> Source: [sk135552](https://support.checkpoint.com/results/sk/sk135552)

# sk135552 - Cannot connect to Security Gateway through SSH & Web GUI

| Property | Value |
|----------|-------|
| Solution ID | sk135552 |
| Date Created | 2018-10-01 |
| Last Modified | 2021-05-03 |
| Technical Level | Advanced |
| Products | Security Gateway |
| Versions | R81 (EOS) |
| OS | Gaia |

## Symptoms

- * "`Network error: Software caused connection abort`" message while trying to do SSH and connecting to Web GUI from the client machine.
* In R80.40: Unable to SSH to the Security Gateway with "No supported authentication methods available "error message.
* In R80.40: /var/log/secure: `Feb 9 13:06:51 2021 sshd[8301]: error: Received disconnect from [IP Address] port 5 0322:14: No supported authentication methods available [preauth]`

## Cause

SSH and Web GUI connectivity issue with Security Gateway.

## Solution

This solution requires authentication. Please log in to view the full solution.

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