Question : Problem: How do I factory reset a GTA GB-800?

My gnatbox (GB-800) stopped functioning the other day and now I cannot even see it on the network. I know I can do a factory reset through the web interface but I can't get to it. Is there a way to physically do a hard reset on this thing? I could not see any reset button.

Answer : Problem: How do I factory reset a GTA GB-800?

Hi lilceez,

According to the manual, you must do this from the console.  Here's what it says:
To reset your firewall to factory defaults, attach either a terminal (using a serial console cable), or a computer with terminal emulation
software (using a DB-9 null-modem cable). Enter these settings for the console connection:
EMULATION VT-100
PORT COM port connected via DB-9 cable to the firewall
BAUD RATE 38400
DATA / BIT RATE 8
PARITY None
STOP 1
FLOW CONTROL Hardware*
* Set flow control to “None” as an alternative to hardware flow control.
Power on the GTA firewall. The following words will display:
GB-OS System Software x.x.x
loading ...
When the word “loading” appears, immediately press CONTROL-R. The system will begin to load, and configuration and hardware
data will appear on screen. Finally, a confirmation question displays:
Are you sure you want to reset your firewall configuration?: (“yes” or “no”)
To reset to factory defaults, type the word “yes” in lower case letters. Typing any other key will reboot the system without resetting
to defaults. There is no time out; the reset confirmation question will remain until a key is pressed.


Note that it shows a null modem cable.

The manual is available at:
https://www.gta.com/downloads/external/userGuide/GB_System_Guide_3.7s.pdf

Hope this helps,
Alan