> Source: [sk119894](https://support.checkpoint.com/results/sk/sk119894)

# sk119894 - "Authentication error [error no. 147]" in rare cases when establishing SIC with new Security Gateway

| Property | Value |
|----------|-------|
| Solution ID | sk119894 |
| Date Created | 2017-08-15 |
| Last Modified | 2017-09-11 |
| Technical Level | Advanced |
| Products | Security Gateway, Security Management Server |
| Versions | R82.10, R82, R81.20, R82.10, R82, R81.20 |
| OS | Gaia |

## Symptoms

- * Scenario 1:
  * When establishing SIC with new Security Gateway, it fails with error: `"Not communicating. Authentication error [error no. 147]."`
  * The file: $CPDIR/log/cpd.elg is showing the following log:`
    conn from X.X.X.X to entity ? (0x86ed7f8) failed (0) No SIC error message`.
  * The following line is seen in the Security gateway $CPDIR/log/cpd.elg file and in the Security management's $FWDIR/log/fwm.elg file:  
    `fwasync_do_mux_in: XXX: read: Connection reset by peer`
  * Running 'tcpdump' on both sides - Management and Gateway - on both sides it is found that they are receiving RST packets, but are not sending them.
* Scenario 2:
  * GUI clients cannot connect to Security Management machine, where FWM shows the error:  
    `conn from X.X.X.X to entity ? (0x86ed7f8) failed (0) No SIC error message`
  * Taking wireshark on the client machine and tcpdump on the Security Management server / CMA, RST packets are received, but not sent by them
  * On the Security Management $FWDIR/log/fwm.elg the following log is seen: `fwasync_do_mux_in: XXX: read: Connection reset by peer`
* Security Gateway has valid MySICname after SIC establishment in the file: $CPDIR/registry/HKLM_registry.data

## Cause

Some device in the middle sends RST packets to both sides.

## Solution

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

---

# Agent Instructions

This content is from the Check Point Support Center (https://support.checkpoint.com), the official knowledge base for Check Point cybersecurity products.

## Navigating This Knowledge Base

- **Complete index**: [llms.txt](https://support.checkpoint.com/llms.txt)
- **All SK articles**: [SecureKnowledge Sitemap](https://support.checkpoint.com/sitemaps/secureknowledge-sitemap-index.xml)
- **SK article URL pattern**: `https://support.checkpoint.com/results/sk/{skId}`
- **Markdown responses**: AI bot User-Agents automatically receive `text/markdown` content