TechSim question

in CCNA & CCENT
Can anybody explain this?
TeRouter1>sh interface
% Command not supported
TeRouter1>show interface
% Command not supported
TeRouter1>sh int
% Command not supported
TeRouter1>en
Password:
TeRouter1#sh int
% Command not supported
TeRouter1#show interface
% Command not supported
TeRouter1#config t
% Command not supported
TeRouter1#config terminal
% Command not supported
TeRouter1#configure terminal
% Command not supported
TeRouter1#
Soon after the above typings, the sim proceeded to terminate my session.
I know it works because a few minutes before I ran thru the entire sim with no problems. It began acting up when I began trying to use "some of the other supported commands". Now the basic commands seem broken.
TeRouter1>sh interface
% Command not supported
TeRouter1>show interface
% Command not supported
TeRouter1>sh int
% Command not supported
TeRouter1>en
Password:
TeRouter1#sh int
% Command not supported
TeRouter1#show interface
% Command not supported
TeRouter1#config t
% Command not supported
TeRouter1#config terminal
% Command not supported
TeRouter1#configure terminal
% Command not supported
TeRouter1#
Soon after the above typings, the sim proceeded to terminate my session.
I know it works because a few minutes before I ran thru the entire sim with no problems. It began acting up when I began trying to use "some of the other supported commands". Now the basic commands seem broken.
Comments
CCNP R&S - In Progress...
CCIE Security - Future...