I have a VPN setup that I am running into a few issues with. I am using a uc520 router with the 8 port switch so I have both interface vlans and BVIs. My VPN works great and consistent with reaching all hosts on the inside and voip networks but I cannot reach the routers two interfaces, either of the BVIs. Everyone once in a while, like 1 out of 25 attempts I am able to ping the actual BVI. Any help appreciated. Thanks in advance.