Error while connecting wiht OSS1

Hi,

We are still using SAP 45b for one of the systems. And we are facing an issue while connecting to SAP Net. When I go to OSS1 -> 'Login to SAP Online Service System'. it gives the error as

"sapserv1 : route per mission denied ( 153.88.124.144 to 147.204.120.89 sapdp01 )".

I tried to add the same entry in saprouttab but still getting the error. Can anyone suggest me what could be the cause of it.

Best Regards,

Hussain.