> Source: [sk177248](https://support.checkpoint.com/results/sk/sk177248)

# sk177248 - Login to SmartConsole fails with message: "An internal error has occurred"

| Property | Value |
|----------|-------|
| Solution ID | sk177248 |
| Date Created | 2022-01-06 |
| Last Modified | 2022-11-29 |
| Technical Level | General |
| Products | Security Management Server, Multi-Domain Security Management Server |
| Versions | R81.20, R81.10 (EOS), R81.10 (EOS), R81.20 |

## Symptoms

- Login to SmartConsole fails with message: "*An internal error has occurred*"

## Cause

The GUI client definition was changed in version R81.10 and higher.

## Solution

**You can use any of these formats to add GUI Clients:**

* IP address.
* Machine name.
* "Any" - Any IP without restriction.
* IP/Netmask - A range of addresses, for example 192.168.10.0/255.255.255.0 or 2001::1/128.
* A range of addresses - for example 192.168.10.8-192.168.10.16 or 2001::1-2001::10.
* Wild cards (IPv4 only) - for example 192.168.10.\*

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