Not able to remote desktop from my mac to windows from iphone hotspot
I solved this. It seemed FQDN is no more a thing. I tried putting the direct IP Address to the connection &amp; used no gateway. It worked. 

However, I am a little curious to know why MRD won't recon Computer Name while being on the same Network? That's what made me click to do more research. Not able to still digest a suitable answer. 

In contrary to having used the personal hotspot, I started experimenting with a local vendor ISP &amp; were assigned a static IP. I used the Computer Name &amp; that worked but with personal hotspot - it didn't, I had to always use the direct IP.