diff --git a/src/vmm_mad/remotes/lib/vcenter_driver/virtual_machine.rb b/src/vmm_mad/remotes/lib/vcenter_driver/virtual_machine.rb
index 4f6eaafac9..c323959927 100644
--- a/src/vmm_mad/remotes/lib/vcenter_driver/virtual_machine.rb
+++ b/src/vmm_mad/remotes/lib/vcenter_driver/virtual_machine.rb
@@ -1494,7 +1494,7 @@ module VCenterDriver
             end
 
             card_spec = {
-                :key => 0,
+                :key => Time.now.utc.strftime('%Y%m%d%M%S%L').to_i,
                 :deviceInfo => {
                     :label => "net" + card_num.to_s,
                     :summary => pg_name
@@ -1587,7 +1587,7 @@ module VCenterDriver
             end
 
             card_spec = {
-                :key => 0,
+                :key => Time.now.utc.strftime('%Y%m%d%M%S%L').to_i,
                 :deviceInfo => {
                     :label => "net" + card_num.to_s,
                     :summary => pg_name