With the unit disconnected, remove the top cover to reveal the fuse, which is located near the large capacitors, diodes, and power transformer
netgear r7000 speeds supports both 2.4GHz and 5.0GHz wireless frequencies, . I believe the issue with your receiver is more serious than a blown fuse. Check for a short circuit before replacing the fuse. If there is a short circuit, especially in the power amp section (which is frequent to fail), replacing the fuse without testing it may make the situation worse.