@Rustin.Peace I got the router replaced by TP-link. Took a month for the replacement to arrive. Got the newer V3 device. The issue was resolved with the new device.

@Kevin_Z I am willing to investigate further. I have already responded to your support team and scheduled a session. Thank you for the support.

@Ivaylo Thanks for the inputs. Had tried with several laptops. The problem persists. Also had raised a support ticket several days back. Still waiting for their response.

@Ivaylo Are you saying this is expected behavior? Or is it a problem with the router and should it be taken to service center ?

@Ivaylo Wireless adapter: Intel Wireless-AC 9560 160 MHz Driver: 21.120.0.9 (Date:16-08-2020)

@Ivaylo Just did some tests with Channel set to Auto as well as 11. Other parameters as you mentioned. 2.4GHz speed is around 45Mbps; 5GHz speed is 93Mbps. Will do some more tests tomorrow. Edit Did...