# login issue

**URL:** <https://community.a10networks.com/t/login-issue/800>\
**Category:** TPS - DDoS Protection\
**Created:** [August 29, 2023, 12:37pm UTC](https://community.a10networks.com/t/login-issue/800 "2023-08-29T12:37:06Z")\
**Posts on this page:** 8\
**Page:** 1

<div class="post-metadata">

**Author:** ![haider](https://avatars.discourse-cdn.com/v4/letter/h/48db29/32.png) [@haider](https://community.a10networks.com/u/haider)\
**Post date:** [August 29, 2023, 12:37pm UTC](https://community.a10networks.com/t/login-issue/800/1 "2023-08-29T12:37:06Z")

</div>

Hello,

I recently purchased used A10 6430 antiddos ,I plugged it in and powered it on, and used a console cable to login to it.  
after a moment it shows me  
“localhost login:”  
I tried (admin,reset,install,a10…etc) almost everything but to no avail  
anyone can help me with that ?

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<div class="post-metadata">

**Author:** ![mdunn](https://avatars.discourse-cdn.com/v4/letter/m/87869e/32.png) [@mdunn](https://community.a10networks.com/u/mdunn)\
**Post date:** [August 29, 2023, 4:46pm UTC](https://community.a10networks.com/t/login-issue/800/2 "2023-08-29T16:46:49Z")

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You can try the administrator password recovery procedure:  
This procedure can only be performed through the security console, and only within the first five minutes of rebooting the ACOS device.

```yaml
1. Find and record the serial number on the back of the A10 
2. Reboot the ACOS device.
3. Connect to the serial console.
4. When prompted for the user name and password, enter the following:
User Name: reset
Password: serial number for your device
Use the serial number recorded in step 1.
5. After logging in, the CLI presents the following questions:
a. Do you want to reset admin password to default?[y/n]:
Answering y to this question resets the admin user name and password to the factory default admin
and a10.
b. Do you want to reset enable password to default?[y/n]:
Answering y to this question resets the enable password to the factory default, which is no password.
c. Do you want to erase startup config?[y/n]:
Answering y to this question clears the startup config, thus returning the device to its factory default
settings.
6. Answer y to the first question so that you can log on to the device; answer the other two questions as
desired for your needs.
7. After you log on to the device, change the admin password for security purposes.

```

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<div class="post-metadata">

**Author:** ![haider](https://avatars.discourse-cdn.com/v4/letter/h/48db29/32.png) [@haider](https://community.a10networks.com/u/haider)\
**Post date:** [August 29, 2023, 4:59pm UTC](https://community.a10networks.com/t/login-issue/800/3 "2023-08-29T16:59:48Z")

</div>

Thanks for your reply  
unfortunately, I tried “reset” but it did not accept it  
note that it did not even move to password prompt, stuck in “localhost login:”

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<div class="post-metadata">

**Author:** ![haider](https://avatars.discourse-cdn.com/v4/letter/h/48db29/32.png) [@haider](https://community.a10networks.com/u/haider)\
**Post date:** [August 30, 2023, 11:55am UTC](https://community.a10networks.com/t/login-issue/800/4 "2023-08-30T11:55:41Z")

</div>

anyone ?

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<div class="post-metadata">

**Author:** ![mdunn](https://avatars.discourse-cdn.com/v4/letter/m/87869e/32.png) [@mdunn](https://community.a10networks.com/u/mdunn)\
**Post date:** [September 2, 2023, 1:12am UTC](https://community.a10networks.com/t/login-issue/800/5 "2023-09-02T01:12:22Z")

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You could try booting from the other boot image location. After initial POST, you should see a prompt to hit ESC to select boot image. Try both Primary and Secondary to see if we can get a prompt other than “localhost”

 ![image.png](https://us1.discourse-cdn.com/flex002/uploads/a10_community/original/1X/766bce59f0f36512225e2ea16112e1e57f7d612c.png)

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<div class="post-metadata">

**Author:** ![haider](https://avatars.discourse-cdn.com/v4/letter/h/48db29/32.png) [@haider](https://community.a10networks.com/u/haider)\
**Post date:** [September 2, 2023, 8:55am UTC](https://community.a10networks.com/t/login-issue/800/6 "2023-09-02T08:55:39Z")

</div>

I tried the secondary image

 ![Capture.PNG](https://us1.discourse-cdn.com/flex002/uploads/a10_community/original/1X/56374a471a90de0d5c9a66e8e6898d453915e131.png)  
same, but when I enter something two additional lines shows  
CentOS  
Kernel

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<div class="post-metadata">

**Author:** ![haider](https://avatars.discourse-cdn.com/v4/letter/h/48db29/32.png) [@haider](https://community.a10networks.com/u/haider)\
**Post date:** [September 5, 2023, 9:33pm UTC](https://community.a10networks.com/t/login-issue/800/7 "2023-09-05T21:33:15Z")

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anyone?

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<div class="post-metadata">

**Author:** ![mdunn](https://avatars.discourse-cdn.com/v4/letter/m/87869e/32.png) [@mdunn](https://community.a10networks.com/u/mdunn)\
**Post date:** [September 12, 2023, 3:38pm UTC](https://community.a10networks.com/t/login-issue/800/8 "2023-09-12T15:38:25Z")

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Unfortunately, this sounds like an underlying image issue, and the device will need to be reviewed by TAC. I apologize for the inconvenience.