CRLoader Invalid appliance:Invalid appliance: Hardware checksum mismatch

Hello Leonel Zenil,

Greetings!

The device is EOL and the error which you are receiving suggest hardware issue with the firewall. This cannot be recovered. 

I could thank you...

Via console using PuTTY

This is applicable for Sophos Firewall 17.5 and later.

1. Sign in using PuTTY.
2. Enter the incorrect password for the initial prompt.
3. Enter the uppercase command RESET in the second password prompt.
4. Select 4. Reset password for admin user.
5. Enter y and press Enter.

......
IN MY cyberoam (CR 100iNG) there is no option 4

select option 3

everything is reset

USER:admin
PASS:admin

I HOPE IT HELPS

I could thank you...

Via console using PuTTY

This is applicable for Sophos Firewall 17.5 and later.

1. Sign in using PuTTY.
2. Enter the incorrect password for the initial prompt.
3. Enter the uppercase command RESET in the second password prompt.
4. Select 4. Reset password for admin user.
5. Enter y and press Enter.

......
IN MY cyberoam (CR 100iNG) there is no option 4

select option 3

everything is reset

USER:admin
PASS:admin

I HOPE IT HELPS

Hello,

Connect the firewall on serial console and at password prompt type RESET and press enter. It may prompt you with multiple option to reset the device. As far as I remember - it also have option to reset password.

See if the above help!