DWR-921 4G LTE Router
User Manual
Operation Guidelines
Wireless Installation Considerations
The  DWR-921  device lets you access your network using a wireless connection from virtually
anywhere within the operating range of your wireless network. Keep in mind, however, that the
number, thickness and location of walls, ceilings, or other objects that the wireless signals must pass
through,   may   limit   the   range.   Typical   ranges   vary   depending   on   the   types   of   materials   and
background   RF   noise   in   your   home   or   office.   To   maximize   your   wireless   range,   follow   the
guidelines below.
1. Keep the number of walls and ceilings between the  DWR-921  device and other network
devices to a minimum – each wall or ceiling can reduce your wireless network range by 3-
90 feet (1-30 meters).
2. Be aware of the direct line between network devices. Place your devices so that the signal
travels straight through a wall or ceiling (instead of at an angle) for better reception.
3. Building materials make a difference. A solid metal door or aluminum studs may have a
negative   effect   on   your   wireless  range.   Try  to   position   your   router,  access   points,  and
computers   so  that   the  signal   passes   through   drywalls   or   open   doorways.  Materials  and
objects such as glass, steel, metal, walls with insulation, water (fish tanks), mirrors, file
cabinets, brick, and concrete will degrade your wireless signal.
4. Keep your router away (at least 3-6 feet or 1-2 meters) from electrical devices or appliances
that generate RF noise.
5. If you are using 2.4 GHz cordless phones or X-10 equipment (wireless devices such as
ceiling fans,  lights,  and  home  security systems), your  wireless   connection  may  degrade
dramatically or drop completely. Make sure your 2.4 GHz phone base is as far away from
your wireless devices as possible. Note, that the base transmits a signal even if the phone in
not in use.
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