# \#logon

**URL:** https://forums.digi.com/tag/logon/4353.md

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## [impossible to connect after firmware upgrade](https://forums.digi.com/t/impossible-to-connect-after-firmware-upgrade/21403)

<div class="topic-metadata">

**Author:** [@Poligrafici](https://forums.digi.com/u/Poligrafici)\
**Replies:** 1\
**Last updated:** [May 28, 2020, 6:51am UTC](https://forums.digi.com/t/impossible-to-connect-after-firmware-upgrade/21403 "2020-05-28T06:51:20Z")

</div>

Hi, I’ve installed the latest release of firmware on my real port USB/14, but I cannot logon to the sistem after this. Can someone help me?