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I'm using TP-Link products for many years now.
Previously a WN7200 with antenna ANT2409 : worked fine with Mac OS 10.10 (and a BearExtender driver)

Now I'm using Mac OS 10.11 wih an Archer T2UH but the result is less good !
The external antenna ANT2409 is worst than with the antenna provided with the dongle (probably due to the fact the T2UH is dual band! )
Has somebody a positive experience with an external antenna (for a 2.4 GHz hotspot) combined with the Archer T2UH??
Or is there a way to force the T2UH to work only in 2.4 GHz band?

Thanks for any help