Roku Device Features, Settings & Updates

[MWDXER]

I have an Express+ and I have been trying to mirror my Laptop (Google or Firefox) to the Roku. It doesn't seem to find anything. Under devices, it says "none" and a message under that saying always blocked devices.  Why would it say that, if the feature is available. Any idea if this feature will work?  I have cast my Laptop and Chromebook via the Chromecast easily, but with the Roku, so far no luck.  Thanks for any advise.

[RokuTannerD]

Thanks for the note here!

Depending on the model of Express+ you own, screen mirroring may not be supported. Model 3710 does not support the feature. If you're using model 3910, the feature is only supported i the device is connected to your TV via an HDMI cable. 

See more specific information here: https://support.roku.com/article/208754928-how-do-i-use-screen-mirroring-with-my-android-or-windows-...

Thanks,
Tanner

[MWDXER]

I have two Express+. One is the 3710 and the other 3900. But the 3900 is connected to an older TV w/o the HDMI input. Thanks for the reply.