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Archer C2
AC750 Wireless Dual Band Gigabit Router
- 116 -
Diagnostic Tool
- Check the radio button to select one diagnostic too.
Ping
-
This diagnostic tool troubleshoots connectivity, reachability, and name resolution to a
given host or gateway.
Traceroute
- This diagnostic tool tests the performance of a connection.
Note:
You can use ping/traceroute to test both numeric IP address or domain name. If
pinging/tracerouting the IP address is successful, but pinging/tracerouting the domain name
is not, you might have a name resolution problem. In this case, ensure that the domain name
you are specifying can be resolved by using Domain Name System (DNS) queries.
IP Address/Domain Name
- Enter the IP Address or Domain Name of the PC whose
connection you wish to diagnose.
Ping Count -
Specifies the number of Echo Request messages sent. The default is 4.
Ping Packet Size -
Specifies the number of data bytes to be sent. The default is 64.
Ping Timeout -
Time to wait for a response, in milliseconds. The default is 800.
Traceroute Max TTL -
Set the maximum number of hops (max TTL to be reached) in the
path to search for the target (destination). The default is 20.
Click
Start
to check the connectivity of the Internet.
The
Diagnostic Results
page displays the result of diagnosis.
If the result is similar to the following screen, the connectivity of the Internet is fine.
Figure 4-112 Diagnostic Results
Note:
1.
Only one user can use the diagnostic tools at one time.
2.
"Ping Count", "Ping Packet Size" and "Ping Timeout" are Ping Parameters, and "Traceroute
Max TTL" is Traceroute Parameter.
Page 127 / 143
Archer C2
AC750 Wireless Dual Band Gigabit Router
- 117 -
4.21.3
Firmware Upgrade
Choose menu “
System Tools
→
Firmware Upgrade
”, and then you can update the latest
version of firmware for the router on the following screen.
Figure 4-113 Firmware Upgrade
Firmware Version
-
Displays the current firmware version.
Hardware Version
-
Displays the current hardware version. The hardware version of the
upgrade file must accord with the router’s current hardware version.
To upgrade the router's firmware, follow these instructions below:
1.
Download a most recent firmware upgrade file from our website (www.tp-link.com).
2.
Enter or select the path name where you save the downloaded file on the computer into the
Firmware
File Path
blank.
3.
Click the
Upgrade
button.
4.
The router will reboot while the upgrading has been finished.
Note:
1)
New firmware versions are posted at
www.tp-link.com
and can be downloaded for free. There
is no need to upgrade the firmware unless the new firmware has a new feature you want to
use. However, when experiencing problems caused by the router rather than the
configuration, you can try to upgrade the firmware.
2)
When you upgrade the router's firmware, you may lose its current configurations, so before
upgrading the firmware please write down some of your customized settings to avoid losing
important settings.
3)
Do not turn off the router or press the Reset button while the firmware is being upgraded. Loss
of power during the upgrade could damage the router.
4)
The firmware version must correspond to the hardware.
5)
The upgrade process takes a few moments and the router restarts automatically when the
upgrade is complete.
Page 128 / 143
Archer C2
AC750 Wireless Dual Band Gigabit Router
- 118 -
4.21.4
Factory Defaults
Choose menu “
System Tools
→
Factory Defaults
”, and then and you can restore the
configurations of the router to factory defaults on the following screen
Figure 4-114 Restore Factory Default
Click the
Restore
button to reset all configuration settings to their default values.
The default
User Name
: admin
The default
Password
: admin
The default
Subnet Mask
: 255.255.255.0
Note:
All changed settings will be lost when defaults are restored.
4.21.5
Backup & Restore
Choose menu “
System Tools
→
Backup & Restore
”, and then you can save the current
configuration of the router as a backup file and restore the configuration via a backup file as
shown in Figure 4-115.
Figure 4-115 Backup & Restore Configuration
Click the
Backup
button to save all configuration settings as a backup file in your local
computer.
To upgrade the router's configuration, follow these instructions.
Click the
Browse
button to find the configuration file which you want to restore.
Page 129 / 143
Archer C2
AC750 Wireless Dual Band Gigabit Router
- 119 -
Click the
Restore
button to update the configuration with the file whose path is the one
you have input or selected in the blank.
Note:
The current configuration will be covered with the uploading configuration file. Wrong process will
lead the device unmanaged. The restoring process lasts for 20 seconds and the router will restart
automatically then. Keep the power of the router on during the process, in case of any damage.
4.21.6
Reboot
Choose menu “
System Tools
→
Reboot
”, and then you can click the
Reboot
button to reboot
the router via the next screen.
Figure 4-116 Reboot the router
Some settings of the router will take effect only after rebooting, which include
Change the LAN IP Address (system will reboot automatically).
Upgrade the firmware of the router (system will reboot automatically).
Restore the router's settings to factory defaults (system will reboot automatically).
Update the configuration with the file (system will reboot automatically).
4.21.7
Password
Choose menu “
System Tools
→
Password
”, and then you can change the factory default user
name and password of the router in the next screen as shown in Figure 4-117.
Page 130 / 143
Archer C2
AC750 Wireless Dual Band Gigabit Router
- 120 -
Figure 4-117 Password
It is strongly recommended that you should change the factory default user name and password
of the router, because all users who try to access the router's Web-based utility or Quick Setup
will be prompted for the router's default user name and password.
Note:
The new user name and password must not exceed 14 characters in length and not include any
spaces. Enter the new Password twice to confirm it.
Click the
Save
button when finished.
Click the
Clear All
button to clear all.
4.21.8
System Log
Choose menu “
System Tools
→
System Log
”, and then you can view the logs of the router.
Log Type -
By selecting the log type, only logs of this type will be shown.
Log Level -
By selecting the log level, only logs of this level will be shown.
Refresh -
Refresh the page to show the latest log list.
Clear Log -
All the logs will be deleted from the router permanently, not just from the page.
Save Log -
Click to save all the logs in a txt file.

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