📑 I have found these related issues/pull requests

Push monitors with long intervals (>24h) fail to detect DOWN status

🛡️ Security Policy

• I have read and agree to Uptime Kuma's Security Policy.

📝 Description

Push monitors with intervals longer than ~24 hours never transition to DOWN state, even after the configured timeout has long passed. The monitor stays UP indefinitely.

👟 Reproduction steps

1. Create a push monitor with 30-hour interval (108000 seconds)
2. Send one push to make it UP (green)
3. Wait >30 hours without sending another push
4. Observe: Monitor stays UP indefinitely

👀 Expected behavior

Monitor should transition to DOWN (red) after 30 hours without receiving a push.

😓 Actual Behavior

Monitor stays UP (green) forever, never triggering DOWN notifications.

🐻 Uptime-Kuma Version

2.0.0 or 2.0.2 or 2.1.0-beta.3

💻 Operating System and Arch

Linux tanis 6.8.0-94-generic #96-Ubuntu SMP PREEMPT_DYNAMIC Fri Jan 9 20:36:55 UTC 2026 x86_64 x86_64 x86_64 GNU/Linux

🌐 Browser

Brave 1.86.142 (Official Build) (arm64)

🖥️ Deployment Environment

• Runtime Environment:
  • Docker: Version 27.5.1 (Build 27.5.1-0ubuntu3~24.04.2)
  • Docker Compose: Version 2.37.1
• Database:
  • SQLite: Embedded
• Database Storage:
  • Filesystem:
    • Linux: ext4
  • Storage Medium: SSD
• Uptime Kuma Setup:
  • Number of monitors: 75

📝 Relevant log output