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Device Health

The Device Health page monitors device uptime, connection reliability, and availability over time. It helps identify problematic devices and track overall system stability.

Overview​

Device Health tracking provides:

  • Uptime Percentages: Device availability over time period
  • Connection History: Visual timeline of online/offline states
  • Filtering: By status (online/offline)
  • Sorting: By uptime, name, last seen
  • Detailed Analysis: Per-device connection charts

Date Range​

Start Date: Beginning of analysis period End Date: End of analysis period

Default: Last 30 days

Shortcut Buttons: 7D, 30D, 90D — the button matching the current range is highlighted.

Common Periods:

  • Last 7 days: Recent reliability
  • Last 30 days: Monthly reliability
  • Last 90 days: Quarterly trends

Summary Statistics​

Four cards showing aggregate metrics for the selected period:

Devices Connected (nD): Count of devices that reported at least one connection event during the range. The label reflects the active range (e.g. 7D, 30D, 90D).

Average Uptime: Mean uptime across all devices

  • Color-coded: green (good), yellow (warning), red (poor)

Currently Offline: Count of devices currently disconnected

Currently Online: Count of devices currently connected

Device List​

Table of all devices with health metrics:

Columns:

  • Device: Device name
  • Current Status: Online (green) / Offline (red)
  • Uptime %: Availability percentage (color-coded)
  • Last Seen: Last successful connection time (relative timestamp)
  • Total Disconnects: Count of disconnection events
  • Avg Downtime (hrs): Average duration of each disconnection
  • Actions: View History button

Filtering​

Status Filter:

  • All: Show all devices
  • Online: Only currently connected
  • Offline: Only currently disconnected

Sorting​

Sort Options:

  • Uptime Ascending: Worst performers first (default)
  • Uptime Descending: Best performers first
  • Name: Alphabetical
  • Last Seen: Most recently seen first

Device Detail View​

Click View History on any device row to open a modal with detailed connection history:

Device Info:

  • Device name, uptime percentage, and total disconnect count

Connection Timeline Chart:

  • Step-line chart showing online/offline state over time
  • X-axis: Time period
  • Y-axis: Online (1) / Offline (0)
  • Shows exact transition times between connected and disconnected states

Uptime Calculation​

Uptime percentage = (Connected Time / Total Time) × 100

Example:

30-day period = 720 hours

Device connected for 718 hours Device disconnected for 2 hours

Uptime = (718 / 720) × 100 = 99.72%

Use Cases​

Identifying Problem Devices​

Find unreliable devices:

  1. Sort by Uptime Ascending

  2. Review devices with <95% uptime

  3. Click device for detail view

  4. Analyze disconnection patterns:

    • Random: Network issues
    • Regular: Power cycling, scheduled reboots
    • Clustered: System-wide event

  5. Take corrective action

SLA Compliance​

Verify service level agreements:

Requirements:

  • Critical devices: 99.9% uptime (3 failures per year)
  • Important devices: 99% uptime
  • Standard devices: 95% uptime

Report:

  1. Filter to critical devices
  2. Check uptime percentages
  3. Generate report for non-compliant devices
  4. Plan remediation

Maintenance Planning​

Schedule preventive maintenance:

  1. Identify devices with declining uptime
  2. Note patterns (weekly drops, monthly failures)
  3. Schedule maintenance before failures
  4. Track improvement after maintenance

Network Issues​

Detect network problems:

  1. If many devices offline simultaneously

    • Check network infrastructure
    • Review switch/router logs
    • Verify DHCP/DNS

  2. If single device intermittent

    • Check device network settings
    • Verify cable connections
    • Test WiFi signal (if wireless)