Internet indicator disconnected

[Alejandro]

Sorry for my English writing but at first, the Internet indicator of the panel has a colour as white, but when I suspend my computer and later start, it becomes color grey and appears a poster that informs "Wire Network Disconnected". And I can't activate the Internet, I have to reboot the computer.

The version of Xubuntu is 15.04

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: xfce4-indicator-plugin 2.3.3-0ubuntu2
ProcVersionSignature: Ubuntu 3.19.0-21.21-generic 3.19.8
Uname: Linux 3.19.0-21-generic i686
ApportVersion: 2.17.2-0ubuntu1.1
Architecture: i386
CurrentDesktop: XFCE
Date: Fri Jul 3 11:23:29 2015
InstallationDate: Installed on 2015-06-21 (11 days ago)
InstallationMedia: Xubuntu 15.04 "Vivid Vervet" - Release i386 (20150422.1)
ProcEnviron:
 LANGUAGE=es_ES
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=es_ES.UTF-8
 SHELL=/usr/bin/fish
SourcePackage: xfce4-indicator-plugin
UpgradeStatus: No upgrade log present (probably fresh install)