Cyberoam: It's Powered, Still Cannot Ping Cyberoam

Navigate to Firewall > Local ACLs
Tick the ICMP check box in the LAN zone under Network Services

Cyberoam: Does It Act Funny?

You are trying to login to the Cyberoam client using the web browser and it goes into an endless "please wait logging you in" session

Sometimes restarting the Cyberoam appliance will do the magic.