—Packet Tracer
packet-tracer input inside tcp 10.200.4.106 64000 172.16.90.205 3389
—default login
admin
Admin123
–Set management IP on FMC
show -> Configure -> Expert
sudo /usr/local/sf/bin/configure-network
—Restart GUI of FMC
I had this issue, I fixed it by restarting the console from expert mode.
sudo /etc/rc.d/init.d/console restart