Sudo /etc/init.d/networking restart (is depricated) Three different USB ports on the laptop plus using a USB-hub that is powered with an own power source Sometimes (in most cases) a reboot helps.Ĭould it be an issue with USB? Maybe something with not providing enough power? (Not as a normal USB stick, too - I am aware about the mode-switching issue in Linux, but this doesn't seem to be the problem here.) Lsusb does not find the device in the latter case. Sometimes, after the plug-in, a return from suspend mode, or just after a disconnect, it's not starting to blink or just seldomly and the connection does not appear again. It sometimes start to blink and the mobile broadband connection appears in network manager. E169/E620/E800 HSDPA Modem) is sometimes detected and sometimes not.
My mobile-broadband USB stick ( lsusb: 12d1:1001 Huawei Technologies Co., Ltd.