Blizzard Entertainment review: World of Warcraft hardcore

My high speed xfinity internet service has had no issues with disconnects but my world of warcraft hardcore character continues to freeze in the game for 30 seconds to 1 minute long before being disconnected. When I log back in my character is a ghost! This freezing in the game has killed all my characters and months of hard work. I checked my internet when the game froze and it was good. I removed all add-ons and deleted the add-on program from my computer. I also followed instructions on clearing the caches so the add-ons stay gone. I also deleted and re-installed the game but the freezes and death of my characters continue. I would love to play the game and not die to game freezes. My computer specs are good. My last character level 14 mage died near the deadmines fighting river paw on 11/16/2025. I've had approximately 56 characters die this way. What else can i do to fix these freeze deaths? Please help!