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问题: Linux 3G/4G 网络连接掉线
描述:
[ 40.508697] usb 1-1: USB disconnect, device number 2
[ 40.514129] option: option_instat_callback: error -108
[ 40.520446] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0
[ 40.528900] option 1-1:2.0: device disconnected
[ 40.533996] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1
[ 40.542419] option 1-1:2.1: device disconnected
[ 40.549926] option: option_instat_callback: error -108
[ 40.555572] option1 ttyUSB2: GSM modem (1-port) converter now disconnected from ttyUSB2
[ 40.564056] option 1-1:2.2: device disconnected
[ 40.569152] option1 ttyUSB3: GSM modem (1-port) converter now disconnected from ttyUSB3
[ 40.577575] option 1-1:2.3: device disconnected
[ 40.582641] option1 ttyUSB4: GSM modem (1-port) converter now disconnected from ttyUSB4
[ 40.591064] option 1-1:2.4: device disconnected
[ 40.596099] option1 ttyUSB5: GSM modem (1-port) converter now disconnected from ttyUSB5
[ 40.604553] option 1-1:2.5: device disconnected
[ 40.609588] option1 ttyUSB6: GSM modem (1-port) converter now disconnected from ttyUSB6
[ 40.618011] option 1-1:2.6: device disconnected
解决方案1:
描述:
linux4g华为usb
使用4G模块华为ME909S-821来做4G无线上网,同时使用短信功能。总是出现掉线的问题,做过的改进有增大电容以增强供电能力,屏蔽/etc/ppp/options中lcp-echo-failure 4和lcp-echo-interval 30这两行,但还是存在掉线,希望做过的高手解答[ 40.508697] usb 1-1: USB disconnect, device number 2
[ 40.514129] option: option_instat_callback: error -108
[ 40.520446] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0
[ 40.528900] option 1-1:2.0: device disconnected
[ 40.533996] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1
[ 40.542419] option 1-1:2.1: device disconnected
[ 40.549926] option: option_instat_callback: error -108
[ 40.555572] option1 ttyUSB2: GSM modem (1-port) converter now disconnected from ttyUSB2
[ 40.564056] option 1-1:2.2: device disconnected
[ 40.569152] option1 ttyUSB3: GSM modem (1-port) converter now disconnected from ttyUSB3
[ 40.577575] option 1-1:2.3: device disconnected
[ 40.582641] option1 ttyUSB4: GSM modem (1-port) converter now disconnected from ttyUSB4
[ 40.591064] option 1-1:2.4: device disconnected
[ 40.596099] option1 ttyUSB5: GSM modem (1-port) converter now disconnected from ttyUSB5
[ 40.604553] option 1-1:2.5: device disconnected
[ 40.609588] option1 ttyUSB6: GSM modem (1-port) converter now disconnected from ttyUSB6
[ 40.618011] option 1-1:2.6: device disconnected
解决方案1:
是不是模块驱动问题