Hello forum, I have a problem with a mechanical keyboard, it is Redragon Visnu and for 2-3 months I used it afterwards I had little problems with it, when I have the lights on it refuses to write, and when I close them from the FN key the keyboard goes great, I was with it at the warranty and I tried on different computers or drivers. Do you have any idea what the problem is? Do I need a USB HUB with an electrical adapter? I want you to recommend one if needed. Thank you