How to fix "This site can’t be reached , its taking to long to respond.....??

[AC Question]

I am unable to access one site from my device using my home WiFi ,
But I can access to every other sites ...and this problem only happening in only one device and only on this WiFi ..
But i can access to that site on using any other WiFi network ....
Please give me a solution ....????
Thanks in advance ...
And sorry for my poor English .. Thank you