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I'm using a Sierra Wireless USB modem. I have everything working ok using wvdial, udev rules, etc. Every couple of hours, the modem drops the connection and the USB port disappears. I'm able to get it back into a state where it can connect again by using this code:
udevadm trigger --action=addThis machine will use the USB modem as the only internet connection and it will be remotely located, so I need to find a way to keep the connection up. Does anybody know what would cause the connection to fail in this way? I can run a script to check whether the connection is working and use use udevadm to restart it, but I'd rather find out if there's a way to prevent the modem from hanging up in the first place.
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