--- title: ALICE Stops Greeting Visitors After ALICE Directory Upgrade description: This guide troubleshoots when motion detection cannot connect to the camera due to a Windows .NET Framework issue. --- [Skip to content](https://kb.alicereceptionist.com/after-ard-upgrade-to-5.5-motion-detection-is-not-working-in-older-windows-os-versions#main-content) English Show submenu for translations [More support](https://kb.alicereceptionist.com/kb-tickets/new?hsLang=en) [![ALICE Logo](https://kb.alicereceptionist.com/hs-fs/hubfs/dBZJfwoxBhs8Xv4tDc09c1ZxvaB63hbH_A-1.png?width=200&height=93&name=dBZJfwoxBhs8Xv4tDc09c1ZxvaB63hbH_A-1.png)](https://kb.alicereceptionist.com/?hsLang=en) - [Submit A Helpdesk Ticket](https://share.hsforms.com/1HZ-ebsN3TzWAiEUV7bCVgwrei6t) - [Tickets Listing Page](https://support.alicereceptionist.com/tickets-view?offset=0) - [Knowledgebase](https://kb.alicereceptionist.com/) - [Documentation Portal](https://kb.alicereceptionist.com/documents) - [Sign Out](https://support.alicereceptionist.com/_hcms/mem/logout) Open main navigation Close main navigation - [Submit A Helpdesk Ticket](https://share.hsforms.com/1HZ-ebsN3TzWAiEUV7bCVgwrei6t) - [Tickets Listing Page](https://support.alicereceptionist.com/tickets-view?offset=0) - [Knowledgebase](https://kb.alicereceptionist.com/) - [Documentation Portal](https://kb.alicereceptionist.com/documents) - [Sign Out](https://support.alicereceptionist.com/_hcms/mem/logout) - English Show submenu for translations - [More support](https://kb.alicereceptionist.com/kb-tickets/new) - Contact us Contact us How can we help you? - There are no suggestions because the search field is empty. 1. [ALICE Receptionist Knowledge Base](https://kb.alicereceptionist.com/?hsLang=en) 2. [AI Avatar](https://kb.alicereceptionist.com/ai-avatar?hsLang=en) 3. [Avatar Troubleshooting](https://kb.alicereceptionist.com/ai-avatar?hsLang=en#avatar-troubleshooting) December 17, 2024 # ALICE Stops Greeting Visitors After ALICE Directory Upgrade ## This guide troubleshoots when motion detection cannot connect to the camera due to a Windows .NET Framework issue. This issue usually occurs after upgrading the ALICE Directory. The camera can be seen by the ALICE application, but not accessed for motion detection. 1. Run Windows updates and restart the PC.  2. If the issue still persists, install .net framework 4.8 from Microsoft's website for your Windows OS. 3. 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