Connect to apps.support.sap.com NIECONN_REFUSED(-10)

[former_member640015]

Hello ?everyone?

I met some problem in solution manager 7.2 that i make the basic configuration ?when Check connectivity and credentials to SAP Support Portal and SAP Support Documents has error ?and in sm59?i test the connection with support.sap but failed .all error related that attachment .thank you !

[former_member629252]

Have you resolved this? How?

[sankar_27]

please open 443 in the firewall for below targets

notesdownloads.sap.com

documents.support.sap.com

apps.support.sap.com

Thanks

Sankar

[tsoyalex]

Hello Zipeng,

Check the network connectivity. Probably you should use the SAP Router string with target host.

Regards,
Alexander

[bios117]

Hello Zipeng,

Alexander is right the sap router string seems missing or an firewall is blocking the port 433, please check.

Best regards,

Bill

[wanjiru]

i had the firewall opened and it worked

Or it could be ,

The server that hosts the SAP system does not have direct access to the internet.

https://me.sap.com/notes/0002901677

[former_member689150]

Hello haydenliu!

You should use the SAP Router string with target host, check the network connectivit with your network team and use the link below with the guide step by step backbone SAP.

https://blogs.sap.com/2019/11/14/step-by-step-guide-on-sap-support-backbone-update-and-enabling-note...

Best regards,

Ronaldo Ribeiro

[former_member400068]

Yes it worked for me.

[kashyap_shah3]

Hi Liu,

Have you checked following related questions that appear beside yours:
https://answers.sap.com/questions/383889/solution-manager-support-hub-communication-rfc-err.html
https://answers.sap.com/questions/12610283/connect-to-appssupportsapcom443-failedniehos.html

Best Regards,
Kashyap Shah

[kashyap_shah3]

Another point: there was a maintenance notification for Sapserv7/9 although for 9-November.

I'd faced similar error on 4-November while there was no such notification and SAP later released SAP Note 2857044 - Connection to SAP-SUPPORT_PARCELBOX failed with SSSLRC_CONN_CLOSED (-10) fixing the issue at their end.

So it may be worth raising incident to SAP if everything looks good at your end.