Thanks for prompt reply. I have performed everything you said.
First, the Windows version is 1709 (OS Build 16299.214).
Second, the speed test is 1.97Mbps.
Third, My laptop is an HP Notebook Serial Number CND53448M2. Product Number P4H35EA#ABV
Windows 10 Home Single Language 64-bit
Fourth, my TV is Samsung 32 inch LED TV: UA32J4303.
Fifth, I do not have a dongle, but I have a D-Link WiFi router which I use to connect to my laptop and TV. I guess this can work for mirroring.
Sixth, I have seen HDMI ports on my TV and laptop. But do not currently have a cable. Maybe I will consider getting one. But it would have been better if I can connect my laptop wirelessly to the TV. I hate cables, especially if things can happen wirelessly.
Regarding workarounds, I have done anything imaginable, including finding apps that support wireless TV-laptop connections. None have worked.
Lastly, the distance between my TV and laptop is barely 2-3 meters. Very close.