> Source: [sk119474](https://support.checkpoint.com/results/sk/sk119474)

# sk119474 - VPN tunnels are interrupted when adding/removing gateway members to the relevant SMP VPN community

| Property | Value |
|----------|-------|
| Solution ID | sk119474 |
| Date Created | 2017-08-16 |
| Last Modified | 2023-05-07 |
| Technical Level | General |
| Products | Spark Firewall (Locally Managed) |
| Versions | R81.10.X |
| Platform | 1500, 1600, 1800 |

## Symptoms

- When adding/removing a gateway member to SMP Full Mesh VPN community, the VPN tunnels between all members are interrupted for 2 minutes.

## Solution

This problem was fixed. The fix is included in:

* [Check Point R77.20.70 for Small and Medium Business Appliances](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk120473)

Check Point recommends to always upgrade to the most recent version ([Check Point 1100 appliance](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doShowproductpage&productTab=downloads&product=420) / [Check Point 600 appliance](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doShowproductpage&productTab=downloads&product=421) / [Check Point 1200R appliance](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doShowproductpage&productTab=overview&product=413) / [Check Point 700 appliance](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doShowproductpage&productTab=overview&product=460) / [Check Point 1400 appliance](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doShowproductpage&productTab=overview&product=490) / [upgrade Security Management Server](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doShowproductpage&productTab=downloads&product=184) / [upgrade Multi-Domain Security Management Server](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doShowproductpage&productTab=downloads&product=166)).

---

# 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