A quick overview of my network. I have a main location at my home where I have a Watchguard XTM525 firewall. From here, I have three Sit to Site VPNs. One goes to a Watchguard 26w, another goes to a virtual pfSense firewall, and the third goes to a Mikrotik RB951G-2HnD (6.38.5). The VPNs to the 26w and the pfSense firewall I never have any issues with.
But the one to the Mikrotik, for reasons I haven't been able to figure out, randomly stops passing traffic, and the only way I can get it to pass traffic again is to go to IP > IPSec > Remote Peers, double click the peer and click 'Kill connections'. Once I do that, the tunnel is re-established and it passes traffic normally again.
I've looked over the config multiple times trying to figure out what I might be missing, but I haven't been able to find anything that stands out. Does anyone have any suggestions as to wha tI might be missing that would fix this issue?