Hi The_guroo_2,
You can log the session on your terminal application and run the following commands:
debug cry condition peer ipv4 <ip> --Router
debug cry condition peer <ip> --ASA
ASA
debug cry isakmp sa 255
debug cry ipsec sa 255
Router:
debug cry isakmp
debug cry ipsec
By logging the session even if the session gets stock all the outputs are going to a file so you can open them after the screen comes back.
Hope this info helps!!
Rate if helps you!!
-JP-