Written by Jakub Zikuška, Tuesday 22 July 2025
Advantech is excited to announce the latest version of ICR-OS, the proprietary firmware for our cellular routers. This minor bugfix release addresses several small issues to improve the stability and reliability of our routers. All newly assembled routers will come with this firmware version pre-installed.
For a full breakdown of the advancements and changes in this release, we encourage you to review the official Release Notes.
1. IPsec NAT Rule Handling Resolved: Resolved an issue where internal NAT rules were not properly removed.
2. Verizon Connectivity on ICR-41/4271 Fixed: Fixed a connectivity issue affecting Verizon networks on ICR-41/4271 routers.
3. Registration Timeout Setting Added: Added the Registration Timeout option to the Mobile WAN Configuration.
4. Sudo Version Updated: Upgraded sudo to version 1.9.17p1.
5. CURL Version Updated: Upgraded CURL to version 8.14.0.
6. Enabled NMEA Output on LE910: Modified the serial port configuration for the Telit LE910C4-WWXD module to enable NMEA output.
The new firmware can be downloaded directly to the router from Advantech's public server, or manually from the Firmware or Router Models pages. For specific firmware versions and compatibility details, please refer to the Firmware Compatibility Chart document.
