HTTPS Certificates – Manual Update After Upgrade
After firmware version 5.3.5, the HTTPS certificate format changed for enhanced security. Routers running a version earlier than 5.3.5 will not automatically update their certificates during an upgrade. To update the certificates manually, remove the old certificates over SSH with rm /etc/certs/https*, then reboot the router. The certificates regenerate automatically after the reboot.
ICR-3200 – WiFi Behavior Changed
Starting with firmware version 6.4.2, the Laird SU60 WiFi driver was upgraded to version 11.171.0.24. This update fixes several WiFi connectivity issues on these routers. It may also affect the behavior of the WiFi module in certain situations; for example, when used as both an AP and a Station, the AP will not accept any clients if the Station is not connected.
Firmware Update – Unexpected Filename
There is a known issue that occurs if the filename of the firmware intended for your router has been altered. This can affect both manual firmware updates and the Automatic Update feature. When this issue arises, the following warning message is displayed: You are trying to upload file 'xx.bin' but 'yy.bin' is expected. Are you sure to continue? To resolve this issue, choose the correct firmware file for your router.
WiFi Configuration – Lost After Firmware Downgrade
Be aware that if you downgrade your firmware to a version earlier than 6.2.0, all existing WiFi configurations will be completely lost. It is crucial to back up your configuration before proceeding with such a downgrade.
ICR-3200 – Country Code for WiFi
In the initial firmware version for the ICR-3200 WiFi module, there is a limitation regarding the setting of the country code. Any modifications to the country code made on the configuration page will not take effect. This is because the country code for the WiFi module is pre-set during the manufacturing process, based on the intended region of product distribution.
SmartStart SL302 – Cellular Network Authentication
For the SmartStart SL302 router equipped with the Telit LE910-NA1 cellular module firmware version 20.00.522, there is a known limitation: it is not possible to use a username and password for authentication when connecting to the Mobile WAN network. This restriction specifically affects settings configured on the Mobile WAN Configuration page. To check the firmware version of your cellular module, visit the Mobile WAN Status page in the router's web GUI, where it is listed under the Mobile Network Information section.