Hi and Good day to All, Just wondering if there's anyone encountered the same site-to-site VPN issue that I am currently having. I have two MXs (different geographic locations), and everything worked as usual. But since Thursday, I can't connect to the local network of the other end and vice versa. Looking at the VPN status all seems to be working ok (i.e. VPN Registry Connected, WAN appliance has publicly accessible IPs, Encrypted using IPsec and AES) with no error of any sort. I can also ping each other's public IP addresses from both MX's end. Even Meraki Support has confirmed that I have established a connection and that the issue could be ; a.) ISP, or b.) there might be a blockade on the supposed advertised subnet. The situation is quite peculiar because at times it functioned properly, but then unexpectedly failed (for instance, last night the VPN connected, and this morning it disconnected again). Notable Information: I've noticed that some of the local VLANs on both sides have the same (VLAN and IP block). However, those VLAN IDs are not advertised to the site-to-site VPN. Could this subnet overlap be affecting our connection stability? Also, I am using IKEv1, would there be a difference if I switch to IKEv2? Your feedback and suggestions are highly appreciated. Thank you All.
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