Can't open project while connected to the internet

Unity Engine
1

So, today out of nowhere I’m unable to open my projects normally. When opening new or old project, Unity just freezes. It’s only visible in processes (no window/splash screen visible), and I need to force close it from task manager.

If I open old project, it will open once, but freeze when closing. After the first failed closing, the project wont open anymore. New projects will start by freezing.

I figured out to try offline mode, because the Editor.log was saying:
Task failed: Downloader Task

But offline mode didn’t work.

I also tried to log in to my account and logout. No help.

Then I tried to disable firewall and Kaspersky AV, I also made sure nothing is blacklisted, but this didn’t help.

After that I tried to connect with my mobile network, but that didn’t help.

The solution was to disable my network adapters, thus blocking Unity to truly operate in offline mode and all my projects began to start and close normally.

At some point I also updated Unity 5.2.0f3 (64-bit) to Unity 5.2.3f1 (64-bit)

Platform: Windows 7 (64-bit)
Unity version: 5.2.3f1 (64-bit)

2

Okay, now when I’ve opened some of the projects while offline, I’m able to open the same projects while online. Tho. closing them makes unity crash still.

The projects that failed to open (and I didn’t open while offline) are still failing to boot up.

I noticed that after successfully opening project, the editor log has this line only once:
“Begin MonoManager ReloadAssembly”

and no:
“Reloading assemblies after forced synchronous recompile.”

That recompile is triggered by shader import?
“Shader import version has changed; will reimport all shaders…”
EDIT: Ohh, and this is dumped to the Editor.log when closing (fails):

Nothing special there?

3

Okay. Problem solved. It appears to be Kaspersky AV 2016 that messed up Unity suddenly. Uninstalled it and everything is fine now. Disabling it didn’t help at all, which is kinda odd…

The kaspersky AV has been annoying to me anyways as I’m doing web development and it keeps spamming the web dev console, so I’m probably going to get refund next. Also had a feeling that my internet has not been working as stable as it was before kaspersky. This I can’t confirm tho.

Sorry for the rant, but just my 5 cents if you are going to get kaspersky and do web development or use Unity. I even had just the basic AV w/o any fancy “Internet security” extras that I specifically selected to avoid any extra stuff to come between me and whatever I’m working on.