Hi, sometimes when i try to set the "Powered" property for a Huawei E1552, it times out. In huawei_enable() "ATE0 +CMEE=1" is sent to the modem and the pcui port. It looks like the device doesn't always send a response on both ports. I think this device has problems handling AT commands on both ports at the same time. Could there be a compatibility problem with other Huawei devices, if these AT commands are only sent on one port? ofonod[9065]: plugins/huawei.c:huawei_enable() 0x98e95b0 ofonod[9065]: src/modem.c:get_modem_property() modem 0x98e95b0 property Modem ofonod[9065]: plugins/huawei.c:open_device() Modem /dev/ttyUSB0 ofonod[9065]: src/modem.c:get_modem_property() modem 0x98e95b0 property Pcui ofonod[9065]: plugins/huawei.c:open_device() Pcui /dev/ttyUSB2 ofonod[9065]: Modem: > ATE0 +CMEE=1\r ofonod[9065]: PCUI: > ATE0 +CMEE=1\r ofonod[9065]: PCUI: < \r\nOK\r\n ofonod[9065]: PCUI: > ATI\r ofonod[9065]: src/modem.c:set_powered_timeout() modem: 0x98e95b0 Thanks, Cedric