99% of the time that happens because the bound network addresses do not
match with that gateway. A default gateway must be one accessible by one
of the configured IP addresses, taking into consideration the subnet mask
of that configured network device. As a result, if you have a configured
IP address of, and a subnet mask of (/24), and
you try to set a default route of (when you maybe meant to
type, you will end up with no default route because it cannot
be reached.

Good luck.

If you find this post helpful and are logged into the web interface,
show your appreciation and click on the star below.

If you want to send me a private message, please let me know in the
forum as I do not use the web interface often.