diff --git a/homeassistant/components/device_tracker/aruba.py b/homeassistant/components/device_tracker/aruba.py
index 82183e1495c..6d94ad30d04 100644
--- a/homeassistant/components/device_tracker/aruba.py
+++ b/homeassistant/components/device_tracker/aruba.py
@@ -11,7 +11,6 @@ import logging
 from datetime import timedelta
 import re
 import threading
-import telnetlib
 
 from homeassistant.const import CONF_HOST, CONF_USERNAME, CONF_PASSWORD
 from homeassistant.helpers import validate_config
@@ -21,6 +20,7 @@ from homeassistant.components.device_tracker import DOMAIN
 # Return cached results if last scan was less then this time ago
 MIN_TIME_BETWEEN_SCANS = timedelta(seconds=10)
 
+REQUIREMENTS = ['pexpect==4.0.1']
 _LOGGER = logging.getLogger(__name__)
 
 _DEVICES_REGEX = re.compile(
@@ -44,6 +44,7 @@ def get_scanner(hass, config):
 
 class ArubaDeviceScanner(object):
     """ This class queries a Aruba Acces Point for connected devices. """
+
     def __init__(self, config):
         self.host = config[CONF_HOST]
         self.username = config[CONF_USERNAME]
@@ -93,23 +94,39 @@ class ArubaDeviceScanner(object):
 
     def get_aruba_data(self):
         """ Retrieve data from Aruba Access Point and return parsed result. """
-        try:
-            telnet = telnetlib.Telnet(self.host)
-            telnet.read_until(b'User: ')
-            telnet.write((self.username + '\r\n').encode('ascii'))
-            telnet.read_until(b'Password: ')
-            telnet.write((self.password + '\r\n').encode('ascii'))
-            telnet.read_until(b'#')
-            telnet.write(('show clients\r\n').encode('ascii'))
-            devices_result = telnet.read_until(b'#').split(b'\r\n')
-            telnet.write('exit\r\n'.encode('ascii'))
-        except EOFError:
-            _LOGGER.exception("Unexpected response from router")
+
+        import pexpect
+        connect = "ssh {}@{}"
+        ssh = pexpect.spawn(connect.format(self.username, self.host))
+        query = ssh.expect(['password:', pexpect.TIMEOUT, pexpect.EOF,
+                            'continue connecting (yes/no)?',
+                            'Host key verification failed.',
+                            'Connection refused',
+                            'Connection timed out'], timeout=120)
+        if query == 1:
+            _LOGGER.error("Timeout")
             return
-        except ConnectionRefusedError:
-            _LOGGER.exception("Connection refused by router," +
-                              " is telnet enabled?")
+        elif query == 2:
+            _LOGGER.error("Unexpected response from router")
             return
+        elif query == 3:
+            ssh.sendline('yes')
+            ssh.expect('password:')
+        elif query == 4:
+            _LOGGER.error("Host key Changed")
+            return
+        elif query == 5:
+            _LOGGER.error("Connection refused by server")
+            return
+        elif query == 6:
+            _LOGGER.error("Connection timed out")
+            return
+        ssh.sendline(self.password)
+        ssh.expect('#')
+        ssh.sendline('show clients')
+        ssh.expect('#')
+        devices_result = ssh.before.split(b'\r\n')
+        ssh.sendline('exit')
 
         devices = {}
         for device in devices_result:
@@ -119,5 +136,5 @@ class ArubaDeviceScanner(object):
                     'ip': match.group('ip'),
                     'mac': match.group('mac').upper(),
                     'name': match.group('name')
-                    }
+                }
         return devices
diff --git a/requirements_all.txt b/requirements_all.txt
index 8435ffd01d5..9e0e159a1d2 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -114,6 +114,9 @@ orvibo==1.1.1
 # homeassistant.components.mqtt
 paho-mqtt==1.1
 
+# homeassistant.components.device_tracker.aruba
+pexpect==4.0.1
+
 # homeassistant.components.light.hue
 phue==0.8