How do I remotely upgrade firmware ?

This facility it depends on the model and firmware already installed. On some models, you can update the firmware from another location, via the WAN (public-facing) interface - i.e. without having to be at the same location as the router. Firstly, you must enable the facility from the router's management menu :

Then, using any FTP (not TFTP) program (we used CuteFTP in the example below) you can open an FTP connection to the router's public (WAN) IP address, using the username 'admin' and the admin password you have set on the router. A regular directory will appear as per the example shown below and you can now transfer the appropriate firmware .ALL file. After receiving the file, the router will write it to its flash rom; this can take a couple of minutes. Do not disturb the router during this time. It will reboot once it has written the new firmware, and the router should be back online shortly.

We do not recommend sending the .RST file as that will then clear our the router settings and the router will not be able to log back onto the line, so you will not longer have access to it until someone configures it locally.

After the upgrade, the router configurator main page should then show the new firmware version is installed into the router.