Script for interface LTE to restart

Halfeez92 · February 4, 2018, 11:00am

Hi,

I have an SXT LTE modem, now the problem is sometimes the LTE connection will drop and I have to manually log in into the GUI and disable and re-enable back the interface. So I wish someone can help me with the scripting that can:

ping check at 8.8.8.8 and if there any drop more than 20 packet,
it will auto disable it and logged then re-enable the interface back.
else it will run for every 1 minute on the scheduler with ‘Connection OK’ logged.

Thank you.

Grickos · February 4, 2018, 11:19am

:if ( [/ping 8.8.8.8 count=10 size=64 interval=2s ] =0) do={
:log error “-----No ping”;
/system routerboard usb power-reset duration=10;
:log error “----Reset USB Power”;
} else={
#:log info “-----LTE OK-----”;
}

Grickos · February 4, 2018, 11:25am

You can change what you want. but time 1min is too short. If something really is not good with lte, it will loop in, restart every minute. Or add script restart lte pauses 1.min restart then pauses 5.min …15.min

klaus007 · February 4, 2018, 11:30am

Hello!

I have the same problems with two NetMetals and Huawei ME909s-120 since 6.41.
At the moment I make a restart of the LTE1-interface every 24hours an I would be also interested in such script.

regards

Halfeez92 · February 4, 2018, 12:51pm

yea i was thinking the same but i just want to give a sample situation. Because sometimes my lte interface will drop when there is no activity or in idle state

eworm · February 4, 2018, 8:35pm

Just use “/ tool netwatch” for that…

Halfeez92 · February 11, 2018, 6:20pm

Speaking of which, does LTE interface built in SXT LTE can be power reset on the system USB?

zivtal · February 11, 2018, 8:08pm

enable/disable to lte interface not help? if you need restart, just reboot the device it’s only stadalone lte device…

:if ([/ping 8.8.8.8 count=10 size=64 interval=2s]=0) do={
	:log error "LTE DOWN";
	/system reboot;
} else={
	:log info "LTE FINE";
}

zivtal · February 11, 2018, 8:13pm

I don’t really know the SXT LTE, but you can try (disable and enable lte interface):

:if ([/ping 8.8.8.8 count=10 size=64 interval=2s]=0) do={
	:log error "LTE DOWN";
	/interface disable <interface>
	/delay 1s
	/interface enable <interface>
} else={
	:log info "LTE FINE";
}

owenilc · February 12, 2018, 10:01pm

Thanks, the following scripts works for me! I add this scripts to Tools ==> Netwatch ==> Host, when Host 8.8.8.8 is down, run script.
My 4G/LTE USB Dongle is Huawei E8372h-607.

I don’t really know the SXT LTE, but you can try (disable and enable lte interface):
:if ([/ping 8.8.8.8 count=10 size=64 interval=2s]=0) do={
	:log error "LTE DOWN";
	/interface disable <interface>
	/delay 1s
	/interface enable <interface>
} else={
	:log info "LTE FINE";
}

canvcol · November 21, 2019, 11:33am

Hello, hoping someone might have some ideas on this.

I have a wAP LTE kit in a remote location with mediocre signal. Currently I am using the system watchdog with 8.8.8.8 set to ensure things are kept alive. It is activating probably every one or two hours.

My questions:

Is it a bad idea to use the system watchdog in this case? (e.g. doing so many “harsh” reboots?)
(the device is now in a very remote location and I would rather not play around too much in case I lose my ability to connect remotely!)
If I should use one of the scripts here - would it be better to use the “/interface disable/enable” method or the “usb power-reset” method? For wAP LTE kit
Is there any reason not to use Tools Netwatch to implement this script? (e.g. vs scheduler)