所以我打开了一些大约2个月没有动过的代码。
上次我打开应用程序时，所有单元测试都通过了。现在没有代码更改，我的所有数据单元测试都失败并出现以下错误：
初始化方法 PerTrac.Pictor.Data.Test.RequestLogRepositoryShould.CreateLog 抛出异常。System.Data.EntityException：System.Data.EntityException：基础提供程序在打开时失败。---> System.Data.SqlClient.SqlException: 与服务器建立连接成功，但在登录前握手过程中发生错误。（提供者：SSL 提供者，错误：0 - 等待操作超时。）---> System.ComponentModel.Win32Exception：等待操作超时。
我意识到存在与此类似的问题，但这些解决方案对我的情况没有任何影响。
有没有人特别遇到过实体框架和 SQL Azure 的这个错误？
我应该注意，我可以使用相同的凭据毫无问题地从 SSMS 连接。我没有在禁用协议上设置强制加密，并且我已经多次重置本地 IIS。
很可能您的计算机上安装了一些应用程序，该应用程序使用已弃用的网络协议来拦截网络流量。正确的解决方案是禁用或卸载这些应用程序。
运行命令行命令netsh WinSock Show Catalog >> winsock.txt然后记事本winsock.txt打开文件。
查看返回的每个Winsock 目录提供程序条目。如果服务标志值设置了 0x20000 位，则提供程序使用 IFS 句柄并且可以正常工作。如果“服务标志”0x20000 位被清除（未设置），则它是非 IFS BSP 或 LSP，可能是一个问题。尝试禁用此应用程序并让我们知道它是否有效。
查看文本文件结果时，请忽略“名称空间提供者条目”。他们不是问题。
下面是 netsh WinSock Show Catalog 文件输出的干净系统的样例。
Winsock Catalog Provider Entry
------------------------------------------------------
Entry Type: Base Service Provider
Description: MSAFD Tcpip [TCP/IP]
Provider ID: {E70F1AA0-AB8B-11CF-8CA3-00805F48A192}
Provider Path: %SystemRoot%\system32\mswsock.dll
Catalog Entry ID: 1001
Version: 2
Address Family: 2
Max Address Length: 16
Min Address Length: 16
Socket Type: 1
Protocol: 6
Service Flags: 0x20066
Protocol Chain Length: 1
Winsock Catalog Provider Entry
------------------------------------------------------
Entry Type: Base Service Provider
Description: MSAFD Tcpip [UDP/IP]
Provider ID: {E70F1AA0-AB8B-11CF-8CA3-00805F48A192}
Provider Path: %SystemRoot%\system32\mswsock.dll
Catalog Entry ID: 1002
Version: 2
Address Family: 2
Max Address Length: 16
Min Address Length: 16
Socket Type: 2
Protocol: 17
Service Flags: 0x20609
Protocol Chain Length: 1
Winsock Catalog Provider Entry
------------------------------------------------------
Entry Type: Base Service Provider
Description: MSAFD Tcpip [RAW/IP]
Provider ID: {E70F1AA0-AB8B-11CF-8CA3-00805F48A192}
Provider Path: %SystemRoot%\system32\mswsock.dll
Catalog Entry ID: 1003
Version: 2
Address Family: 2
Max Address Length: 16
Min Address Length: 16
Socket Type: 3
Protocol: 0
Service Flags: 0x20609
Protocol Chain Length: 1
Winsock Catalog Provider Entry
------------------------------------------------------
Entry Type: Base Service Provider
Description: MSAFD Tcpip [TCP/IPv6]
Provider ID: {F9EAB0C0-26D4-11D0-BBBF-00AA006C34E4}
Provider Path: %SystemRoot%\system32\mswsock.dll
Catalog Entry ID: 1004
Version: 2
Address Family: 23
Max Address Length: 28
Min Address Length: 28
Socket Type: 1
Protocol: 6
Service Flags: 0x20066
Protocol Chain Length: 1
Winsock Catalog Provider Entry
------------------------------------------------------
Entry Type: Base Service Provider
Description: MSAFD Tcpip [UDP/IPv6]
Provider ID: {F9EAB0C0-26D4-11D0-BBBF-00AA006C34E4}
Provider Path: %SystemRoot%\system32\mswsock.dll
Catalog Entry ID: 1005
Version: 2
Address Family: 23
Max Address Length: 28
Min Address Length: 28
Socket Type: 2
Protocol: 17
Service Flags: 0x20609
Protocol Chain Length: 1
Winsock Catalog Provider Entry
------------------------------------------------------
Entry Type: Base Service Provider
Description: MSAFD Tcpip [RAW/IPv6]
Provider ID: {F9EAB0C0-26D4-11D0-BBBF-00AA006C34E4}
Provider Path: %SystemRoot%\system32\mswsock.dll
Catalog Entry ID: 1006
Version: 2
Address Family: 23
Max Address Length: 28
Min Address Length: 28
Socket Type: 3
Protocol: 0
Service Flags: 0x20609
Protocol Chain Length: 1
Winsock Catalog Provider Entry
------------------------------------------------------
Entry Type: Base Service Provider
Description: RSVP TCPv6 Service Provider
Provider ID: {9D60A9E0-337A-11D0-BD88-0000C082E69A}
Provider Path: %SystemRoot%\system32\mswsock.dll
Catalog Entry ID: 1007
Version: 2
Address Family: 23
