Hyper-V Server 2016 - HNV 1.0 - configuration lost after a while

Hi Expert,

Background and issue:

1. Hypervisor: Hyper-V Server 2016 (note that it's not Windows Server 2016)
2. Deployment Model:Standalone
3. Host Network: NIC teaming is used, and 2 physical NICs
4. Hyper-V Network Virtualization: 1.0 (just consider it's supported by Hyper-V Server 2016 since both HNV1 & HNV2 are supported by Windows Server 2016)
5. Want to implement network isolation by using HNV 1.0
6. run the following PowerShell command: 

New-NetVirtualizationLookupRecord -VirtualSubnetID "5001" -CustomerAddress "10.156.1.1" -ProviderAddress "172.31.153.101" -MACAddress "00155D971F27" -Rule "TranslationMethodEncap"

    7. after that, I can view the lookup record by running get-NetVirtualizationLookupRecord, but almost 3-5 minutes later, run get-NetVirtualizationLookupRecord again, no any output, seems that the configuration is totally lost.

Thanks in advance!

amoschb