The underlying connection was closed: An unexpected error occured on a send || Error while accessing/logging in server manager.
ISSUE:
You are receiving the below error while accessing or logging in to ARCON server manager:
The underlying connection was closed: An unexpected error occured on a send
REASON:
This error is encountered when the client has performed TLS 1.2 hardening activity on their Application and Database servers but did not enable the TLS 1.2 configuration (ARCOS Application TLS 1.2 Enabled) in ARCON PAM.
RESOLUTION:
Enable the TLS 1.2 configuration in PAM DB (ARCOSDB) using the below steps:
1) First check if the setting is already enabled or not by execution the below select query on ARCOSDB:
select * from sso_arcos_config where aps_id = 167
select * from sso_arcos_config where aps_id = 167
the the column: 'aps_defaultvalue' If the entry is '0' that means the configuration is not enabled.
2) Enable the "ARCOS Application TLS 1.2 Enabled" configuration by executing the below update query:
update sso_arcos_config set aps_defaultvalue=1 where aps_id=167
3)After executing the above update query, execute the select query again to check if the column: 'aps_defaultvalue' entry is updated to '1' that means the configuration is now enabled.
4) Generate a new ASM folder for safety measure and check if the issue is resolved.