Max Address Length: 28
Min Address Length: 28
Socket Type: 1
Protocol: 6
Service Flags: 0x22066
Protocol Chain Length: 1
Winsock Catalog Provider Entry
------------------------------------------------------
Entry Type: Base Service Provider
Description: RSVP TCP Service Provider
Provider ID: {9D60A9E0-337A-11D0-BD88-0000C082E69A}
Provider Path: %SystemRoot%\system32\mswsock.dll
Catalog Entry ID: 1008
Version: 2
Address Family: 2
Max Address Length: 16
Min Address Length: 16
Socket Type: 1
Protocol: 6
Service Flags: 0x22066
Protocol Chain Length: 1
Winsock Catalog Provider Entry
------------------------------------------------------
Entry Type: Base Service Provider
Description: RSVP UDPv6 Service Provider
Provider ID: {9D60A9E0-337A-11D0-BD88-0000C082E69A}
Provider Path: %SystemRoot%\system32\mswsock.dll
Catalog Entry ID: 1009
Version: 2
Address Family: 23
Max Address Length: 28
Min Address Length: 28
Socket Type: 2
Protocol: 17
Service Flags: 0x22609
Protocol Chain Length: 1
Winsock Catalog Provider Entry
------------------------------------------------------
Entry Type: Base Service Provider
Description: RSVP UDP Service Provider
Provider ID: {9D60A9E0-337A-11D0-BD88-0000C082E69A}
Provider Path: %SystemRoot%\system32\mswsock.dll
Catalog Entry ID: 1010
Version: 2
Address Family: 2
Max Address Length: 16
Min Address Length: 16
Socket Type: 2
Protocol: 17
Service Flags: 0x22609
Protocol Chain Length: 1
Winsock Catalog Provider Entry
------------------------------------------------------
Entry Type: Base Service Provider (32)
Description: MSAFD Tcpip [TCP/IP]
Provider ID: {E70F1AA0-AB8B-11CF-8CA3-00805F48A192}
Provider Path: %SystemRoot%\system32\mswsock.dll
Catalog Entry ID: 1001
Version: 2
Address Family: 2
Max Address Length: 16
Min Address Length: 16
Socket Type: 1
Protocol: 6
Service Flags: 0x20066
Protocol Chain Length: 1
Winsock Catalog Provider Entry
------------------------------------------------------
Entry Type: Base Service Provider (32)
Description: MSAFD Tcpip [UDP/IP]
Provider ID: {E70F1AA0-AB8B-11CF-8CA3-00805F48A192}
Provider Path: %SystemRoot%\system32\mswsock.dll
Catalog Entry ID: 1002
Version: 2
Address Family: 2
Max Address Length: 16
Min Address Length: 16
Socket Type: 2
Protocol: 17
Service Flags: 0x20609
Protocol Chain Length: 1
Winsock Catalog Provider Entry
------------------------------------------------------
Entry Type: Base Service Provider (32)
Description: MSAFD Tcpip [RAW/IP]
Provider ID: {E70F1AA0-AB8B-11CF-8CA3-00805F48A192}
Provider Path: %SystemRoot%\system32\mswsock.dll
Catalog Entry ID: 1003
Version: 2
Address Family: 2
Max Address Length: 16
Min Address Length: 16
Socket Type: 3
Protocol: 0
Service Flags: 0x20609
Protocol Chain Length: 1
Winsock Catalog Provider Entry
------------------------------------------------------
Entry Type: Base Service Provider (32)
Description: MSAFD Tcpip [TCP/IPv6]
Provider ID: {F9EAB0C0-26D4-11D0-BBBF-00AA006C34E4}
Provider Path: %SystemRoot%\system32\mswsock.dll
Catalog Entry ID: 1004
Version: 2
Address Family: 23
Max Address Length: 28
Min Address Length: 28
Socket Type: 1
Protocol: 6
Service Flags: 0x20066
Protocol Chain Length: 1
Winsock Catalog Provider Entry
------------------------------------------------------
Entry Type: Base Service Provider (32)
Description: MSAFD Tcpip [UDP/IPv6]
Provider ID: {F9EAB0C0-26D4-11D0-BBBF-00AA006C34E4}
Provider Path: %SystemRoot%\system32\mswsock.dll
Catalog Entry ID: 1005
Version: 2
Address Family: 23
Max Address Length: 28
Min Address Length: 28
Socket Type: 2
Protocol: 17
Service Flags: 0x20609
Protocol Chain Length: 1
Winsock Catalog Provider Entry
------------------------------------------------------
Entry Type: Base Service Provider (32)
