9 | © Frio 2021 - Rev. 0.3 - Updated 3/2/2021
3.4.1.2
Wi-Fi
The Frio S1-A is designed to use 802.11n Wi-Fi operating in the 2.4GHz band or the 5GHz band. It is also compatible
with older 2.4GHz 802.11b, 802.11g, and 802.11a networks.
To connect a Frio S1-A device to a Wi-Fi Network use the Frio Mobile App. The mobile app will allow you to configure
the device via the BlinkUp process and connect to a Wi-Fi network. To clear the Wi-Fi credentials from the device,
select
Settings
from the
Main Menu
, then select
Advanced Settings
from the
Settings Menu
. Select
Network Settings
from the
Advanced Settings Menu,
then select
Wi-Fi Credentials
. You will be asked if you want to
Clear Wi-Fi
Credentials?
Select
Yes
to clear the Wi-Fi credentials and restart the BlinkUp process.
For security reasons, Frio S1-A devices cannot be configured to operate as a Wi-Fi hotspot (access point). The Frio S1-
A is capable of determining what kind of security
—
WEP, WPA, or WPA2
—
is being used by the network it is
attempting to connect to. It supports all o
f these ‘consumer’ security mechanisms.
If you configure a Frio S1-A device to connect to your password-protected Wi-Fi network but subsequently downgrade
the security of the network by removing the password, the device will no longer connect to the network. To re-
connect, the device must be reconfigured with a blank password. This is by design. It is intended to prevent your
device (and other devices on the network) from
being ‘captured’ by a rogue
Wi-Fi access point masquerading as your
network router. It can do this by transmitting the same SSID as your network but at a higher signal strength, but
without the password, which the assailant does not know.
The Frio S1-A does not currently support enterprise-level Wi-Fi authentication, 802.1x, which requires that you log in
with a username and password as well as the customary SSID. An end-user will not be able to connect a Frio S1-A
device in such an environment at this time. There are ways to use the Frio S1-A in enterprise environments, however.
Many enterprises provide WPA2 Personal-based networks for guest access and to support other devices, such as
network printers, which do not support WPA2 Enterprise. Please check with your IT department.
The Frio S1-A does not support networks that present an HTML form in which the user enters login details before
network access is granted. Some consumer routers use this approach, but it is most commonly encountered with
public hotspots and some guest networks in corporate environments.
3.4.1.3
Firewall Requirements
The Frio S1-A is a Wi-Fi and Ethernet compatible device that only makes outbound connections. Firewall configuration
is required if the firewall stops outbound connections. This is rarely the case in consumer routers but commonplace
in corporate environments. The device communication makes use of the following ports, which need to be open
through a firewall:
Port
TCP
UDP
Usage
31314
✓
Initial device-server connection
993
✓
Fallback device-server connection #1
443
✓
Fallback device-server connection #2
80
✓
Fetch device firmware
53
✓
Allow DNS look-ups
—
Systems with non-default DNS settings