After Kuailian download: a window or tray icon means setup worked

How do I know Kuailian finished installing? After the installer exits, open the main window or find the tray icon. Setup is complete. If you cannot connect, add permission and switch a nearby node — “no network” is not “not installed.”

Download’s job is landing the file and putting it on the system. Whether traffic flows is a client and node issue — see the guide.

Three “I think it failed” cases

Another window covers the UI; the taskbar already has an icon.
You saved the other OS package; the installer flashes and exits.
Company policy blocked the process. Ask an admin — do not download a third exe.

Permission still comes after the progress bar

Windows may need Run as administrator. Mac needs Privacy & Security; see Apple Support. More in the FAQ.

Wrong package? match the cards. Need the file? Open the download page.

FAQ

No window after install — failed?

Check the tray and the app list. If nothing is there, you may have the wrong OS package. Window up but no connect: permission in the guide.

Progress bar finished — download again?

The bar only means the file wrote to disk. You still grant OS permission and sign in with the purchase-channel account.

Where do later upgrades come from?

Return to this download page. Do not keep an old chat package.

Three “I think it failed” cases

Permission still comes after the progress bar

FAQ

Need the installer or platform notes?