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Is it possible select and force the wireless connection to a particular frequency with NetworkManager in RHEL6 versions?

Solution Unverified - Updated 2015-08-17T06:25:43+00:00 -

Issue

Our wireless AP emits both 5 Ghz and 2.4 Ghz signals with the same SSID (on different channels).
We have most of our RHEL machines connect to the 5 Ghz channels but some other RHELs don't.
How could we force to use the 5 Ghz channel instead of the 2.4 Ghz one?
Is it possible select and force the wireless connection to a particular frequency with NetworkManager in RHEL6 versions?

Environment

Red Hat Enterprise Linux (RHEL) 6.4.
NetworkManager utility.
Wireless network adapter with dual radio band support (5 Ghz / 2.4 Ghz).

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