The question is, How? I have the same problem and I can't get my Roku TV to even recognize the streambar that was working fine for several months. I can't reconnect it to the network unless/until the TV recognizes it.
You have to switch to the Streambar remote, and navigate the on screen menu of the Streambar instead of the tv menu. Did you pair the Streambar remote to your Roku tv? If so you will have to re-pair it back to the Streambar, and fix the wifi via the Streambar settings.
Edmund Roku Community Streaming Expert
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