Why does my router lost its configuration during reboot?

Why does my router lost its configuration during reboot?

In most cases, this is the result of an improperly set configuration register. The configuration register is usually changed during password recovery to bypass the startup configuration upon reboot. Many times, the configuration register is not returned to a normal setting.

How do I save my router configuration?

How to backup and restore the settings configured in a router

1. Log in to the router. By default, User Name is “admin” and Password is “password”.
2. In the menu, under Maintenance, click Backup settings.
3. Click the Backup button.
4. Then select a location on your PC to save the file.

How do I change the register value on my router?

To change the configuration register settings from the Cisco IOS CLI, complete the following steps:

1. Connect a terminal or PC to the router console port.
2. Configure your terminal or terminal emulation software for 9600 baud (default), 8 data bits, no parity, and 2 stop bits.
3. Power on the router.

What is config Reg 0x2102?

The factory-default setting for the configuration register is 0x2102. This indicates that the router should attempt to load a Cisco IOS® software image from Flash memory and load the startup configuration with a console speed of 9600 baud.

Which data structures are lost if a router is rebooted or loses power?

When a router is rebooted or loses power, it can lose the configuration you set.

How do I save my router to NVRAM?

The running configuration is stored in RAM; the startup configuration is stored in NVRAM. To display the current running configuration, enter the show running-config command. Enter the copy running-config startup-config command to save the current running configuration to the startup configuration file in NVRAM.

What is Reg in router?

The way it determines these two things is by looking at its configuration register setting and its startup configuration in nonvolatile RAM (NVRAM). This lesson will cover how a router initializes. This file contains all the user-specified configuration information for the router.

Which configuration register starts the router normally?

All Cisco routers have a default configuration register setting of 0x2102, which tells the router to load the IOS from flash memory and the configuration from NVRAM. You save the configuration on a router with the copy running-config startup-config command and reboot the router.

How do I change my ROMmon config register?

How configure config register in ROMmon?

1. Boot into the ROMmon mode.
2. Change the configuration register such that the startup config is not loaded.
3. Boot into IOS.
4. Go to the privileged exec mode and copy startup config to running config.
5. Change the passwords.
6. Save the running config to startup config.

How do I find my config register value?

We can check this value on Cisco routers with “show version” command. At the output of “show version” command, Configuration Register value will be at the bottom.

What to do when router won’t load startup config?

To resolve this go to configuration mode and change the value to be config-register 0x2102. then write memory (or copy running-configuration to startup-configuration) and reload the router.

Why does my router lose its configuration during reboot?

From the Router# prompt, type show start and press ENTER. Your configuration must be the one that was saved before reboot or power loss. If you find that the configuration is not the same, it is possible that the router has ignored the startup configuration.

How do I enable privileged mode on my router?

After your router boots up, do not enter the initial configuration dialog (choose No when prompted). Press Enter to get to the Router> prompt. Type enable, and press ENTER to enter the privileged mode.

What should I do if my router is not connected to my phone?

If you are using a mobile phone to connect your Ring device, go into your phone settings and disable the cellular data connection. Disconnect the power cord to your modem and router for approximately 10 seconds, then plug your modem back in. Once it is back online, plug in your router and wait until it is re-connected to the internet.