Problem with DS-KV6124-WBE1

[dex_910]

Hello,

I'm having an issue with my DS-KV6124-WBE1 door station.

My setup is:

• Router: TP-Link Archer AX55
• Switch: TP-Link TL-SG1016PE v6
• Door station: Hikvision DS-KV6124-WBE1
• Indoor monitor: DS-KH8520-WTE1

All devices are running the latest available firmware. The door station firmware is V3.9.0 build 251216.

The problem is that after approximately 24 hours, I lose the ability to establish an audio/video connection through Guarding Vision (Hik-Connect).

When I try to start live view, the app eventually reports that the streaming timed out.

At the same time:

• I can still remotely unlock the gate.
• I still receive push notifications when someone rings the doorbell.
• The indoor monitor works normally.
• The web interface works normally, including both video streams.
• Both RTSP streams work perfectly in VLC.
• Platform Access (Guarding Vision) shows Online in the web interface.

So far I have tried:

• changing the DNS servers (1.1.1.1 and 8.8.8.8),
• verifying time and NTP settings,
• changing the switch port,
• disconnecting the switch from the router,
• disconnecting the router from the Internet,
• rebooting the router,
• assigning a DHCP reservation (static IP) to the door station.

The door station is connected via wired Ethernet with PoE.

When I disable Platform Access (Guarding Vision) and immediately try to enable it again while the problem is present, the device reports Offline.

The only thing that restores audio/video is rebooting the door station.

I'm slowly running out of ideas. Has anyone experienced a similar issue or knows what could be causing this?