FlowBuilder

Troubleshooting: no internet flowchart

Troubleshooting charts work outward from the cheapest check to the most expensive one. That order is the whole design: restarting the router costs a minute, a call to the provider costs an afternoon.

How to write steps
  • One step per line. Lines connect top to bottom.
  • End a line with ? to make a decision. Indent the answers under it: yes: Ship it, no: Refund.
  • Indent more lines under an answer to continue that branch.
  • -> Step name jumps back to an earlier step (a loop). no -> Step name works inside a decision.
  • Start, End, Done or Stop become rounded start/end shapes.
  • Shape tags: [input] [output] [doc] [db] [sub] [manual] [delay].
  • lane: Sales on its own line puts the next steps in a swimlane.
  • Or paste Mermaid code starting with flowchart TD. It’s detected automatically.

Mermaid code for this chart
flowchart TD
  n1(["Start"])
  n2{"Do other devices have internet?"}
  n3["Restart this device"]
  n4{"Working now?"}
  n5(["Done"])
  n6["Forget and rejoin the Wi-Fi network"]
  n7["Restart the router and wait 2 minutes"]
  n8["Check the provider's status page"]
  n9[/"Call the provider"/]
  n1 --> n2
  n2 -->|"yes"| n3
  n3 --> n4
  n4 -->|"yes"| n5
  n4 -->|"no"| n6
  n6 --> n5
  n2 -->|"no"| n7
  n7 --> n4
  n4 -->|"yes"| n5
  n4 -->|"no"| n8
  n8 --> n9
  n9 --> n5

The steps as text

This is the source of the chart above, so the template is readable even without the diagram.

Start
Do other devices have internet?
  yes: Restart this device
    Working now?
      yes: Done
      no: Forget and rejoin the Wi-Fi network
        Done
  no: Restart the router and wait 2 minutes
    Working now?
      yes: Done
      no: Check the provider's status page
        [output] Call the provider
        Done

More flowchart examples

Yes/no: should I answer this email now?A light yes/no flowchart for triaging email in under a minute.Login processUsername and password check with a retry limit and account lockout.Algorithm: largest of three numbersThe textbook algorithm flowchart: read A, B, C and print the largest.Algorithm: sum of 1 to N (loop)A counting loop: add the numbers from 1 to N and print the total.

Questions people ask

How do I edit this troubleshooting: no internet flowchart?

Change the text in the editor. Each line is a step, lines ending in “?” are decisions, and indented lines are the answers. The chart redraws as you type and is saved in your browser.

Can I download it?

Yes: PNG for documents and slides, SVG for sharp printing, or Mermaid code for GitHub, Notion and Obsidian.