C-Pen Reader 3 and C-Pen Lingo 3: Wi-Fi connection and firewall guide

Information below applies to C-Pen Reader 3 and Lingo 3.

Wi-Fi basics

SSID: the Wi-Fi network name. Sometimes it ends with "_2.4G" or "_5G" to indicate the frequency band, but it remains just a name.
Frequency band: the Wi-Fi signal frequency. Common bands are 2.4 GHz and 5 GHz; 6 GHz is becoming more common. Some SSIDs reveal the band; others do not.
Authentication: the login process for Wi-Fi. Most public networks require only a password (no username) using WPA2-Personal. Other methods like WPA2-Enterprise exist. Read more here:

Wi-Fi Protected Access (WPA), Wi-Fi Protected Access 2 (WPA2), and Wi-Fi Protected Access 3 (WPA3) are the three security certification programs developed after 2000 by the Wi-Fi Alliance to secure wireless computer networks. The Alliance defined these in response to serious weaknesses researchers had found in the previous system, Wired Equivalent Privacy (WEP).[1]

Captive Portal: when connecting to an open Wi-Fi, users get redirected to a webpage requiring both username and password. This is common in hotels

C-Pen Wi-Fi requirements

Item	Verify
Wi-Fi standard	IEEE 802.11 b/g/n
Frequency band	2.4GHz
Authentication	WPA2-Personal (PSK)

Firewall guide

Allowlist the following URLs:

Endpoint	Purpose
https://europe-west1-dictionary-api-190e9.cloudfunctions.net	Language services
https://firebasestorage.googleapis.com
https://firestore.googleapis.com
https://penotaupdate.blob.core.windows.net/cpen/*	Software update

Problems that may arise

Wi-Fi router is set to only use 5GHz band.

Most Wi-Fi networks support 2.4 GHz. If your network disables it, consult your IT admin.

Wi-Fi network uses Captive Portal to login.

If authentication other than WPA2-Personal or Captive Portal is used, the network admin can whitelist Reader 3 or Lingo 3 MAC addresses to allow connection. Success depends on network security settings and must be tested case-by-case.

Find Reader 3 and Lingo 3 MAC addresses in Settings\System information.