Thank you so much for all your comments and help! Unfortunately, i have been a little caught up with work the past week. Will try to implement all your recommendations during the weekends and get back to you.
Sorry man, but what shall i do if i', not getting any replies and it seems that forum is not very active :/STOP DUPLICATING POSTS
Ou, but is there any way to make it work still using hotspot? I need users connected to hotspot to be able to connect to my local web server(on static PI) :/If you are using hotspot then you won't be able to ping between devices. Disable hotspot and you should find it will start working.