Schedule refresh is not working due to Invalid connection credentials

[nzan]

I encounter below error

Previously I'm creating a dashboard in power BI and connect to Sharepoint List. Its working fine with the previous version of data gateway. I already update my on-premises Data gateway and desktop power bi but the error message keeps saying my credential is not correct. 

Please advise how do I fix this issue

[v-huizhn-msft]

Hi @nzan,

After update the gateway, please confirm the following items and check if it works fine.

1. Please check you have signed up the gateway using correct account succeefully.

2. In gateway data source and datasource authentication, be sure to validate the information provided for that data source.

Best Regards,
Angelia

[Anonymous]

Is your gateway connecting to SharePoint using a Person's account?  Does your network require people to change their passwords regularly?  Has that person changed their password?

Recommendation:  Get a service account created whose password is set to not change. Grant the service account access to the necessary resources and load that service account credentials into your Gateway settings.

[nzan]

Sorry for late reply. Yep its using my ID and recently i try to connect to different sharepoint site in the same server using same credential and its work.

im still wondering why my 1st sharepoint site having credential issue.