Section: Errors and diagnostics · Entire Knowledge Base
Table of Contents
Verify that the source network is workingDetermine the scale of the problemCheck the selected recordCheck DNSCheck Connection ModeCheck the result on another networkHow to check for a fixIf it doesn't helpVerify that the source network is working
Unplug Happ and open multiple sites. If they don't load and don't have an app, restore your Wi-Fi or mobile connection before continuing with the diagnosis. Restart your network connection and, if possible, compare the result to a different network.
Do not reset all network settings as the first step. Use reversible actions first and record the result of each test.
Determine the scale of the problem
Check separately:
- Whether the site opens in a different browser.
- Whether an app that uses the internet is working.
- Whether other domains are being opened.
- Whether the problem with another entry in Happ is repeated.
If only some sites do not open, continue according to the instructions About individual sites. If the problem only affects apps, check Application routing and exclusions.
Check the selected record
Upgrade your existing subscription in Happ and repeat the test with another available option. If another entry works, do not change the system settings: the problem is already localized quite narrowly. If all entries are not available, check the access period and run diagnostics of the entire list of servers.
Do not publish a personal link or insert it into third-party verification services.
Check DNS
A sign of a possible DNS problem is that websites do not open by name, although the connection itself appears to be active. First, reset the Happ DNS settings and the system to the last working state. If you changed them just before the error appeared, undo that change.
Change only one parameter at a time. A detailed procedure is given in the instructions "Happ doesn't have DNS working".
Check Connection Mode
Happ may use different modes depending on the platform. If the problem appears after switching TUN, system proxy, or routing rules, return to the previous mode and reconnect. Make sure that no other network profile is active on the system at the same time.
Do not copy settings from another operating system: the availability of the mode and its behavior may vary.
Check the result on another network
Connect via a different Wi-Fi network or mobile data without changing the rest of the settings. If Happ is only running on one network, the reason may be in the settings of the specific router, DNS, or network owner rules. Do not modify the router without preserving the current settings and a safe return path.
How to check for a fix
- Return one setting to the working value.
- Disable Happ completely.
- Start the connection again.
- Open two regular sites.
- Test one app.
- Repeat the test in a few minutes.
A single page load does not yet confirm stable operation. It is important to check both the sites and the application.
If it doesn't help
Save Happ version, OS, mode name, network type, test time, and result with a different record. If a log is available, remove subscription links, keys, and personal addresses from it before sending it.
The general sequence is found in the material About connection errors. If the Internet is not restored after disconnecting Happ, use another instruction — Restoring the network after an outage.
Frequently Asked Questions
Do I need to change my DNS right away?
No. First, determine whether the entire Internet or only individual domains are not open, and return the last working value if the DNS has changed recently.
Why does everything work through a different network?
This result indicates a dependency on a particular network. Check its DNS and rules separately without changing Happ settings at the same time.
Can I uninstall the app?
Reinstalling is a late step. Before uninstalling, you must retain access and make sure that the problem is not related to the network, server, or subscription.
Sources
The names of interface items may differ between the versions of the application and the operating system. Check the current version before changing the settings.
Keep the exact error text and device information by hiding your personal information beforehand.
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— the Russian version of the manual has been published, internal navigation, FAQ and structured data have been added.