Device names (my given names on both sides) correct
One clue to the problem is that there comes a connect request on one of the two devices.
It has the original device name of the other device - but with another device ID.
Device “carl-Latitude-E5570” (6SKQXCM-IHMC765-O25WAE6-VN5TQWQ-5C4XLY5-QXFQB6J-FXFFQQ5-XGNJGAL at 164.90.190.7:22067) wants to connect. Add new device?
When, in the next dialogue, I try to accept the new device, the OK button cannot be pressed regardless of settings
This looks more like a problem with the Web GUI. What do you use to access it? If it’s just a Web browser, and not some kind of a 3rd party wrapper, then I’d suggest trying a different browser and see what happens there.
I didnt install another browser but I reinstalled Syncthing on the Linux machine. After that the connection invite (on the Windows machine) started working. Now syncing! Thannks tomasz86