Description: MSAFD Tcpip [RAW/IPv6]
Provider ID: {F9EAB0C0-26D4-11D0-BBBF-00AA006C34E4}
Provider Path: %SystemRoot%\system32\mswsock.dll
Catalog Entry ID: 1006
Version: 2
Address Family: 23
Max Address Length: 28
Min Address Length: 28
Socket Type: 3
Protocol: 0
Service Flags: 0x20609
Protocol Chain Length: 1
Winsock Catalog Provider Entry
------------------------------------------------------
Entry Type: Base Service Provider (32)
Description: RSVP TCPv6 Service Provider
Provider ID: {9D60A9E0-337A-11D0-BD88-0000C082E69A}
Provider Path: %SystemRoot%\system32\mswsock.dll
Catalog Entry ID: 1007
Version: 2
Address Family: 23
Max Address Length: 28
Min Address Length: 28
Socket Type: 1
Protocol: 6
Service Flags: 0x22066
Protocol Chain Length: 1
Winsock Catalog Provider Entry
------------------------------------------------------
Entry Type: Base Service Provider (32)
Description: RSVP TCP Service Provider
Provider ID: {9D60A9E0-337A-11D0-BD88-0000C082E69A}
Provider Path: %SystemRoot%\system32\mswsock.dll
Catalog Entry ID: 1008
Version: 2
Address Family: 2
Max Address Length: 16
Min Address Length: 16
Socket Type: 1
Protocol: 6
Service Flags: 0x22066
Protocol Chain Length: 1
Winsock Catalog Provider Entry
------------------------------------------------------
Entry Type: Base Service Provider (32)
Description: RSVP UDPv6 Service Provider
Provider ID: {9D60A9E0-337A-11D0-BD88-0000C082E69A}
Provider Path: %SystemRoot%\system32\mswsock.dll
Catalog Entry ID: 1009
Version: 2
Address Family: 23
Max Address Length: 28
Min Address Length: 28
Socket Type: 2
Protocol: 17
Service Flags: 0x22609
Protocol Chain Length: 1
Winsock Catalog Provider Entry
------------------------------------------------------
Entry Type: Base Service Provider (32)
Description: RSVP UDP Service Provider
Provider ID: {9D60A9E0-337A-11D0-BD88-0000C082E69A}
Provider Path: %SystemRoot%\system32\mswsock.dll
Catalog Entry ID: 1010
Version: 2
Address Family: 2
Max Address Length: 16
Min Address Length: 16
Socket Type: 2
Protocol: 17
Service Flags: 0x22609
Protocol Chain Length: 1
Name Space Provider Entry
------------------------------------------------------
Description: Network Location Awareness Legacy (NLAv1) Namespace
Provider ID: {6642243A-3BA8-4AA6-BAA5-2E0BD71FDD83}
Name Space: 15
Active: 1
Version: 0
Name Space Provider Entry
------------------------------------------------------
Description: E-mail Naming Shim Provider
Provider ID: {964ACBA2-B2BC-40EB-8C6A-A6DB40161CAE}
Name Space: 37
Active: 1
Version: 0
Name Space Provider Entry
------------------------------------------------------
Description: PNRP Cloud Namespace Provider
Provider ID: {03FE89CE-766D-4976-B9C1-BB9BC42C7B4D}
Name Space: 39
Active: 1
Version: 0
Name Space Provider Entry
------------------------------------------------------
Description: PNRP Name Namespace Provider
Provider ID: {03FE89CD-766D-4976-B9C1-BB9BC42C7B4D}
Name Space: 38
Active: 1
Version: 0
Name Space Provider Entry
------------------------------------------------------
Description: Tcpip
Provider ID: {22059D40-7E9E-11CF-AE5A-00AA00A7112B}
Name Space: 12
Active: 1
Version: 0
Name Space Provider Entry
------------------------------------------------------
Description: NTDS
Provider ID: {3B2637EE-E580-11CF-A555-00C04FD8D4AC}
Name Space: 32
Active: 1
Version: 0
Name Space Provider Entry
------------------------------------------------------
Description: WindowsLive NSP
Provider ID: {4177DDE9-6028-479E-B7B7-03591A63FF3A}
Name Space: 12
Active: 1
Version: 1
Name Space Provider Entry
------------------------------------------------------
Description: WindowsLive Local NSP
Provider ID: {229F2A2C-5F18-4A06-8F89-3A372170624D}
Name Space: 19
Active: 1
Version: 1
Name Space Provider Entry (32)
