05-25T17:47:18Z")

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> [@santoshb189](#):
>
> So, what credentials are required for this connection to be good.

It depends on the authentication profile you've configured the server to use.

In a default install it uses its own profile and the username/password is "opcuauser" / "password".

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<div class="post-metadata">

**Author:** ![santoshb189](https://avatars.discourse-cdn.com/v4/letter/s/74df32/32.png) [@santoshb189](https://forum.inductiveautomation.com/u/santoshb189)\
**Post date:** [May 25, 2020, 6:17pm UTC](https://forum.inductiveautomation.com/t/loop-back-connection-fault/35018/3 "2020-05-25T18:17:33Z")

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Thanks Kevin. As it was default install opcuauser was the credential. Since I have logged into the webserver with admin and password, there was no connection . So, I have changed the username to admin and now it is working. Thanks for the help.

 ![IgnitionConnection](https://us1.discourse-cdn.com/inductiveautomation/original/2X/6/65a91af8d7bd20ed82a15bf0a19d6107109642b0.png)