Streambar Pro won’t connect 5ghz

Troybarwick 

The Roku Streambar Pro (9101) should be able to connect to the 5ghz using DFS.  I am able to use my Streambar (9102) on DFS 2e channels (100-140).

I don't need or use DFS on my network, so only enabled for testing purposes recently with Roku and some other devices.

I think your issue may be more the Eero mesh determining that the 2.4ghz band is a better band connection for your device. (Of course, 5ghz-capable unsupported devices will also be forced to 2.4ghz as well).

You can temporarily disable the 5ghz band to help get 2.4ghz devices to connect on Eero, but unfortunately cannot do it the other way to force devices on the 5ghz band.

I believe the only way to disable the Eero DFS (since now enabled under ACS/auto channel selection by default) is still only available by placing the Eero in "Bridge mode". (place a router in front of the connection to manage the network).

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Maybe try taking some of your other Roku devices (and other 5ghz devices) off the network (for testing) and see if the Streambar will connect on the 5ghz.  May just be an issue with the Eero mesh management.  Additionally, try moving the Streambar to the different locations where your other Roku devices are currently able to connect.  There also exists the possibility that the Eero firmware is just having an issue recognizing the Streambar as DFS compatible.

Roku Support now has an updated list of Roku DFS excluded models.  If not on the list, then the device theoretically should be supported. https://support.roku.com/article/213122277