Getting " 403: Forbidden " error while trying to access Transmission (BitTorrent client) Web Interface

If you get the following error while trying to access Transmission (BitTorrent client) Web Interface.

403: Forbidden
Unauthorized IP Address.
Either disable the IP address whitelist or add your address to it.
If you're editing settings.json, see the 'rpc-whitelist' and 'rpc-whitelist-enabled' entries.
If you're still using ACLs, use a whitelist instead. See the transmission-daemon manpage for details.

To fix this issue, login to the server and stop the transmission-daemon.

# /etc/init.d/transmission-daemon stop

Now edit settings.json file,

# vi /var/lib/transmission/.config/transmission-daemon/settings.json

And find the line rpc-whitelist-enabled and edit as following,

rpc-whitelist-enabled : false

Now start the transmission-daemon

# /etc/init.d/transmission-daemon start

The issue should be fixed now. And you would able to access the web interface now.