# How to set up and use CPE authentication with the ACS?

**URL:** <https://forum.genieacs.com/t/how-to-set-up-and-use-cpe-authentication-with-the-acs/4387>\
**Category:** Uncategorized\
**Created:** [August 21, 2023, 5:06pm UTC](https://forum.genieacs.com/t/how-to-set-up-and-use-cpe-authentication-with-the-acs/4387 "2023-08-21T17:06:38Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![baptiste](https://avatars.discourse-cdn.com/v4/letter/b/cab0a1/32.png) [@baptiste](https://forum.genieacs.com/u/baptiste)\
**Post date:** [August 21, 2023, 5:06pm UTC](https://forum.genieacs.com/t/how-to-set-up-and-use-cpe-authentication-with-the-acs/4387/1 "2023-08-21T17:06:38Z")

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Hello,

I’m new to GenieACS. I managed to install the server on Ubuntu Server following the official documentation. I successfully connected my initial devices to my server. There’s one device that requires me to enter a username and password. I’ve spent at least 3 hours searching online without being able to solve my issue.

Here’s the error I’m encountering:  
faultCode: “9003”  
faultString: Invalid arguments  
setParameterValuesFault:

- parameterName: InternetGatewayDevice.ManagementServer.ConnectionRequestPassword  
faultCode: “9007”  
faultString: Invalid parameter value
- parameterName: InternetGatewayDevice.ManagementServer.ConnectionRequestUsername  
faultCode: “9007”  
faultString: Invalid parameter value
- parameterName: InternetGatewayDevice.ManagementServer.PeriodicInformInterval  
faultCode: “9007”  
faultString: Invalid parameter value
- parameterName: InternetGatewayDevice.ManagementServer.PeriodicInformTime  
faultCode: “9007”  
faultString: Invalid parameter value

When I create this new configuration “cwmp.auth” with the value “false,” I no longer have an error, but my device is still not reachable.

You’re very welcome for the help 🙂