# Mautic forgetting known visitors
**URL:** https://forum.mautic.org/t/mautic-forgetting-known-visitors/3824
**Category:** Product Support
**Created:** [May 20, 2016, 2:53am UTC](https://forum.mautic.org/t/mautic-forgetting-known-visitors/3824 "2016-05-20T02:53:03Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@Augentia](https://forum.mautic.org/u/Augentia)
#### Post date: [May 20, 2016, 2:53am UTC](https://forum.mautic.org/t/mautic-forgetting-known-visitors/3824/1 "2016-05-20T02:53:03Z")
Known visitors are turning into unknown - whenever the session IP changes. For e.g., I tested it in another computer by filling a form - and for the whole day, whichever page I visited in the website - Mautic tracked and reported it as known visitor. Next day (the wifi router was switched off in the night - and a new session with a different IP), when the same computer is used to fill a form - Mautic says some unknown visitor came to the site. Is Mautic not placing a cookie in the users browser - something which most standard marketing automation solutions do?
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### Author:  [@Augentia](https://forum.mautic.org/u/Augentia)
#### Post date: [May 20, 2016, 2:53am UTC](https://forum.mautic.org/t/mautic-forgetting-known-visitors/3824/2 "2016-05-20T02:53:03Z")
Known visitors are turning into unknown - whenever the session IP changes. For e.g., I tested it in another computer by filling a form - and for the whole day, whichever page I visited in the website - Mautic tracked and reported it as known visitor. Next day (the wifi router was switched off in the night - and a new session with a different IP), when the same computer is used to fill a form - Mautic says some unknown visitor came to the site. Is Mautic not placing a cookie in the users browser - something which most standard marketing automation solutions do?