Troubleshoot computer Internet access
Separate connection, Wi-Fi coverage, browser and destination failures.
Follow the method ↓
The answer in 30 seconds
A failure in one website is different from losing connectivity on every device. A repeatable comparison is more informative than changing many settings.
Check the active connection, open two known sites and compare another device. Use Ethernet where practical to distinguish Wi-Fi issues from access problems.
Examples to adapt
Inspect the wireless coverage and settings before blaming the external line.
Compare profile, extensions and the actual page action.
Follow the method
- 1Read network status
Identify Wi-Fi or Ethernet and the intended network. Check whether the system reports an active connection.
- 2Test two destinations
If only one fails, investigate that site. If both fail, compare another device on the same connection.
- 3Compare cable and Wi-Fi
A practical Ethernet test can help isolate coverage or interference. Keep the destination and action the same.
- 4Check the browser separately
Try another up-to-date browser or a private window. A difference suggests a context or extension issue; test extensions one at a time.
- 5Restart carefully
Save work first. Follow the computer and router documentation, allowing the connection indicators to settle before retesting.
A checklist to keep
Use these checks to record what you found. The grid supports a decision; it does not make one for you.
| Check | What to examine | Action |
|---|---|---|
| Network | Active route and status | Inspect system information |
| Destination | One or several sites affected | Test two known pages |
| Coverage | Ethernet compared with Wi-Fi | Keep the test consistent |
| Browser | Profile and extension context | Change one variable |
Free, no sign-up. UTF-8 text with semicolon-separated columns.
What to check
Do not publish network credentials.
Record changes and reversal steps.
A private-window result is a diagnostic clue, not proof of one cause.
Common questions
Should I reset everything immediately?
No. Compare sites, devices and connection types first.
What should I tell support?
Device, connection type, symptoms and the tests already performed, without credentials.
Sources and documentation
Documentation consulted on . Examples are illustrative; interfaces and results may change.