# Ping does not go through

**URL:** <https://forum.legato.io/t/ping-does-not-go-through/6975>\
**Category:** Uncategorized\
**Created:** [December 17, 2025, 7:21am UTC](https://forum.legato.io/t/ping-does-not-go-through/6975 "2025-12-17T07:21:35Z")\
**Posts on this page:** 1\
**Showing post:** 16

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**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.legato.io/jyijyi/32/822_2.png) [@jyijyi](https://forum.legato.io/u/jyijyi)\
**Post date:** [January 23, 2026, 2:42pm UTC](https://forum.legato.io/t/ping-does-not-go-through/6975/16 "2026-01-23T14:42:33Z")

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Btw, to investigate if your legato app increases the battery consumption, you can use the nc binary and see how is the power consumption in firmware r17:

> [@fwupdateDownloader sample app](https://forum.legato.io/t/fwupdatedownloader-sample-app/6465/2):
>
> I have modified the app as TCP server and tried in USB ECM interface, it was working fine: You can set up TCP server on port 5000 by this nc binary to see if you can connect from outside: chmod 777 ./nc ./nc -l -p 5000 [nc](https://forum.legato.io/uploads/short-url/a2ZtPIhRFpHfkCiSnt4OAy3o1Ia) (756.4 KB)

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