WOP-2ac-LR5. User manual
43
•
•
•
•
•
•
6 System recovering after firmware update failure
If a failure (e.g. due to power cutoff) occured during the firmware update (via the web interface or via DHCP-based
automatic update mechanism), and the device does not operate (the «Power» indicator is solid red), use the
following algorithm to recover the device:
Unzip the archive with the firmware file.
Connect a PC to the device port. Specify the following subnet mask on the network interface:
192.168.1.0/24.
Run the TFTP client on the PC (for Windows, it is recommended to use the Tftpd32), specify 192.168.1.6 as
the remote host address and select the linux.bin file from the unzipped firmware archive for transferring.
Run the command to send a file to the remote host (the
Put
command). The process of file transmission
will be launched.
If transmission process has been started, please, wait for its finishing. The device will write the firmware to
its memory and launch the system automatically. Writing takes approximately 8 minutes. If the process is
completed successfully, the "Power" indicator will be green or orange. The configuration that was used
before the failure will be stored on the device. If you can not connect to the device, reset it to factory
settings.
If the process has not started, make sure that PC network settings are correct and try again. If it does not
work, send the device to maintainance service or connect to the device via the COM port using a special
adapter (if available) and perform recovery.
