I found a second device, Roku, was dropping connections repeatedly. I found a setting on my NetGear router LAN Setup that was disabled. The default is RIP-2 so I updated to the default (as close as I could guess) and now all connections, including the SecureLine VPN is reliable and consistent. Here is the help detail about this setting:
"RIP Version: This controls the format and the broadcasting method of the RIP packets that the router sends. (It recognizes both formats when receiving.) By default, this is set for RIP-2.
RIP-1 is universally supported. RIP-2 carries more information.
RIP Direction: RIP (Routing Information Protocol, RFC1058 and RFC1389) allows a router to exchange routing information with other routers. The RIP Direction selection controls how the router sends and receives RIP packets. None is the default.
When set to None, the router will not send any RIP packets and will ignore any RIP packets received. When set to In Only, it will incorporate the RIP information that it receives. When set to Both, it will incorporate the RIP information that it receives and broadcast its routing table periodically.
Note: Multicasting can reduce the load on non-router machines because they do not listen to the RIP multicast address and will not receive the RIP packets. However, if one router uses multicasting, then all routers on your network must use multicasting."