Hi Daan, CLOUDSTACK-6485 is fixed by you and caused the regression for CLOUDSTACK-6084 and CLOUDSTACK-6548.
vpcId param changed to null causing the issue. After reverting this private gateway is working fine. https://git-wip-us.apache.org/repos/asf?p=cloudstack.git;a=blobdiff;f=server/src/com/cloud/network/vpc/VpcManagerImpl.java;h=5263d56f531178f3362a50c25b2e66b8ab6f91fc;hp=0c33fc606bc04c253dc6d58c6ca56f0522e8b171;hb=3bd594c;hpb=881792991ecbce5538939e2917cbf6582257ad43 Can you please looking to it. Thanks, Jayapal