After migrating to new servers, security setting (administration > configuration settings > security settings > under login url) show the original DA URL and not the new DA.
Dx NetOps Performance Management any version
To resolve, edit the DA data source and assuming it has the correct hostname / IP for the target DA just click the 'Save' button and then re-check the security settings (administration > configuration settings > security settings > under login url). The DA URL should not be updated