Hello all,
In the last few days ARRL has made a change in the LotW server that affects some vulnerabilities and LoTW synchronisation didn't work causing a HTTP/1.1 400 Bad Request error. I have had to adapt the HTTP request to meet this new security requirements.
You can download a fix here:
http://www.swisslogforwindows.com/Beta/Swisslv5.exe
Simply replace the EXE in the Swisslog folder. Version number is still 5.96 but release date is from 3rd August 2017.
Best 73