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Sub Hub Creates New Network Instead of Extending

If your sub hub is creating a new network rather than extending your existing network, you have probably created a Double NAT (Network Address Translation). There are two things you can try to resolve the problem.

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 Report a problem or send a log file in SmartThings
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If your ZigBee device is not working with your hub, be sure to check the power to the device and the hub's network connection. However, it may be necessary to reset the ZigBee device and restart the hub to fix the problem.
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 Check the hub's firmware version
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