I have 2x c1921( and I only get 15Mbps throughput over IPSec .
routers have datak9 and securityk9 licenses.
I found notation in datasheet :
High performance with integrated services
• The Cisco 1900 Series enables deployment in high-speed WAN environments with concurrent services enabled up to 15 Mbps.
Is above limit related to crypto engine in c1921?