Firewall has not checked in Sophos Central

RE: Firewall has not checked in Sophos Central

LuCar Toni — Sun, 30 May 2021 16:57:06 GMT

Do you use a Parent Proxy? Which Version do you use?

RE: Firewall has not checked in Sophos Central

Mariana Varanda — Sun, 30 May 2021 15:07:44 GMT

Also I verified if the DNS servers are resolving the name, and the test was successful, as you can see below:

RE: Firewall has not checked in Sophos Central

Mariana Varanda — Sun, 30 May 2021 14:58:01 GMT

Hi , thank you for the reply!

We actually have a internal proxy at the firewalls locations. We already allowed the traffic to *.upe.p.hmr.sophos.com and *.sophos.com in it.

We also use internal DNS servers. Is there anything else I should do internally to make this communication work?

Thank you.

RE: Firewall has not checked in Sophos Central

FormerMember — Sat, 29 May 2021 18:32:21 GMT

Hi Mariana Varanda,

Thanks for reaching out to the Community!

Is there any upstream proxy at the firewall locations where you see these alerts from? Looking at the logs, it seems the firewall can't connect to the central, and it might be an upstream device blocking access to the central.

Do you use internal DNS servers on your firewalls or DNS servers from ISP?

Thanks,