Hello, I have/had the same issue (but no real solution). After Windows patches yesterday und Microsoft Store App updates no communication between AAO and streamdeck any more. I checked and disabled the firewall, no change.
I also tested WebPages -> timeout. So it is not only affecting StreamDeck.
I rolled back to a Windows restore point from last sunday, and now everything is normal again. Of course, this is just a preliminary workaround. Seems to be a tricky thing.
Edit:
I just found this topic (there was a post in a german forum VFR-Flightsimmer.de , saying that is a problem with recent patches concerning http/localhost. It refers to an elvatex forum, there is also a possible solution described. I will test it an give a feedback here.
Next Edit:
I repeated the Windows Update procedure (after the previously roll back), but now everything is fine. Perhaps the Patches have been fixed in the meantime? I do not know.