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 grounded antennas

Also make sure that your antenna is DC grounded:

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

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