> Source: [sk126272](https://support.checkpoint.com/results/sk/sk126272)

# sk126272 - No link between gateway and peer switch after establishing physical connection

| Property | Value |
|----------|-------|
| Solution ID | sk126272 |
| Date Created | 2018-05-07 |
| Last Modified | 2019-11-08 |
| Technical Level | General |
| Products | Security Gateway, Hardware, Scalable Platforms |
| Versions | R82.10, R82, R81.20, Not Version-Specific, R82, R81.20 |
| Platform | 15000, 3000, 6, 41000 (EOL), 44000, 64000, 16000, 26000 |

## Symptoms

- No link between firewall gateway and peer switch after establishing physical connection

## Cause

The MPO/MTP cable type is wrong. Correct cable type for connecting the gateway to a peer switch is not known.

## Solution

Select a **MPO Type B** cable with 'female' connector on both sides.

Schema of an MPO type B cable

![](https://sc1.checkpoint.com/sc/SolutionsStatics/NEW_SK_NOID1525681116550/MPO_type_B1805070155.PNG)

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