Generated CapabilityToken is not always valid

[mabounassif]

I have this in my controller to generate random channel name

class RandomTokensController < ApplicationController
  http_basic_authenticate_with name: ENV["APP_NAME"], password: ENV["APP_SECRET"]

  def create
    account_sid = ENV["TWILIO_SID"]
    auth_token = ENV["TWILIO_TOKEN"]

    capability = Twilio::Util::Capability.new account_sid, auth_token


      @@channel = SecureRandom.hex
      capability.allow_client_incoming @@channel

    @token = capability.generate
    @random_token = {:token => @token, :created_at => "now", :updated_at => "now"}

    respond_to do |format|
      format.json { render action: 'show', status: :created, location: @random_token }
    end
  end
end

The token I get back is not always a valid one. On average 3 out of 10 times, setting up the wait will lead to a failed attempt to listen on the connection of the random channel.

[kevinburke]

Hey Mahmoud,
Sorry to hear this. When there's a failure, are there any more logs or stack traces that we can look at? Maybe by setting debug to true in the Javascript library, per instructions here: https://www.twilio.com/docs/client/device

[carlosdp]

Closing due to inability to replicate. Please let us know if it happens again!