1:1 NAT forwarding error

[Pinewood]

Recently I had to do a 1:1 NAT forwarding for a new server. So, I deleted the unused entry and tried to add a new one. I already have 13 more NAT forwarding entries and everything works fine.

A message appeared saying: 

Tried adding exactly the same 1:1 NAT mapping that I previously deleted and still the message was the same. Tried playing with it and every time I got the same message. I can't add any NAT mapping at the moment. I have restarted Meraki MX100 but nothing happened.

Any ideas on what the problem is?

[ww]

Sometimes you need to remove some config first.

Do you have a invalid bgp peer setup at the site-to-site vpn settings?

[Brash]

It sounds like you have BGP config that was valid when originally entered, but for whatever reason is no longer valid.

You'll need to identify and remove the invalid BGP neighbors before you can save you NAT config.