Joy.

I have a Mac. I have Eset with firewall etc. REcently there's been an issue where there's a clash with MAC fire wall en ESET firewall. I've disabled firewal on ESET and use MAC firewall. However ESET or something switches my MAC firewal off despite the fact it's set and locked. And ESET is turned on Still this is causing problems with my internet connection switching on and off. I have to keep checking internet connection. What is the cause and which firewall is best.? thank you Joy