VPN issue (Flex 700H / NSG50) after Nebula update

DanniKool

I don't know if it is related to Nebula update 18.30 (build 250325.0130) but i have a VPN site-to-site connection between a USG Flex 700H and a NSG50 that is no longer working.

Flex 700H says connected.

NSG50 has a status of disconnected.

I can't ping remote sites.

Zyxel_Judy

Hi @DanniKool ,

To better support you, please enable Zyxel support and provide us with the name of your Nebula organization/site here or via the private message by clinking to my account > Message.

DanniKool

Private message sent

Zyxel_Judy

Hi @DanniKool ,

It seems there is an issue when Nebula pushes the VPN configuration to the NSG50. We recommend removing the NSG50 from the site and adding it again to see if the issue is resolved.

Note: Please be aware that the NSG50 model has reached its EOL status. For optimal performance and support, we recommend exploring our current firewall offerings here:

https://www.zyxel.com/us/en-us/products/next-gen-firewall

DanniKool

Removing and adding the NSG50 did not resolve the issue.

What to do?

DanniKool

Hi Judy

I have just replaced the NSG50 at the customer site with a USG Flex 100H ;-)

Zyxel_Judy

Hi @DanniKool ,

Thanks for sharing the updated information. Please don't hesitate to reach out if you need any assistance with your VPN connection after replacing the device.