Server certificate am using windows vista laptop. When I open my windows mail I receive a message: The server you are connected to is using a security certificate that could not be verified. The certificate's CN name does not match the passed value. Do you want to continue using this server? How do I correct? I'm told this has to do with the D-Link model # DI-614. any suggestions?

This is from Microsoft:-

If you receive Server Error: 0x80048849 and/ or 0x80048820 in Windows Live Mail at home or while you're in your regular network, it may be due to the setting of the MTU (Maximum Transmission Unit) on the mail client.
If you get this synchronization error at a coffee shop, airport or a place from where you don't usually connect to the internet, we suggest synchronizing mail on your regular internet connection.
When the MTU setting on the mail client is larger than the MTU settings configured on network devices between your mail client and the mail client servers, some data packets may be lost, causing mail synchronization to fail.
Follow the steps given below to fix synchronization errors due to mismatched MTU settings:
Determine the MTU setting on your network device
Apply the MTU setting to your mail client
Determine the MTU setting on your network device
This is a trial and error process, and will be different for each user. You may have to repeat the procedure below a few times, before you can find out the MTU setting of your network device. Follow the steps below:
Open command prompt
Click Start ? Run ? Type cmd
In the Command Prompt Window, type in the following:
Ping <Mail server address> -f -l 1500
Notes:
The <Mail server address> is the IP address of the mail server that you are unable to synchronize with.
For Hotmail, 65.55.33.106 is the IP address for DeltaSync (mail.services.live.com).In this document we will be using this IP address as an example.
In the -l 1500, 1500 is the max MTU for Ethernet connections.
You may get an error like this (100% packet loss):
C:\Users\username>ping 65.55.33.106 -f -l 1500
Pinging 65.55.33.106 with 1500 bytes of data:
Packet needs to be fragmented but DF set.
Packet needs to be fragmented but DF set.
Packet needs to be fragmented but DF set.
Packet needs to be fragmented but DF set.
Ping statistics for 65.55.33.106:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss)
If you received the error above, subtract 28 from the 1500 bytes of data. In the Command Prompt Window, type in the following:
Ping <Mail server address> -f -l 1472
If you get a 0% Packet Loss with 1472, it means the MTU setting of your configured network is 1472
Note: If you continue to receive the error described in (b) above, repeat the above steps by subtracting 28 from 1472 bytes of data. Repeat these steps until you get a message for 0% packet loss. If you were able to communicate with the mail server at an MTU size of 1424, you will receive the following:
C:\Users\username>ping 65.55.33.106 -f -l 1424
Pinging 65.55.33.106 with 1424 bytes of data:
Reply from 65.55.33.106: bytes=1424 time=230ms TTL=241
Reply from 65.55.33.106: bytes=1424 time=196ms TTL=241
Reply from 65.55.33.106: bytes=1424 time=162ms TTL=241
Reply from 65.55.33.106: bytes=1424 time=163ms TTL=241
Ping statistics for 65.55.33.106:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss)
Approximate round trip times in milli-seconds:
Minimum = 162ms, Maximum = 230ms, Average = 187ms
Apply the MTU setting to your mail client
Follow the steps below:
Open command prompt as administrator (you must be an admin on the computer)
Click Start ? Run ? Type cmd
In the Command Prompt Window, type in the following:
netsh int ip show int
You will receive a message similar to the following. Find the connection name that you use to connect to the internet and note the Idx value
C:\Users\Username>netsh int ip show int
Idx Met MTU State Name
--- ---------- ---------- ------------ ---------------------------
1 50 1472 connected Loopback Pseudo-Interface 1
11 20 1472 connected Local Area Connection
To apply the correct MTU setting on your mail client, type the following in command prompt:
netsh int ip set interface <Idx value> mtu= <MTU setting of your router> store=persistent
Press Enter
For example, if the correct MTU setting was 1424 and Idx value of your connection was 11, you will type:
netsh int ip set interface 11 mtu=1424 store=persistent
If (c ) was successful, you will receive the confirmation message "Ok"
Exit command prompt
Restart your computer
Open WL Mail and see if the issue persists.
have Windows Vista Home Premium Recently unable to send or recieve Window...

The setup for your server connections is wrong.

"Error 766: A certificate could not be found. Connections that use the L2TP protocol over IPSec require the installation of a machine certificate, also known as a computer certificate."

"Error 766: The L2TP connection attempt failed because the security layer could not authenticate the remote computer."

Cause: Connections that use the L2TP protocol over IPSec require the installation of a machine certificate, also known as a computer certificate. You will see this error message when such a certificate is not available.

Typically, this error is generated on a remote access server that has active L2TP ports configured, the remote access service started but there is no certificate in the computer certificate store. This generates an event log message that tells the administrator that L2TP ports will not be able to accept calls until a certificate is acquired and RRAS is restarted.
Resolutions: 1. If you use PPTP VPN, select Automatic in Type of VPN.
2. If you use L2TP, check the remote access server and make sure there is certificate in the computer certificate store.

