Manual:Wireless card diagnostics

ESD damage

To test if your R52 or R52H card is malfunctioning due to lightning/storm electrostatic damage, use a multimeter:

Damaged card:

Normal card:

Testing area close-up:

DC shorted antennas

Also make sure that your antenna is DC shorted:

DC shorted antenna. This antenna doesn't need a Coax lightning arrestor:

NOT DC shorted antenna. This antenna needs a Coax lightning arrestor to avoid sudden wireless card damage. Note the OL (Overload) in the multimeter: