diff --git a/src/openvpn/options.c b/src/openvpn/options.c
index 631ac73..e793a96 100644
--- a/src/openvpn/options.c
+++ b/src/openvpn/options.c
@@ -8014,6 +8014,9 @@
         if (streq(p[1], "search-domains") && p[2])
         {
             dns_domain_list_append(&options->dns_options.search_domains, &p[2], &options->dns_options.gc);
+#ifdef _WIN32
+            options->tuntap_options.dhcp_options |= DHCP_OPTIONS_DHCP_REQUIRED;
+#endif
         }
         else if (streq(p[1], "server") && p[2] && p[3] && p[4])
         {
@@ -8090,6 +8093,9 @@
                 msg(msglevel, "--dns server %ld: unknown option type '%s' or missing or unknown parameter", priority, p[3]);
                 goto err;
             }
+#ifdef _WIN32
+            options->tuntap_options.dhcp_options |= DHCP_OPTIONS_DHCP_OPTIONAL;
+#endif
         }
         else
         {