Front IO Headset issues

[Costandre]

Hello! Kinda new here so be nice :3
So here's my issue: when i'm in a skype call with my headset (Plantronics Gamecom 388) and I watch a video or listen to music, people on the skype call say they can listen to what i'm listening with  a certain ease... I try muting my mic with the hardware button on my earcup and they say the problem remains! (I thought it was sound leaking out of the earcup, into the mic) So what I tried next was connecting the headphone and microphone jack on the rear IO instead of the front jacks on my Zalman Z11 Neo case... And problem solved! I wanna know what may be causing this, cause it's very finnicky to always go fetching for ports on the back of my pc, unplugging my speakers and plugging in the headset... It's annoying Any help is appreciated!

[Alas]

it sounds like you could have a faulty 3.5mm jack on your case. Thats most likely wats going on

[Alas]

sounds like a faulty 3.5mm jack. that is what is most likely causing your problem esecially if its an older computer where you use the jack alot

[Costandre]

sounds like a faulty 3.5mm jack. that is what is most likely causing your problem esecially if its an older computer where you use the jack alot

So when I get a new motherboard this should be fixed right? Or do you mean the 3.5mm jack on the case?