@Kathy_Z everning Kathy, yup, I just installed last night. Just replace network card alone already solve the issue. I also change my current Dlink router to AX10, seems better now.

@Carson hi bro, I have still no fix for this issue. in fact I went to purchase a new router and network card hope it won't happen to that combination. The new hardware will be T50E and AX10.

@Anthony_Thet I have similar problem, my PC with T6E cant connect to home wifi, all my other device no issue. But this PC can connect to phone hotspot... so weird~