Having to use ipconfig /flushdns

I often get ERR_NAME_NOT_RESOLVED. Sometime Reload works. When Reload doesn't work, I issue the ipconfig command to address the problem. How do I fix this issue permanently?

I am having problems making this post. I keep getting the error prod-xb.sprinklr.com’s server IP address could not be found. I get this error even after I do the ipconfig /flushdns.