A newer version of Unity Web Player is required, but the auto-update download failed

My game is made on Unity5.3.4f1 and serviced on WebPlayer on Internet Explorer 11. also serviced on Android Phone.
but It had updating error on web player from yesterday.

I reinstalled Web Player manually several times. but it is same.

Error Message:
A newer version of Unity Web Player is required, but the auto-update download failed.
Was trying to download https://ssl-webplayer.unity3d.com//autodownload_webplugin-3.x/UnityPlayer3.x.x-win32.zip

Why is it happen to suddenly?
Many users cann't play game now. Please help me.

 

What browser? Most browsers don't support webplayer at all, which is why people are moving to webGL

 

The final update of the webplayer should be available here:
https://unity3d.com/webplayer

Modern browsers typically do not allow this kind of plugin anymore, which of course was the whole point of switching to WebGL.

 

I know that webplayer is only working on Internet explorer. so we are servicing the game on internet explorer.
but suddenly it is not working from a few days ago.
I didn't hear any news about it.
Is there any change recently?

 

I have also encountered the same issue. Why https://ssl-webplayer.unity3d.com//autodownload_webplugin-3.x/UnityPlayer3.x.x-win32.zip is 403 forbidden?
When I access to https://unity3d.com/webplayer_setup/setup-3x, an icon file from same host (http://webplayer.unity3d.com/installation/getunity.png) is also failed due to 403. Was there something change on webplayer.unity3d.com?

 

I'd be more suspicious of the security updates to Internet Explorer that Microsoft started rolling out in November than anything else (KB4524570 for example). Would be easy to test by setting up a computer with an older OS and browser version you know worked with your webplayer game at the time and seeing if you can get it to work. Then install the latest updates and see if it breaks.

If it works and then breaks, well you know it is browser change. If you can't get it to work on a known good browser version then maybe Unity is at fault. Unity isn't going to make any changes to the webplayer to fix this anymore though, other than possibly fixing a download page.

 

Thanks for your reply. @Joe-Censored
I am not using IE but Firefox 45.2.0 that supports Unity Web Player. I will try with the old OS.
Also I wonder if there is something problem on CDN or server side like this post (https://forum.unity.com/threads/unity-web-player-update-failed.612289/#post-4104874)
I am getting access forbidden error from https://ssl-webplayer.unity3d.com//autodownload_webplugin-3.x/UnityPlayer3.x.x-win32.zip
"Anonymous caller does not have storage.objects.get access to publishing-unity-binaries-prd/autodownload_webplugin-3.x/UnityPlayer3.x.x-win32.zip."

 

I tried it in Windows7 but see the same issue... Seeing the error message, I suspect acl of storage.objects.get. Is there anyone who can help to fix it?

 

I could find required files (UnityPlayer5.x.x-win32, etc) from my PC's cache. I deployed them to localhost on my PC and changed my local DNS (etc/hosts) so that webplayer.unity3d.com is pointed to my localhost. Then, this issue was resolved in my environment.
That's why the root cause is simply something changes on a repository server that webplayer.unity3d.com has used.

 

Would you please upload UnityPlayer3.x.x-win32.zip file here. or please email it contact@smartgames.co.kr

 

@RobinLim
I don't have v3 unity. I have been using the version 5.

You may find caches of unity libraries in your system. For windows system, C:\Users\<user name>\AppData\LocalLow\Unity\WebPlayer, and zip 2 directories, mono/Release-*.*.*.* and player/Release-*.*.*.* as Mono3.x.x-win32.zip and UnityPlayer3.x.x-win32.zip respectively.
In my case, I zipped
zip C:\Users\>my pc>\AppData\LocalLow\Unity\WebPlayer\mono\Release-5.35.x.x\* as Mono5.x.x-win32.zip
zip C:\Users\<my pc>\AppData\LocalLow\Unity\WebPlayer\player\Release-5.35.x.x\* as UnityPlayer5.x.x-win32.zip

 

@yznzgzwz
Thank you for your kindness.
I rechecked the error message

Error Message : A newer version of Unity Web Player is required, but auto-update download failed.
Was trying to download
http://webplayer.unity3d.com//autodownload_webplugin-3.x/UnityPlayer5.x.x-win32.zip

we need the version 5.

I checked the cache in my pc. but It is not same folders what you said.
would you please upload the two zip files.

But I have another problem.
How can I let users auto update these files.

 

@RobinLim
I sent download links in a private conversation.
Note that what I sent is for Release-5.05.x.x that may not be compatible with your unity app.
I also have Release-5.35.x.x. If it is needed, will send you.

> How can I let users auto update these files.

I have no idea than changing DNS on each client side. I am wondering if there is an option to disable update check but can not find it yet.
In my case, the client is not world wide but specific users so this workaround is fine to me.
If you have many users in world wide, we should wait for admin of Unity to fix the repository.

 

@RobinLim What prevents you from converting your game to WebGL?

The WebPlayer has been discontinued, as it relied on an old and insecure API (NPAPI) and major browser vendors have removed said API from their browsers years ago.

Using old software - like older web browser versions - always poses a security risk.

 

Thank you very much.
I downloaded these files.

I will keep in touch with Unity because we need to make sure that users are automatically updated.
If I have any other news, I will post it here.

 

Thank you for your opinion.
But Our game system is like MMORPG. So we have the tcp Server.
If we convert it WebGL, we have to change the server.
It's very difficult.

And we are servicing the game on Standalone PC Game and Android Phone too.
So Most users use the PC version.

 

Thanks very much. Please keep the old WebPlayer download file.