What is schannel in Event Viewer?

This topic for IT professionals lists the event details for the Secure Channel (Schannel) security support provider, and it describes the actions available to you to resolve problems. To configure event logging for this provider, see How to enable Schannel event logging.

What is Windows schannel error?

Schannel is primarily used for Internet applications that require secure Hypertext Transfer Protocol (HTTP) communication. These errors indicate a problem with the cipher suite chosen, or just the fact that the two sides (client and server) cannot agree on a cipher suite to use.

What is schannel Fatal Alert 40?

This can happen when you are accessing the specific website but your browser is not configured to accept RC4 ciphers. The Internet Explorer can be blocking the advertising of any RC4 ciphers from the registry. You need to disable the policy of FIPS Complaint Algorithms to make it work.

How do I enable Schannel logging?

This registry key is present already in Windows and Windows Server.

1. Start Registry Editor.
2. Locate the following key in the registry:
3. Double-click the EventLogging key or right-click it and select Modify.
4. Exit Registry Editor.
5. Reboot the machine (Logging does not take effect until after you restart the computer).

What is schannel DLL?

Simply put, Schannel. dll is a library that is the main Microsoft TLS/SSL Security Provider. It stands for Secure Channel and is used by Microsoft Web Servers, including Windows Server 2003, Windows Server 2008, Windows 7, Windows Server 2008 R2 and others, including older ones like Windows XP and Windows NT even.

Is TLS 1.2 Enabled by default?

TLS 1.2 is enabled by default. Therefore, no change to these keys is needed to enable it. You can make changes under Protocols to disable TLS 1.0 and TLS 1.1 after you’ve followed the rest of the guidance in these articles and you’ve verified that the environment works when only TLS 1.2 enabled.

How do I disable Windows cipher?

Disable RC4/DES/3DES cipher suites in Windows using registry, GPO, or local security settings.

1. You can do this using GPO or Local security policy under Computer configuration -> Administrative Templates -> Network -> SSL Configuration Settings -> SSL Cipher Suite Order.
2. Set this policy to enable.

How do I resolve event ID 36871?

The solution to this problem is configuring TLS 1.2 on the Windows Server. After that, you don’t see the Event ID 36871 errors in Event Viewer.

How do I find TLS settings in Windows 7?

1. Click on: Start -> Control Panel -> Internet Options 2. Click on the Advanced tab 3. Scroll to the bottom and check the TLS version described in steps 3 and 4: 4.

Where are TLS settings in Windows 7?

Edit the Registry settings

1. Click on the Windows button and then choose Run.
2. Enter “regedit” in the field as shown above and click OK.
3. HKEY_LOCAL_MACHINE > SYSTEM > CurrentControlSet > Control > SecurityProviders > SCHANNEL > Protocols.
4. Right-click on “Protocols” and choose the option New followed by Key as shown below.

Where are ciphers in the registry?

This cipher suite’s registry keys are located here: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Ciphers\

What ciphers should be disabled?

In general you should avoid:

• SSL protocol version v2, v3 and PCT v1.
• Symmetric ciphers with keys shorter than 128bit (also known as export ciphers)
• Weak ciphers – like RC2, RC4.
• Weak hash functions – like MD5.

How do I enable schannel?

To do this, click Start, click Run, type regedit , and then click OK. Double-click the EventLogging key or right-click it and select Modify. Exit Registry Editor. Reboot the machine (Logging does not take effect until after you restart the computer).