Anyone know why Remote Event isn't firing when tool is unequiped?

Problem was caused due to a conflicting if statement.

Send full code since clearly the part of code you sent has no issues in it

Do you have any “:WaitForChild()” before it that might be stopping the code to reach that block?

Show us all the code, inclusing the variables used, and the server sided code.

Is it a localscript or a script? If its a script it should be

Tool.Unequipped:Connect(function()
Event:FireClient(“Test”)
end)

There is no output errors.

FireServer would error if called from the server.