Most of the players experiencing issues with connectivity are using Vodafone for their broadband.
Gamers have blamed the network provider for Roblox outage as their servers could be overloaded.
One person wrote: "That's actually so intriguing how it's only vodafone users."
Another user said: "The Amazon websites are bugging and Roblox runs with Amazon. Vodafone had too much AWS servers open and fried their own AWS boards."
Fans have expressed their frustration as they are unable to connect to the game.
One person wrote: "Dear Roblox, I am absolutely FED UP with your garbage servers!
"How is it that in 2025, a multi-billion-dollar company still can’t keep its game running smoothly?
"Every single time I try to play, I get disconnected, experience insane lag, or get hit with the dreaded "Lost Connection to the Server" message. Are you seriously telling me you can’t afford to fix this nonsense?"
Over 700 users have reported experiencing issues with Roblox in the UK.
The outage seems to be affecting the server connection the most as well as the website.