What can cause interference with my Wi-Fi or RF signals?

Affected products

DM2500RF, DM2500ZB, GT125, GT125-K2, RM3200RF, RM3250RF, RM3250ZB, SW2500RF, SW2500ZB, TH1120RF-3000, TH1120RF-4000, TH1121RF-3000, TH1121RF-4000, TH1123ZB, TH1124ZB, TH1300RF, TH1300ZB, TH1400RF, TH1500RF, VA4200WZ, VA4200WZ-K5, VA4201WZ, VA4201WZ-K5, WL4200, WL4200S

Some objects can cause interference with radio frequency waves, or RF signals, and with your Wi-Fi network if they are near your smart devices, gateways or router. Interference can reduce the communication range or temporarily block RF or Wi-Fi signals.

Objects that can interfere with your Wi-Fi or RF signal:

  • Microwave ovens
  • Direct Satellite Service (DSS)
  • Power sources (power lines, breaker box, etc.)
  • Cordless telephones
  • Wireless speakers and other wireless devices
  • Some external monitors and LCD displays


The building materials used in your home can also reduce the communication range or block RF and Wi-Fi signals. Here is a list of the most common ones and their interference potential:

Material

Interference Potential

Wood

Low

Synthetic material

Low

Glass

Low

Water

Medium

Bricks

Medium

Marble

Medium

Plaster

High

Concrete

High

Bulletproof glass

High

Metal

Very high