Plain-language meaning
What Roblox code 277 means
Roblox Support titles code 277 “Lost connection to the game server, please reconnect” and says it occurs when the client application servers fail to establish a network connection.
Keep the code in its namespace
What this code does—and does not—tell you
This is Roblox's own meaning for its client code 277. It is not the same as HTTP status 277, and it is distinct from Roblox's separately documented 279 / ID 17 connection error.
Conservative next step
Where to check next
Check whether the device is connected to the internet, then use Roblox's official code-277 article for the operating-system-specific guidance. Its instructions differ by device; read them before changing or removing local app data.
Primary source
Read the official reference
This explanation is scoped to the linked Roblox Support material, checked September 28, 2026. The original source takes priority and may change its instructions.
Error Code 277: Lost connection to the game serverSame code system
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