Updates on the issue:Found out that the server was replying with a 302 file has been moved to https://.The original request was with http://.
Created new test project using a https:// file request, build and uploaded updates.Wyupdate now fails again with the same indication "An unexpected error occurred on a send".Investigating with wireshark I see the the following https message series between wyupdate and the server.SYN from clientSYN ACK from serverACK from clientClient HelloACK from serverRST ACK from serverWyupdate seems to try 4 times using remote ports 10165-10168.I checked with my host and they confirmed that these ports are blocked but they cannot open them for all ip's.Is there a recommended solution for this problem?