Table not being sent across Rednet

os.pullEvent = os.pullEventRaw

function topBar()
term.clear()
term.setCursorPos(1, 1)
print("MMOS Version 1.0")
term.setCursorPos(1, 3)
end

rednet.open("right")

while true do

rednet.send(3, "Send userList")

repeat
  receivedId, userListRednet = rednet.receive()
until receivedId == 3

f = fs.open("userListRednet", "r")
userList = textutils.unserialize(f.readAll())
f.close()

topBar()
print("Enter your username:")
name = read()
for i = 1, #userList do
  if name == userList[i][1] then
   userPassword = userList[i][2]
   userAccessLevel = userList[i][3]
   break
  end
end

topBar()
print("Enter your password:")
password = read("*")
if password == userPassword then
  topBar()
  textutils.slowPrint("Welcome "..name..". You have been granted Level "..userAccessLevel.." Access.")
  redstone.setOutput("back", true)
  term.setCursorPos(1, 6)
  textutils.slowPrint("The entrance will close in 16 seconds.")
  for i = 1, 15 do
   secondsLeft = 16 - i
   term.setCursorPos(1, 6)
   term.clearLine()
   print("The entrance will close in "..secondsLeft.." seconds.")
   sleep(1)
  end

  topBar()
  textutils.slowPrint("The entrance is now locked.")
  sleep(3)
  redstone.setOutput("back", false)
else
  topBar()
  print("Access Denied.")
  sleep(3)
end
end

os.pullEvent = os.pullEventRaw

while true do

userList = {{"name1", "password1", 1}, {"name2", "password2", 2}, {"Name3", "password3", 3}}

receivedId, receivedMessage = rednet.receive()
userListRednet = textutils.serialize(userList)
rednet.send(0, userListRednet)

end