USB modem reset via CLI or watchdog


#1

Hi, My USB WAN Modem randomly freezes and needs to be power-cycled or unplug and plug USB modem back into pep20 or SOHO (same behavior across 20+ sites) which is hard for remote site.



Using: USB Modem AirCArd U313 ATT across all remote locations. In some of them using External antennas to get signal @ stable high level.

Question is: Is it possible to make USB reset via CLI or watchdog in the GUI. Signal level is not the case. Physically remove and plug USB modem back helps re-initialize modem and reconnect.

via CLI I getting this:
> system modem reset
sh: unbind: unknown operand
Usage: ./cli

./cli bandwidth.transferred
./cli bandwidth.aggregated
./cli bandwidth.wan
./cli status.clientlist
./cli status.cpuload -p NUM]
./cli status.ha
./cli status.s2svpn
./cli status.session
./cli status.wan -i CONNECTION_ID]
./cli system.debugmode
./cli system.eventlog -d] -n NUM]
./cli system.info
./cli system.reboot -y] -d NUM]
./cli system.restore
./cli system.uptime
./cli modem.reset
>


#2

Hi,

Appreciate if you can open ticket at https://cs.peplink.com/contact/support.


#3

But I’m not sure if its an issue or this feature just not avail as my commands are not in documentation. May be I just have wrong syntax.


#4

Hi,

For those models with the USB power control capability, we have already implemented the watchdog for the USB power cycle. Thus, it is automatic and no CLI is needed.


#5

hm which models support it?


#6

and how do I know that in this case USB watchdog works properly?



#7

When the watchdog triggers the power cycle, the USB device in the dashboard will be disappeared for a instance. The Surf SOHO supports this functionality. For the Balance 20, we suggest you can open up a ticket, and our team will try to figure out the cause of the Aircard 313U connectivity issue.