Hello,
I’m completely desperate with this issue and hoping for some guidance.
I have set up a Ubiquiti Site-to-Site VPN between two locations using Site Magic SD-WAN VPN:
- Location A: UDM Pro (Subnet: 192.168.5.0/24)
- Location B: UCG Ultra (Subnet: 192.168.25.0/24)
The VPN establishes successfully, and from Location B, I can ping a NAS at Location A. However, I cannot ping anything at Location B from Location A.
To troubleshoot, I added a third location:
- Location C: UDM Pro (Subnet: 10.50.202.0/24)
With Location C, I can ping both ways between Location A and Location C, but I still cannot ping Location B from either A or C.
Additional troubleshooting steps I’ve tried:
- Successfully set up Site-to-Site IPSec, but the issue persists.
- Added static routes on both sites, but no improvement.
- Traceroute from NAS (shell) at Location A shows countless hops to B, while the reverse works instantly.
I’m at a loss here—any ideas on what might be causing this asymmetric behavior?
Thanks in advance for your help!