diff --git a/lib/isc/managers.c b/lib/isc/managers.c
index 5c73a7ef4c..a01a8bac7d 100644
--- a/lib/isc/managers.c
+++ b/lib/isc/managers.c
@@ -19,17 +19,9 @@
 
 void
 isc_managers_create(uint32_t workers) {
-	in_port_t port_low, port_high;
-
 	isc_loopmgr_create(isc_g_mctx, workers);
 	isc_netmgr_create(isc_g_mctx);
 	isc_rwlock_setworkers(workers);
-
-	isc_net_getportrange(AF_INET, &port_low, &port_high);
-	isc_netmgr_portrange(AF_INET, port_low, port_high);
-
-	isc_net_getportrange(AF_INET6, &port_low, &port_high);
-	isc_netmgr_portrange(AF_INET6, port_low, port_high);
 }
 
 void