DIR-822-US User Manual

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88D-Link DIR-822 User Manual

Section 6 - Troubleshooting

You should start at 1472 and work your way down by 10 each time. Once you get a reply, go up by 2 until you get a fragmented

packet. Take that value and add 28 to the value to account for the various TCP/IP headers. For example, lets say that 1452 was the

proper value, the actual MTU size would be 1480, which is the optimum for the network we’re working with (1452+28=1480).

Once you nd your MTU, you can now congure your router with the proper MTU size.

To change the MTU rate on your router follow the steps below:

• Open your browser, enter the IP address of your router (192.168.0.1) and click OK.

• Enter your username (admin) and password (blank by default). Click OK to enter the web conguration page

for the device.

• Click on Setup and then click Manual Congure.

• To change the MTU, enter the number in the MTU eld and click Save Settings to save your settings.

• Test your e-mail. If changing the MTU does not resolve the problem, continue changing the MTU in increments

of ten.

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User Manual - Page 92