When a link does not work well, there are several options what you can try.

1. Set the Channel width to the lowest available value.

2. Reduce Max data rate in half.

3. Set Transmit queue length to 8 (available  on “Access Point iPoll” wireless mode only).

4. Set BA window size to 8 (available on “Access point (auto WDS) and “Station” wireless modes only) .

All above can be done in “Configuration->Wireless” tab.

If that does not help, probably current channel has too may other Access Points (APs).

In order to look for a better channel, navigate to “Tools->Spectrum analyzer” tab. Click on “Start” button and wait at least 20-30 seconds while radio gathers enough packets to present real time noise.


If your current channel is on the highest noise bars, like in the picture above, look for a frequency range where noise bars are the smallest.

In this example, lower noise is in the range of 5170-5230 MHz and 5490-5725 MHz.

To find the right channel and avoid the collision with other APs, do the scan  in “Tools->Site survey” tab.


Choose a channel number, which does not match with the number in “Channel” column,  within the clear  range and set it on the AP (Configuration->Wireless tab).

Available channels varies from selected country code

Once the link is connected, test ping times and speed. If the results aren’t good enough, try another channel.

Outdoor installation

There are three different types of mounting plates.  All of them could be mounted on the wall or on pole.



  • Cable length from switch to APC < 100 m
  • Use FTP cable outside
  • Use shielded RJ45 plugs outside
  • It’s recommended to solder drain wire to RJ45 plug
  • Use UTP or FTP cable inside



Three grounding options available:

  • Grounding stud on housing (only APC 5M-18/2M-14)
  • Grounding with PoE adapter B
  • Grounding with PoE inserter C



Observe signal level on LED:

  • Align both sides at once po PTP link
  • Align CPE’s on multipoint network
  • Standard RSSI thresholds are the first four LEDS from top.