diff --git a/lib/winpki/ldap.go b/lib/winpki/ldap.go
index 1e649a90ab1..98571957006 100644
--- a/lib/winpki/ldap.go
+++ b/lib/winpki/ldap.go
@@ -40,7 +40,7 @@ import (
 const (
 	// ldapDialTimeout is the timeout for dialing the LDAP server
 	// when making an initial connection
-	ldapDialTimeout = 15 * time.Second
+	ldapDialTimeout = 30 * time.Second
 
 	// ldapRequestTimeout is the timeout for making LDAP requests.
 	// It is larger than the dial timeout because LDAP queries in large