几个月来，我的移动宽带 (GSM) 棒一直与 Crunchbang 配合使用。昨天就停了。当我插入它时，它出现在网络管理器中，我可以连接到它，但一旦连接它就会断开连接。
大约 1.5 周前，我切换到 Liquorix 内核，并且该棒也可以使用它，直到现在。切换回原始内核并不能修复它。
电脑：联想U410
GSM 棒：Sierra Wireless USB 308
有没有人遇到过这个问题并且知道如何解决它？
编辑：添加 dmesg 输出
usb 1-1: new high-speed USB device number 5 using xhci_hcd
usb 1-1: config 1 has an invalid interface number: 9 but max is 0
usb 1-1: config 1 has no interface number 0
usb 1-1: New USB device found, idVendor=1199, idProduct=0fff
usb 1-1: New USB device strings: Mfr=3, Product=2, SerialNumber=4
usb 1-1: Product: USB MMC Storage
usb 1-1: Manufacturer: Sierra Wireless, Incorporated
usb 1-1: SerialNumber: SWOC22905731
usb-storage 1-1:1.9: USB Mass Storage device detected
usb-storage: probe of 1-1:1.9 failed with error -5
usbcore: registered new interface driver usb-storage
usb 1-1: USB disconnect, device number 5
usb 1-1: new high-speed USB device number 6 using xhci_hcd
usb 1-1: config 1 has an invalid interface number: 7 but max is 4
usb 1-1: config 1 has no interface number 2
usb 1-1: New USB device found, idVendor=1199, idProduct=68a3
usb 1-1: New USB device strings: Mfr=3, Product=2, SerialNumber=4
usb 1-1: Product: USB 308
usb 1-1: Manufacturer: Sierra Wireless, Incorporated
usb 1-1: SerialNumber: 355385035042361
sierra 1-1:1.0: Sierra USB modem converter detected
usb 1-1: Sierra USB modem converter now attached to ttyUSB0
sierra 1-1:1.1: Sierra USB modem converter detected
usb 1-1: Sierra USB modem converter now attached to ttyUSB1
sierra 1-1:1.3: Sierra USB modem converter detected
usb 1-1: Sierra USB modem converter now attached to ttyUSB2
sierra 1-1:1.4: Sierra USB modem converter detected
usb 1-1: Sierra USB modem converter now attached to ttyUSB3
usb 1-1: Incompatible driver and firmware versions
usb 1-1: USB disconnect, device number 6
sierra ttyUSB2: resubmit read urb failed.(-19)
sierra ttyUSB2: resubmit read urb failed.(-19)
sierra ttyUSB2: resubmit read urb failed.(-19)
sierra ttyUSB2: resubmit read urb failed.(-19)
sierra ttyUSB2: resubmit read urb failed.(-19)
sierra ttyUSB2: resubmit read urb failed.(-19)
sierra ttyUSB2: resubmit read urb failed.(-19)
sierra ttyUSB2: resubmit read urb failed.(-19)
sierra ttyUSB0: Sierra USB modem converter now disconnected from ttyUSB0
sierra 1-1:1.0: device disconnected
sierra ttyUSB1: Sierra USB modem converter now disconnected from ttyUSB1
sierra 1-1:1.1: device disconnected
sierra ttyUSB2: Sierra USB modem converter now disconnected from ttyUSB2
sierra 1-1:1.3: device disconnected
sierra ttyUSB3: Sierra USB modem converter now disconnected from ttyUSB3
sierra 1-1:1.4: device disconnected
编辑：尝试设置usb_modeswitch：
sudo usb_modeswitch -v 119 -p 68a3 -S
输出：
Looking for default devices ...
No devices in default mode found. Nothing to do. Bye.
编辑：修复了usb_modeswitch命令中的拼写错误
sudo usb_modeswitch -v 1199 -p 68a3 -S
该命令当时运行正常，但没有效果。
答案1
在多台计算机和多个操作系统上测试该设备后，宽带棒似乎存在硬件问题。