Question WiFi card signal obstructed by case side panel

[linkcomm]

I recently purchased an Archer T6E AC1300 WiFi PCIe Adapter from TP-Link and it has a decent signal, but only if the side panel is removed from the case (Phanteks P300A). The motherboard is ASUS Prime Z590 and all firmware should be up to date.

 

[lvt]

Even if both antennas erected?

 

[linkcomm]

Even if both antennas erected?

Yes, both pointed as best towards new router as possible

 

[lvt]

Yes, both pointed as best towards new router as possible

That's weird.

Did you try another PCIe slot?

 

[Paperdoc]

Try this in case it helps. You said, "both pointed as best towards new router as possible". The antennas do NOT send a directed BEAM out to their destimation. They send out a field that IS oriented in space. The idea here is that the antennas on BOTH the router and the PCIe card shuld be pointed in the SAME direction - usually, just STRAIGHT UP - so that their field patterns are aligned.