Changed to VPS now getting Error trying to save file: Error downloadingAnswered

Hi everyone, 

So I have moved from a shared server to my own VPS (managed).

my FTP is working (files are appearing on the server fine)

but my download is not working when the wyupdate runs.

I'm getting this error:

Error trying to save file: Error downloading "http://MyServer.com.au/FolderName/wyserver.wys": The underlying connection was closed: An unexpected error occurred on a send.

I can't figure out where I am going wrong or even where to look next to try things.
Any advice on what I should be doing?
I've looked the server setup walkthrough and I am running Apache but I havent done any of the MIME stuff (this is all a bit over me now)

Thanks for any help!

Thanks Wyatt.  I'm really sorry because I'm a noob developer but I have changed to build with 4.0 but still have the same issue after rebuilding the client.wyc file.
I'm currently on the latest update released and have full controll over the VPS settings but I can't see how I edit the app or settings to allow for this TLS to work.
Any basic noob walkthrough to get it working?
my original app was MsAccess but I need to implement in C# too now but don't want to start and implement if I don't understand how to make it work correctly, 

Thanks for help and patience

https://ibb.co/GdPYb7s

I ahve attached a link to show the TLS running on the server.. my server guy says everything looks fine but i dont understand why it is failing when i can get it wokring on the old server.

ok seriously.. PLEASE CAN SOMEONE HELP WITH THIS.  I understand there is a github and if i make my own edits i can get it running.. but literally I can't do it and now this program is useless for me.

i really need this updater and have used for years but now im up sh*t creek and my apps are needing updating.

Has anyone got the file to share of the version that works that they have edited??

Thanks fr any help, if i cant get some help ill have to start using click once or whatever its call which isnt really the way I want to go.

Follow the link that explains how to fix this.

Hi Wyatt, 

Thanks for the response.

I do appreciate your time in responding however I write VBA, am self taught and literally have no idea about what this answer means on Stack overlfow.

I have downloaded the github and looking to edit the fildownloader.CS however the stack page has a few answers and everyone has commented saying those answers are wrong and to try other things etc.

I tried a few version of those answers but when i try to run wyupdate in visual studio I'm getting exceptions in PaneDisplay.cs which i havent even touched!

https://ibb.co/HNQYqDW

I don't want to have to change the registry of every PC that installs my app.. 

Hi Wyatt, so i found another post on one of these forum pages.
This has constructed a new wyupdate.exe file which I will now test.

So from here on i use this as the master file and ignore the one that is created with the wyupdate program?

ok that worked.

All due respect... why isnt this actually implemented in the build for the real program?