Warning for customers upgrading to firmware version 4.671 or later from a firmware version earlier than 4.671 on the MR2110 Because of changes to the ASY port configuration you must run the "muxon" command after the firmware upgrade in order for GPRS to work. Using Telnet or a terminal program such as Hyperterminal enter the following commands. muxon - enables mux config 0 save - saves the configuration reboot - reboots the Sarian