------------------------------------------------------
Description: Network Location Awareness Legacy (NLAv1) Namespace
Provider ID: {6642243A-3BA8-4AA6-BAA5-2E0BD71FDD83}
Name Space: 15
Active: 1
Version: 0
Name Space Provider Entry (32)
------------------------------------------------------
Description: E-mail Naming Shim Provider
Provider ID: {964ACBA2-B2BC-40EB-8C6A-A6DB40161CAE}
Name Space: 37
Active: 1
Version: 0
Name Space Provider Entry (32)
------------------------------------------------------
Description: PNRP Cloud Namespace Provider
Provider ID: {03FE89CE-766D-4976-B9C1-BB9BC42C7B4D}
Name Space: 39
Active: 1
Version: 0
Name Space Provider Entry (32)
------------------------------------------------------
Description: PNRP Name Namespace Provider
Provider ID: {03FE89CD-766D-4976-B9C1-BB9BC42C7B4D}
Name Space: 38
Active: 1
Version: 0
Name Space Provider Entry (32)
------------------------------------------------------
Description: Tcpip
Provider ID: {22059D40-7E9E-11CF-AE5A-00AA00A7112B}
Name Space: 12
Active: 1
Version: 0
Name Space Provider Entry (32)
------------------------------------------------------
Description: NTDS
Provider ID: {3B2637EE-E580-11CF-A555-00C04FD8D4AC}
Name Space: 32
Active: 1
Version: 0
Name Space Provider Entry (32)
------------------------------------------------------
Description: WindowsLive NSP
Provider ID: {4177DDE9-6028-479E-B7B7-03591A63FF3A}
Name Space: 12
Active: 1
Version: 1
Name Space Provider Entry (32)
------------------------------------------------------
Description: WindowsLive Local NSP
Provider ID: {229F2A2C-5F18-4A06-8F89-3A372170624D}
Name Space: 19
Active: 1
Version: 1
The key to understand the problem here is the provider and in your case it is "SSL Provider" and the main problem is that connection time out. If problem was related with "TCP Provider" there could be several reasons related with network etc however in your case it is a security related issue within the connection framework.
Next step to investigate this problem is that on the same machine, you can connect from SSMS to same SQL Database however not from IIS which means the IIS application process is not able to get proper certificate to create the SSL tunnel to create the successful connection. It is possible that you have some log written System Event log so please check there.
Because you are using Entity Framework and depend on EF version there are some changed in the connection string so verify if that is what you have:
<add name="MyDatabaseModelEntities" connectionString="metadata=res://*/MyDBModel.csdl|res://*/MyDatabaseModel.ssdl|res://*/MyDatabaseModel.msl;provider=System.Data.SqlClient;provider connection string="data source=abcdefg123.database.windows.net;initial catalog=MyDatabase;persist security info=True;user id=MyDatabaseUser@abcdefg123;password=p@$$w0rd;multipleactiveresultsets=True;Trusted_Connection=False;Encrypt=True;App=EntityFramework"" providerName="System.Data.EntityClient" />
Finally if you are using EF 4.3.1 and connecting to SQL Database please have a look at this article and check if you have similar configuration.
另一个提示：SQL 服务器可能内存不足。我遇到了这个错误，当我检查 SQL 服务器计算机时，SQL 服务使用了 15G 内存，总共 16 个。所以重启服务来修复。
就我而言，在尝试修复我的 VS2012RC 几次但没有运气后，我偶然发现了这个链接，其中一条评论与名为“sendori”的第三方软件有关。我卸载了它，我的世界一切都恢复了正常。
我在 SSMS 2012 上遇到了同样的问题，但在 SSMS 2008 上连接到同一个远程服务器的同一个盒子上都可以正常工作。
Moca.io 代理给我带来了麻烦。已卸载，现在一切正常。（“删除非 IFS LSP”）
问题最终成为vs11 beta。
如果您遇到此问题，您需要执行以下操作：
1) 卸载 vs11 beta 和 .NET 4.5 beta
2）重新安装.NET 4.0
再次观看一切正常！
有同样的问题。就我而言，卸载 T-Mobile Web 'n Walk Manager 解决了问题。它的软件通过 sim 卡 Josip 建立移动连接到互联网
如果您使用点“。” 或部分服务器名称（不带域名）作为数据源，请尝试使用实际的 SQL Server 实例名称和完整的服务器名称。
我有这个确切的错误。通过将服务器设置为不是 XXXXXXXXX 而是设置为完整的域名 XXXXXXXXX.YYY.com 来解决
然后出现一条消息说不支持加密连接没有。
当我做一切工作。