Front Panel USB Ports Not Working

[RedBurrito]

I've had my build for about a year and a half but, for about a month now, nothing that I insert into my front panel USB ports are recognized. Things are sometimes recognized for a very brief period following a restart, but not always. I've mostly been testing the ports with flash drives that work just fine on my laptop. I've also tried plugging my phone in and it does begin to charge, but I get a message to check the connection and it still doesn't show up for data transfers. If it's a hardware issue, how would I tell if the issue is with my MOBO or my case?

 

What I Have Tried

- Checked that cable is securely attached to USB header on motherboard

- Disable / Re-enabling ports in Device Manager

- Uninstalling ports in Device Manager and repairing on restart

 

My Specs

CPU: Ryzen 5 2600 3.4 GHz 6-core

Motherboard: ASRock Fatal1ty B450 GAMING k4 ATX AM4

Memory: G.Skill Ripjaws V Series 16 GB (2 x 8 GB) DDR4-3200 CL16

Storage: Samsung 970 EVO M.2 2280 (500 GB); Inland 240 GB 2.5" SSD; Seagate Barracuda Compute 2 TB 3.5" 7200 RPM HDD

Video Card: XFX Radeon RX 580 8GB GTS BLACK ED

Case: Phanteks Eclipse P350X ATX Mid Tower

Power Supply: Corsair CX (2017) 650 W 80+ Bronze Certified ATX Power Supply

OS: Windows 10 Home (64-bit)