refresh error

Saw this continuing error when zypper was refreshing repositories: Problem retrieving files from 'repo-src-oss'. Download (curl) error for 'https://mirrorcache-us-east.opensuse.org/tumbleweed/repo/src-oss/repodata/re...': Error code: Connection failed Error message: Could not resolve host: downloadcontent2.opensuse.orgsource I wonder whether this is just a temporary problem or whether the mirror url has changed ? Thanks