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Windows 7: Event ID: 36887 Schannel -- The following fatal alert was received: 40

07 Jan 2018   #1
Ghot

Windows 7 Home Premium x64 SP1
 
 
Event ID: 36887 Schannel -- The following fatal alert was received: 40

Just recently I've started to get schannel errors in Event log. Win 7 Home Premium x64

Event ID: 36887 Schannel. They come in two flavors...

The following fatal alert was received: 40.
The following fatal alert was received: 70.
The following fatal alert was received: 70.

They seem to come in groups of 3. One 40 and 2x 70's.

I've Googled a lot about this. But to be honest, it doesn't make much sense to me. Some thing to do with certificates.

Firefox 57.0.4 and previously on Firefox 57.0.3. I didn't notice these errors before the two latest versions of Firefox. Also about the same time, Windows Update (Security Only) KB 4056897... Manual install.
As for IE, I have it UNchecked in "Turn Windows Features On and Off. <---- This has been turned off since Oct 2012

I'm only running the NoScript addon, in Firefox.


Other than the Windows Update and/or the Firefox versions, nothing has changed on my comp.


My System SpecsSystem Spec
.
08 Jan 2018   #2
mrjimphelps

Linux Mint 18.2 xfce 64-bit (VMWare host) / Windows 8.1 Pro 32-bit (VMWare guest)
 
 

Try going back to your previous version of Firefox: First, tell Firefox not to check for updates; then download the previous version of Firefox, and save it to your hard drive; then uninstall the current version of Firefox; then install the previous version of Firefox.

After doing the above, do you still get these errors?
My System SpecsSystem Spec
08 Jan 2018   #3
Ghot

Windows 7 Home Premium x64 SP1
 
 

Already tried that with Firefox.

More info...

It seems to only happen when I log into the Tumblr website. Doesn't happen on other sites.
From Googling it seems to be a problem with certificates. Like, Tumblr doesn't like my Windows certificates, or visa versa.
My System SpecsSystem Spec
.

09 Jan 2018   #4
mrjimphelps

Linux Mint 18.2 xfce 64-bit (VMWare host) / Windows 8.1 Pro 32-bit (VMWare guest)
 
 

NoScript could be blocking an essential script on the Tumblr website.

Try a different browser, such as Opera. Opera is my go-to browser when FF with NoScript doesn't work.
My System SpecsSystem Spec
09 Jan 2018   #5
Ghot

Windows 7 Home Premium x64 SP1
 
 

Ok, I finally found the issue. It was an older version of Piriform CCleaner v5.06

When I was done on Tumblr, I would usually run CCleaner, as Tumblr leaves a lot of stuff on your comp. More than some other websites.

Anyways, I manually downloaded CCleaner 5.38, uninstalled 5.06, installed 5.38. Problem is now gone.
My System SpecsSystem Spec
27 Apr 2018   #6
ineuw

Microsoft Windows 10 Pro 64-bit
 
 

Event ID: 36887 Schannel is triggered by websites where the URL was upgraded to https but the locally stored link is still http. I have numerous old bookmarks to forums that have upgraded, but my bookmarks are still http. Some trigger the event 36887, but the majority don't.
My System SpecsSystem Spec
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 Event ID: 36887 Schannel -- The following fatal alert was received: 40




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