I have the same problem mentioned in posts #11, #25, #81, #88 and #93.
The Setup:
Site A: AX-88U OpenVPN Server, Merlin 3004.388.8
Site B: AX-68U OpenVPN Client, Merlin 3004.388.8, (Lan only. No redirect Internet i.e. no Killswitch rules should apply).
Site C: AX-55 OpenVPN Client, Stock...