Sophos XG – Registering with RED registry service failed [RESOLVED]
If you try to activate the Sophos RED service on a Sophos XG Firewall and get the following error, then read this post as it may help you fix the issue.
Error – Registering with RED registry service failed. Please make sure that this device can connect to the internet on port 3400.
- SSH/Telnet to the Sophos XG Firewall.
2. Connect to the “Advanced Shell”
3. Type the command telnet red.astaro.com 3400 if this comes back as “connected” then it should work.
![Sophos XG - Registering with RED registry service failed [RESOLVED]](https://i0.wp.com/www.systemtek.co.uk/wp-content/uploads/2021/09/XG-ok.jpg?resize=638%2C96&ssl=1)
You may also need to create a firewall rule to allow port 3400 outbound access, when tested from command shell red.astaro.com comes back as 46.51.176.142 so it would be best to create a rule to allow both port / IP and hostname.
There is also a limit on the organization name of 38 characters.
Check that your ISP doe snot block port 3400 outbound.
![Sophos XG - Registering with RED registry service failed [RESOLVED]](https://i0.wp.com/www.systemtek.co.uk/wp-content/uploads/2022/01/blank-profile-hi.png?resize=100%2C100)
Duncan is a technology professional with over 20 years experience of working in various IT roles. He has a interest in cyber security, and has a wide range of other skills in radio, electronics and telecommunications.