This is basically an Internet Explorer 7 Website’s Security Certificate problem! You have to self-sign the certificate on the client computer or add the URL manually to the trusted security zone. When you are trying to access a secure web page, you receive the warning message:

"There is a problem with this website's security certificate. The security certificate presented by this website was not issued by a trusted certificate authority."

Or

"Security certificate problems may indicate an attempt to fool you or intercept data you send to the server."

To fix this issue, you can follow either of the methods:





Method 1:

You have to install the Microsoft Windows Small Business Server 2003 (Windows SBS) self-signed certificate on the client computer. To do this, follow these steps:

• In Windows Internet Explorer 7, click Continue to this website (not recommended).

A red Address Bar and a certificate warning appear.

• Click Certificate Error button to open the information window.

• Click View Certificates > click Install Certificate.

• Click Yes, to install the certificate, when warning message appear.

Note: For Windows Vista users, right click on Internet Explorer icon. Select Run as Administrator.


Back to top


Method 2:

Add the URL to the Trusted Sites security zone:

• Open Internet Explorer

• Go to Menu bar > Tools > Internet Options.
  
  
  

• Click Security > Trusted sites > Sites
  
  
  

• Type the URL in the Add this website to the zone text box > uncheck Require server verification >Add > click OK
  
  
  

• Click OK to exit.
  
  
  
  

Now you have added the URL successfully into the Trusted Sites security zone.

If you can successfully receive e?mail messages, but can't send messages, then Windows Mail is having problems connecting to the outgoing e?mail server that's used to send messages. These are likely possibilities:

• If you've never been able to send e?mail successfully using Windows Mail, your e?mail account is probably not set up properly. First, follow the steps to verify your e?mail account information in the "I can't receive e?mail" section of this help topic. If you verify that your e?mail account information is entered properly, you might need to change your authentication settings so that when sending mail, you sign in using your e?mail user name and password. Check with your e?mail provider to see if it requires authentication for sending e?mail.
  To use authentication when sending e?mail
  1. Open Windows Mail by clicking the Start button , clicking All Programs, and then clicking Windows Mail.
     
  2. Click the Tools menu, and then click Accounts.
     
  3. Under Mail, click your e?mail account, and then click Properties.
     
  4. Click the Servers tab, and then, under Outgoing Mail Server, select the My server requires authentication check box.
     
  5. If the account information that you use to send e?mail is not the same information that you use to receive messages, click Settings, click Log on using, and then enter the user name and password that you use to send e?mail.
     
• Many Internet service providers (ISPs) require you to be directly connected to their network to use their outgoing e?mail servers. If you're using a mobile PC and connect to the Internet using a different ISP (such as when using a wireless connection in a hotel), you might be able to receive, but not send, e?mail. Some ISPs will allow you to send e?mail when connected to a different provider if you use authentication when sending. Follow the previous steps to use authentication when sending e?mail. If your ISP doesn't allow this, you'll need to find out the name of the outgoing mail server for the ISP you're currently using, and then change the settings in Windows Mail to use it.
  To change the outgoing mail server settings
  1. Open Windows Mail by clicking the Start button , clicking All Programs, and then clicking Windows Mail.
     
  2. Click the Tools menu, and then click Accounts.
     
  3. Under Mail, click your e?mail account, and then click Properties.
     
  4. Click the Servers tab, and then enter the new mail server in the Outgoing Mail (SMTP) box.
     
  5. If the new outgoing mail server requires authentication, under Outgoing Mail Server, select the My server requires authentication check box.
     
  6. Click Settings, click Log on using, and then enter the user name and password for the outgoing mail server.
     

hello, this is the problem with the SSL security certificate.. to solve this problem in firefox ... first when this error is displayed there wil be a link that says " add this certificate " , click that link and add the certificate to ur browser.. the problem will be solved ... or else go to internet options in ur browser and check for certificate settings .then download the certificate from google with the option given there....

Hello,

you can view this link, to get a better solution:


http://www.google.com/support/talkgadget/bin/topic.py?topic=15386


thank you,

is this he first time that you received that problem/error?
some sites have security/authorization/ certification before you can sign in..
***This error occurs when the client does not know about the certificate authority that issued the server certificate. The problem may be corrected by installing the certificate authority's root certificate. A list of all installed certificates can be viewed from Internet Explorer. From the View menu, click Internet Options, click the Content tab, and click Authorities.

>> for more info go to support.microsoft.com

Verify the setting via Manage accounts on your XP machine (the one the email client works on) in whatever email client you use on it and verify and edit if need be the setting in your Windows Live Mail on your Vista home Laptop.