FTP issues after update to Pispala on C2

After the last update to version 5.1.0.11 on Jolla C2 apps (PyFTP, WunderFTP, Airsail Transfer) for transferring files between phone and PC stopped working. the app “Airsail Transfer” even cannot establish en IP and port address. Also a ping probe to the IP (Wifi) of the phone gives a negative result. Besides this, the phone is connected to Wifi and is fully operational!

Reinstalling the apps does not correct the error.

WunderFTP gives me this output:

220 pyftpdlib 1.5.10 ready.
500 Command "GET" not understood.
500 Command "HOST:" not understood.
500 Command "USER-AGENT:" not understood.
500 Command "ACCEPT:" not understood.
500 Command "ACCEPT-LANGUAGE:" not understood.
500 Command "ACCEPT-ENCODING:" not understood.
500 Command "DNT:" not understood.
500 Command "SEC-GPC:" not understood.
500 Command "CONNECTION:" not understood.
500 Command "UPGRADE-INSECURE-REQUESTS:" not understood.
500 Command "PRIORITY:" not understood.
500 Command "" not understood.

thanks, Walter

Those errors look like the remote side doesn’t speak FTP, but rather http.
Are you sure the issue is not with the remote side?

Which client are you using?

well, the connection is actually a simply http with local IP and specified port, opened in a browser, it worked before the update flawlessly.