diff --git a/lib/dns/resolver.c b/lib/dns/resolver.c
index 60cac293cb..4fe2d908f6 100644
--- a/lib/dns/resolver.c
+++ b/lib/dns/resolver.c
@@ -1920,7 +1920,9 @@ resquery_senddone(isc_result_t eresult, isc_region_t *region, void *arg) {
 	case ISC_R_SHUTTINGDOWN:
 		break;
 
+	case ISC_R_HOSTDOWN:
 	case ISC_R_HOSTUNREACH:
+	case ISC_R_NETDOWN:
 	case ISC_R_NETUNREACH:
 	case ISC_R_NOPERM:
 	case ISC_R_ADDRNOTAVAIL:
@@ -2994,8 +2996,10 @@ resquery_connected(isc_result_t eresult, isc_region_t *region, void *arg) {
 		fctx_done_detach(&fctx, eresult);
 		break;
 
-	case ISC_R_NETUNREACH:
+	case ISC_R_HOSTDOWN:
 	case ISC_R_HOSTUNREACH:
+	case ISC_R_NETDOWN:
+	case ISC_R_NETUNREACH:
 	case ISC_R_CONNREFUSED:
 	case ISC_R_NOPERM:
 	case ISC_R_ADDRNOTAVAIL:
@@ -8175,7 +8179,9 @@ rctx_dispfail(respctx_t *rctx) {
 	 */
 	switch (rctx->result) {
 	case ISC_R_EOF:
+	case ISC_R_HOSTDOWN:
 	case ISC_R_HOSTUNREACH:
+	case ISC_R_NETDOWN:
 	case ISC_R_NETUNREACH:
 	case ISC_R_CONNREFUSED:
 	case ISC_R_CONNECTIONRESET: