Where setup commonly breaks down
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Download links and platform architectures are mixed together
Windows installers, macOS chip architectures, and Android package formats all differ. File names alone often do not make the right choice obvious.
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No strategy selected after importing a subscription
The configuration is present in the client, but the proxy group is still using its default option, so actual traffic may take a different path than expected.
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System proxy and TUN mode are enabled together
These two methods operate at different interception layers. Enabling both without a clear goal can make it harder to identify the source of a problem.
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Reinstalling repeatedly when something fails
Port conflicts, configuration syntax, permissions, and DNS can all cause connection problems. Reinstalling the client usually does not address these causes.