diff --git a/tools/xen/devstackubuntupreseed.cfg b/tools/xen/devstackubuntupreseed.cfg
index c559b1e9f5..6a1ae89fd9 100644
--- a/tools/xen/devstackubuntupreseed.cfg
+++ b/tools/xen/devstackubuntupreseed.cfg
@@ -34,7 +34,7 @@ d-i netcfg/choose_interface select auto
 
 # If you have a slow dhcp server and the installer times out waiting for
 # it, this might be useful.
-#d-i netcfg/dhcp_timeout string 60
+d-i netcfg/dhcp_timeout string 120
 
 # If you prefer to configure the network manually, uncomment this line and
 # the static network configuration below.