Cannot send/receive e-mails Print
You do not need to configure anything on the D-Link router for your e-mail to work properly. If you have access to the Internet you should be able to send/receive e-mails. Verify the following steps if you lost the ability to send or receive e-mail after installing a D-Link router:

  • Verify your E-mail client settings

    Step 1. Make sure you do not have any firewall/antivirus software running on the computer. Disable the firewall/antivirus software temporarilty to see if it fixes the problem.

    Step 2. Contact your e-mail provider (i.e. Internet Provider) and verify your incoming (POP) and outgoing (SMTP) mail servers. This information is normally available on the Provider's support website. The Provider should be able to assist in the configuration of the e-mail client.

    Step 3. If using Outlook: Go to Tools > Accounts > Mail. Highlight your email account and click Properties. Click the Server's tab. Get the name of the SNMP Server. Make sure that the name of the server has the domain suffix specified (e.g. 'mail-hub.bigpond.net.au', not just 'mail-hub').

    Step 4. Open a command prompt. Go to Start > Run > Type: 'cmd' > Press OK. Type: 'nslookup ' to get the IP Address of the server (example: nslookup mail.earthlink.net).

    Step 5. Enter that IP address in Outlook in the space for the SMTP Server on the Accounts tab. Click OK.


    If you continue to have problems with your email try changing the MTU settings on the router.
    Note: changing MTU on the router alone may not resolve the issue, in this case proceed with changing MTU on your computer's Network Adapter.


  • Changing MTU on router

    Step 1. Log into your router by open your Internet browser (e.g. Internet Explorer), enter the IP address of your router (e.g. 192.168.0.1) and press Enter. Specify username (admin) and password (blank by default) to log into the router.

    Step 2. Click on the Setup tab and click on Internet on the left side. Then click on the 'Manual Configure' button.

    Step 3. Look for the MTU field (note that it may not be available in some router models). The default MTU value is 1500, change it to lower number, e.g. 1200.

    Step 4. Test your ability to connect to those specific sites youre having trouble with. If changing the MTU rate to 1200 does not resolve the problem, start lowering it in increments of ten until the problem is resolved (you may need to go as low as 600 depending on your Internet connection).


  • Changing MTU on computer

    To lower the MTU size on your computer you can use utilities like Dr.TCP or TCP Optimizer. Alternatively you can follow the steps in this document: http://files.dlink.com.au/Products/!Routers/MTU_Win2K.XP.pdf
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