error 40 connection to SQL server

Server Error in '/' Application.
A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL server is configured to allow remote connections. (provider: Named pipes Provider, error: 40 - Could not open a connection to SQL server).

Description:
An unhandled exception occurred during  the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details:
System.Data.SqlClient.SqlException

Source Error:
An unhandled exception was generated during the execution of the current web request.  Information regarding the origin and location of the exception can be identified using the exception trace below.

Stack Trace:
[SqlException (0x80131904): A network-related or instance-specific error occurred while establishing a connection to SQL server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections].
System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owning Object) +428
System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +65
System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +117
System.Data.SqlClient.SqlConnection.Open() +122
GetIt.Enterprise.DataServices.SqlService.ExecuteNonQuery(String connectionString, CommandType commandType,String commandText, SqlParameter[] commandParameters) +109
GetIt.Web.Catalog.CatalogHelper.IsCatalogExists(String permalink) +264
GetIt.Web.SupportLayer.URLHandler.RedirectKnownPath(HttpApplication oApp, String strRequestUrl) +5914
GetIt.Web.SupportLayer.URLHandler.UrlHandlerBeginRequest(Object sender, EventArgs e) +892
System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +68
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +75

Version Information:
Microsoft.Net Framework; Version: 2.0.50727.3053; ASP.NET.

Connection error Google talk network

While the system start up and automatically try to sign in / connecting to the google talk network , an error message displayed as,
Connection error
Connecting to google talk network has failed due to an expired authentication certificate.The common cause of this expired certificate is due to time differences between your computer and the google talk network.Please verify your computer's clock settings are correct and then press retry.

Solution :
Correct the system's clock settings according to the region and then try again.For detailed solution refer
http://www.google.com/support/talk/bin/answer.py?answer=33612.
Proof :

Address not valid

When i logged in to my e-mail account and at the time of loading the mail,an error was displayed with message as

"Address not valid"

"This is taking longer than usual.Try reloading the page."

Solution :

It is recommended to check the internet connection speed,because there may be a possibility for such an error to occur if the internet connection is very poor.For slow connection users it is recommended to view the page through basic html view.

Errors And Solutions : Windows Remote Access

I found an error message from event viewer as
"Cold = {C55C88BF-1D28-494E-85CD-1F2548C5C0EC}:Layer=PPP:SubLayer=LCP: The connection attempt failed on port:COM16 because of the authentication protocol selected.Check to see if the authentication protocol is supported in the operating systems at the client and server ends of the connection".
Log name=system
Source : remote access
event id = 20276
level : error

This is the error,which is about connecting to remote computer and authentication protocols supported at each ends of the connection.Below is the proof and solution for this error.

solution :
Refer about RAS connection from the microsoft event log online help (http://technet.microsoft.com/en-us/library/cc733688(WS.10).aspx).

It is also recommended to refer more about remote desktop services from http://technet.microsoft.com/en-us/library/ee891257(WS.10).aspx.


Recommended :
WinRM event windows 7

Device Status : ADSL is Down

ADSL ROUTER
DEVICE STATUS
Your ADSL is down,please check your ADSL line is plugged correctly!

The above error occurs if we wrongly connect the wires between modem, phone and wall socket. Below is the proof  for such type of error. Here i used binatone modem.This may also happen if there is a broken cables.

Airtel Internet Activation Error 5006

Your internet activation process got interrupted.
Modem (MAC id)

Device details not found.Please restart the modem and after two minutes launch web based activation flow again.Error code : 5006

The above error occured while try to activate the airtel broadband connection.Below is the proof for this error,

 Solution:
I think the above error is because of incorrect modem mac address.TO SOLVE THIS WE HAVE TO KNOW THE INFORMATION ABOUT HOW TO GET THE MODEM MAC ID.And we have to choose the relevant mac id for the modem.

Error 718 connecting to broadband connection

Error 718 : The connection was terminated because the remote computer did not respond in a timely manner.
I obtained the above error while i try to connecting internet by broadband connection.The error occured at the time when username and password is verifying.Below is the proof for this  Broadband connecting error.

I think this is because of timeout connection.Solution is just try one more time to connect the net.

705 : Connection Response Timeout

705 : Connection response timeout
*Main menu
Reply

The above error occur while try to recharge with airtel vouchar.
See Also :
web page browser request and server timedout :
Request timeout
The server timedout while waiting for the browser's request.
Reference #2.56f9a57a.1313411508.0

Connection refused yahoo error

Connection refused
I obtained the above error when i try to sign in to yahoo mail account.Here is the proof for this error.

Uh-Oh error!
The error,LaunchFFC-1,occured when trying to connect to yahoo mail.

To retry yahoo mail...
This error might be temporary.