9
5
WAN
5.1
Connection
You
can
set
Preferred
Cellular
Network
and
Roaming
Mode
in
this
page.
Parameter
Description
Preferred
Cellular
Network
Preferred
cellular
network
enables
you
to
choose
a
more
desirable
network
which
uses
either
IPv4
or
IPv6
protocol.
The
available
options
include
Auto
Mode
and
Manual
Mode
.
Auto
mode
:
The
router
chooses
the
suitable
network
type
automatically.
Under
this
mode,
you
cannot
disconnect
any
WAN
status
.
Manual
mode
:
You
can
choose
the
desired
network,
using
either
IPv4
or
IPv6.
You
can
also
enable
or
disable
any
WAN
status
.
Roaming
mode
Enable
or
disable
data
roaming
for
the
SIM
card
inserted
in
the
router.
Data
roaming
means
the
data
usage
produced
when
you
are
outside
the
coverage
of
your
ISP.
You
can
disable
data
roaming
to
avoid
roaming
data
usage.
WAN
Status
It
specifies
the
IP
family
that
the
router
uses
to
access
the
internet.
You
can
enable
or
disable
any
of
them
under
Manual
Mode
.
IP
Family
It
specifies
the
internet
protocol
version
used
to
access
the
internet.
Available
options
include
IPv4
and
IPv6
.
