D-Link IRX1860A1 User Manual page 142

Section 7 - Troubleshooting
Once you find your MTU, you can now configure 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 configuration page for the
device.
• Click on Setup and then click Manual Configure.
• To change the MTU, enter the number in the MTU field and click Save Settings to save your settings.
• Test your email. If changing the MTU does not resolve the problem, continue changing the MTU in increments of ten.
D-Link DIR-X1860 User Manual 137