XS1935-12F

gbiondi

Hi,

I installed 5 1GB SFPs on this switch, with some vlans.. it works well except that every day and then (3 times a day on average) it does a 'warm start' - I attach the logs:

1 2026-06-30T06:39:19+01:00 IN authentication: HTTP(s) user admin login [IP address = 192.168.113.122]
2 2026-06-30T06:33:58+01:00 IN authentication: HTTP(s) user admin logout due to session timeout [IP address = 192.168.113.122]
3 2026-06-30T06:28:46+01:00 IN authentication: HTTP(s) user admin login [IP address = 192.168.113.122]
4 2026-06-29T19:38:22+01:00 NO system: Gets the time and date from a time server successfully
5 2026-06-29T19:38:21+01:00 DE interface: Port 11 link up 1G/F
6 2026-06-29T19:38:20+01:00 DE interface: Port 5 link up 1G/F
7 2026-06-29T19:38:20+01:00 DE interface: Port 4 link up 1G/F
8 2026-06-29T19:38:19+01:00 DE interface: Port 3 link up 1G/F
9 2026-06-29T19:38:19+01:00 DE interface: Port 2 link up 1G/F
10 2026-06-29T19:38:18+01:00 DE interface: Port 1 link up 1G/F
11 2026-06-29T19:37:49Z NO system: System warm start
12 2026-06-29T19:37:49Z IN system: Image 1 F/W version V2.00(ACLN.2) | 04/29/2026 boot up
13 2026-06-29T19:37:49Z AL system: System has reset without management command
14 2026-06-29T13:28:02+01:00 NO system: Gets the time and date from a time server successfully
15 2026-06-29T13:27:59+01:00 DE interface: Port 11 link up 1G/F
16 2026-06-29T13:27:59+01:00 DE interface: Port 5 link up 1G/F
17 2026-06-29T13:27:59+01:00 DE interface: Port 4 link up 1G/F
18 2026-06-29T13:27:58+01:00 DE interface: Port 3 link up 1G/F
19 2026-06-29T13:27:58+01:00 DE interface: Port 2 link up 1G/F
20 2026-06-29T13:27:57+01:00 DE interface: Port 1 link up 1G/F
21 2026-06-29T13:27:28Z NO system: System warm start
22 2026-06-29T13:27:28Z IN system: Image 1 F/W version V2.00(ACLN.2) | 04/29/2026 boot up
23 2026-06-29T13:27:28Z AL system: System has reset without management command
24 2026-06-28T19:40:09+01:00 NO system: Gets the time and date from a time server successfully
25 2026-06-28T19:40:06+01:00 DE interface: Port 11 link up 1G/F
26 2026-06-28T19:40:06+01:00 DE interface: Port 5 link up 1G/F
27 2026-06-28T19:40:06+01:00 DE interface: Port 4 link up 1G/F
28 2026-06-28T19:40:05+01:00 DE interface: Port 3 link up 1G/F
29 2026-06-28T19:40:05+01:00 DE interface: Port 2 link up 1G/F
30 2026-06-28T19:40:03+01:00 DE interface: Port 1 link up 1G/F
31 2026-06-28T19:39:35Z NO system: System warm start
32 2026-06-28T19:39:35Z IN system: Image 1 F/W version V2.00(ACLN.2) | 04/29/2026 boot up
33 2026-06-28T19:39:35Z AL system: System has reset without management command

Zyxel_Tina

Hi @gbiondi,

Based on the log information provided, the behavior appears to be an abnormal reboot. To further investigate, we kindly ask you to collect a tech support file and share it with us via private message.

https://community.zyxel.com/en/discussion/21237/switch-how-to-collect-the-tech-support-info-on-v4-80-firmware-version-and-newer