Realtek HD Audio Manager subwoofer and front speakers set-up confusing

Hi! I have a subwoofer and two front speakers. They were working fine together before I re-installed Windows10 (it still took some confusing steps to get them working), but after, they aren't working together properly and I can't figure out how I did it last time in Realtek HD Audio Manager. The front speakers work fine alone, but with the sub-woofer, they either sound off or the sub doesn't work at all. Does anybody know how to set it up so that they work together properly?

If you have the typical "2.1" speaker system (two speakers and a bass speaker), there is only one connection from the PC to the speaker system. Internally in the bass speaker is the amplifiers that separate the signal and route it to the bass speaker and the two front speakers. In the Realtek HD Audio Manager select either Stereo or Front Left and Right, depending on the version of the HD Audio Manager you have. If its not the speaker selection, then I would suspect a problem in the speaker system from your description.