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I have Archer C5400 router. When I connect my ipad, the wifi signal is great. However, when connecting my bluetooth headphone to the ipad, the wifi speed becomes very slow. I tried different bluetooth devices and different tablets, but still the same slow result.

With no bluetooth, then the wifi speed is fine. With bluetooth on, the device no longer is able to receive the wifi signal. I thought it was the iapd issue, but it works fine when connected to other wifi routers.

Any suggestions??

Thank you.