Hello. This is my first time I installed Virtualmin on an entry level VPS. After a couple of effort I managed to set the server (dns records , roundcube , Lets encrypt etc) and host two domains on two subservers. The issue I have is that my domains sometimes (not all the times) arent reachable. Browser message is "server not found". When I hit browser refresh 3-5 times all of sudden domains appear normally and they seem to work .
I am wondering what I am doing wrong. Is it a DNS records issue or a poor Server? or sth else?
Meanwhile server is up all the time cause even when my domains are down I can login to Virtualmin using the IP the provider gave me.