What types of WiFi encryption can be used with Mobile Sensor Management (MSM)?

Document ID

Document ID TE7920

Version

Version 1.0

Status

Status Published

Published Date

Published Date 06/21/2017
Question
What types of WiFi encryption can be used with Mobile Sensor Management (MSM)?
Summary
Types of WiFi encryption can be used with Mobile Sensor Management (MSM)
  • WPA2-PSK (AES) = OK
  • WPA2-PSK (TKIP) = OK
  • WPA2-PSK (TKIP/AES) = NOT OK
If currently using TKIP/AES, the router configuration can be changed by an IT professional and/or Internet Provider
Answer
Wi-Fi presents flexible and reliable connection option for Mobile Sensor Management.  Referring to Tab 1c in the commissioning workbook, a question is posed asking “Does the field network support WPA2-PSK authentication?
 
What does that mean? 
  • Wi-Fi Protected Access II (WPA2) is a security protocol and certification to protect data within the wireless network. 
    • The “-PSK” refers to “pre-shared key” and is an authentication technology in the form of a “password”.
  • Within WPA2-PSK, there are 3 different encryption types:  WPA2-PSK (TKIP), WPA2-PSK (AES), and WPA2-PSK (TKIP/AES)
    • AES is the latest and preferred technology with TKIP being more aged.           
      • AES: Advanced Encryption Standard
      • TKIP: Temporal Key Integrity Protocol
    • Hach MSM devices support BOTH standards, but cannot support a combined TKIP/AES due to communication limitations.
      • Wi-Fi adapter (LZY839) will not connect with AES/TKIP
      • Customer router needs to be configured for just ONE of these protocols (either AES or TKIP)

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