Are you 100% sure that both your PC and your Wemos are connected to the same Wi-Fi network? I’ve seen a situation where a a dual-band router was being used an the MCU was connected to the 2.4ghz network and the PC connecting to the 5ghz network (which had the same ssid) and the router want bridging the two connections.
If your router is set-up to use IPv6 then try turning this off.
Ditto with UPnP.
As @Costas said, its likely to be a firewall issue. Try turning off Windows firewall altogether.
Restarted windows, now Bonjour is running, But the same procedure gets the same results. No OTA port is showing. I tried turning off the antivirus, Avast, no change. I see it says Java platform is allowed.
I don’t know ‘who’s at fault’ here really but all I know is the system doesn’t seem to work very well, or at least is not documented very well officially. I’ll have to find out how to let Avast selectively allow this activity.
I really appreciate your assistance it is a feature with major benefits that I was really looking forward to.
Thanks again. I hope anyone that finds this in the future may be helped by it.
No, it’s not well documented, I spent an entire day trying to figure this out, taking many, many troubleshooting steps that cost me an entire day’s worth of work on a project I am behind on already. So I completely disagree with you, but thanks again for your help. Maybe don’t take things so personally.
OTA works very well and it is all very well documented, just requires a modicum of research.
