Question Can motherboards cause packet loss?

Yoiji

Honorable
Mar 29, 2018
128
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10,585
I have the Asus rog strix z270e. I tried the built in wifi and it sucks so I bought a PCIe wifi card. The card keeps losing packets when plugged into the motherboard and when I check the signal strength it only gets 82 percent while the built in wifi gets 100 percent but is slow since it is a cheap built in card. So, do motherboards "bottleneck" PCIe wifi cards or do they just do better with the built in card? Anyone know a good motherboard that has a built in Intel wifi card that is around 200 bucks or less?
 

Yoiji

Honorable
Mar 29, 2018
128
3
10,585
Do motherboards with built in wifi just prefer to use the built in wifi so when you plug in a PCIe card it "bottlenecks" that card? I did disable the built in wifi when using the PCIe through the bios. I just can't think why my PCIe wifi card is getting 82 percent signal strength and constantly losing packets even though it is better than the built in wifi card.