UI throws 503 error after restoring a backup to a NetBotz 750/755 from another NetBotz appliance

Issue:
After restoring a backup to a  NetBotz 750/755, UI throws 503 error.

Product Line:
NetBotz

Environment:
NBRK0750
NBWL0755
Backup/Restore

Cause:
System settings may become corrupt if overwritten. To reproduce issue:

1. Configure all system settings
2. Navigate to Backup page / Take backup
3. Log into a different appliance that is already configured.
4. Navigate to Backup page
5. Restore the backup from previous unit
6. After restore, UI throws 503 error

Resolution:
Reset the NetBotz to defaults and configure the IP serially prior to importing a backup. Reset procedure:
connect using the micro USB serial configuration cable. Once connected, verify you're using the correct port in device manager, then use the following settings and connect with a terminal emulation program such as Hyper-terminal or Putty:

115,200 Baud rate
8 Data Bits
No Parity
1 Stop Bit
No Flow control.

Open the connection and hit enter until prompted for a login.
Log in using root and the password you had provided upon initial root login (done via serial connection), then when prompted to press enter within 5 seconds, type a capital X and hit Enter.

At the linux prompt type:
/netbotz_app/reset.sh
As of version 5.2.1, this command will change to:
/netbotz_app/factory_reset.sh

In some cases, an extra command may help in cleaning the database such as may be the case if the firmware were downgraded for instance:
/netbotz_app/restart.sh stop cleanDB startApp startClubber

Released for:APC Nigeria