Communications from PC1 to PC2 stops after an IPModule reboot: After about 6 hours, one of the IPModules reboots. IPModules (1&2) are configured for remote bridging, enabling PPP on the serial side.

Firmware version 2.00 or greater fixes this problem. See resolution 1921 for upgrade instructions.

http://www.multitech.com/en_US/SUPPORT/Help/Resolutions/Res1921