DH-PFM881 User Manual All Right Reserved
Page 45
Switch to other wireless channel ‘cause there are much interferences in this
channel.
3.
Turn off the other interference sources
Maybe there are other WIFI devices nearby and cause interferences. Try to turn
off other WIFI devices nearby, or move DH-PFM881 to another clean
environment.
4.
The signal strength between 2 DH-PFM881 devices is too
weak, and the throughput is low.
1.
The DH-PFM881 AP and Station devices are not Line-of-Sight, or there are
blocks like a building in between the AP and Station devices.
2.
The Station device and AP device is not aligned very well, including both
horizontally and vertically, since the antenna of the DH-PFM881 is directional.
3.
The Station device is installed in the windows, and the windows glass shields
the wireless signal.
4.
The distance between the AP and Station devices is too far.
5.
The signal strength is high, but the throughput is low
1.
There are too much interferences, or multi-path interferences. For example,
there are too much 2.4GHz or 5.8GHz WIFI device working nearby.
2.
The RJ45 ports of the DH-PFM881 device don’t work well.
6.
During the point-to-point or point-to-multi-point
connection, when ping from one device to another, the
latency is too long or the packet is lost.
1.
Isolate the several APs if they are connected to one POE switch.