PEP VPN down when ISP down at site A and B (Multiple Active WAN's)

I have a PepVPN runing from site A to site B
Peplink Balance ONE both sites, no pepfussion license, only Pep VPN

Site A:
WAN 1: ATT (Always-ON Prority 1)
WAN 2: Comcast (Always-ON Prority 1)
USB Modem: Verizon (Backup Priroity 2) Stanby state (Remain connected)

Site B:
WAN 1: ATT (Always-ON Prority 1)
WAN 2: WIMAX ISP (Always-ON Prority 1)
WAN 3: Hughes Net (Always-ON Prority 1)
WAN 4: Pepwave Transit DUO (ATT - Verizon) (Always-ON Prority 1)

During a major outage from ATT both sites WAN 1 went down but the Pelinks where not able to reestablish nor maintain the PepVPN connection using the remaining active WAN’s.

Site A originates the VPN having the remote IP address (WAN1) in the configuration tab.

What can be the reason the units where not able to reconnect the VPN using the active ISP connections?

Thank you

This is only a guess but it sounds like the ATT connections are the only ones using publically routable IP addresses and the rest are NAT’d.

With PepVPN only one WAN is active inside the tunnel at any given time. If that connection fails it will try to re-establish over the other WANs but if they are all using private NAT’d IP addresses it will never connect.

You could consider buying the SpeedFusion license and then you will be able to have multiple WANs active inside the tunnel at the same time.

Site A:
WAN 1: NAT FROM ROUTER
WAN 2: PUBLIC IP
USB Modem: NAT FROM ISP

Site B:
WAN 1: PUBLIC IP
WAN 2: PUBLIC IP
WAN 3: PUBLIC IP
WAN 4: NAT FROM ISP

Under PepVPN profile - “Remote IP Address / Host Names (Optional)” I only have WAN1 remote IP address, adding WAN2 and WAN3 addresses will help?

Please provide screenshots of Status > SpeedFusion for both Balance One. Below is an example of the screenshot.