diff --git a/src/drivers/net/exanic.c b/src/drivers/net/exanic.c
index 62296927..64a47b45 100644
--- a/src/drivers/net/exanic.c
+++ b/src/drivers/net/exanic.c
@@ -812,6 +812,9 @@ static int exanic_probe ( struct pci_device *pci ) {
 	/* Read capabilities */
 	exanic->caps = readl ( exanic->regs + EXANIC_CAPS );
 
+	/* Power up PHYs */
+	writel ( EXANIC_POWER_ON, ( exanic->regs + EXANIC_POWER ) );
+
 	/* Fetch base MAC address */
 	if ( ( rc = exanic_fetch_mac ( exanic ) ) != 0 )
 		goto err_fetch_mac;
diff --git a/src/drivers/net/exanic.h b/src/drivers/net/exanic.h
index fd9f5b8c..041b9e21 100644
--- a/src/drivers/net/exanic.h
+++ b/src/drivers/net/exanic.h
@@ -62,6 +62,10 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
 /** I2C GPIO register */
 #define EXANIC_I2C 0x012c
 
+/** Power control register */
+#define EXANIC_POWER 0x0138
+#define EXANIC_POWER_ON 0x000000f0UL		/**< Power on PHYs */
+
 /** Port register offset */
 #define EXANIC_PORT_REGS( index ) ( 0x0200 + ( 0x40 * (index) ) )