IASUCatalogURL
sntp -S -S time.apple.com
failed to load
→ swscan.apple.com
URLhttps:
to .sucatalog
→ Edit → Copyhttps
to http
(check with nvram -p
)nvram IASUCatalogURL="http://swscan.apple.com/content/catalogs/others/index-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog"