D-Link DIR-645 Инструкция по эксплуатации онлайн [131/134] 41204

127D-Link DIR-645 User Manual

Section 5 - Troubleshooting

What can I do if I forgot my password?

If you forgot your password, you must reset your router. Unfortunately this process will change all your settings back to the factory defaults.

To reset the router, locate the reset button (hole) on the bottom panel of the unit. With the router powered on, use a paperclip to hold the button

down for 10 seconds. Release the button and the router will go through its reboot process. Wait about 30 seconds to access the router. The default

IP address is 192.168.0.1. When logging in, the username is admin and leave the password box empty.

Why can’t I connect to certain sites or send and receive emails when connecting through my router?

If you are having a problem sending or receiving email, or connecting to secure sites such as eBay, banking sites, and Hotmail, we suggest lowering

Example: ping yahoo.com -f -l 1472

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:

• Test your email. If changing the MTU does not resolve the problem, continue changing the MTU in increments of ten.