No Final Stage For Windows EXE - Different IP subnet?

[ifflanb]

Hi, just tried flashing my Sonoff 4CH on Windows. I don't get the FinalStage SSID. Noticed that it said
"The IP address of <serve_host> (192.168.87.62) is not assigned to any interface on this machine."
My local network is on the subnet of 192.168.87.... so would this be the problem? Can I reconfigure it to use my subnet?

thanks
debug_1629935465.log

[sralus]

I have the s26r2tpf con sonoff (Sonoff S26R2 WLAN smart socket, 16A 4000W socket) with firmware 3.5.1
Is it possible to flash this OTA?
unfortunately there is no final stage for me.