EQA1986E Unexpected TCP/IP error. Module= module_name, Location= location_id, TCP/IP call= call_type, return_code= rc.

Explanation
The host communications code received an unexpected return code from a TCP/IP call. The
information displayed is for diagnostic purposes. 
module_name is the name of the communications module issuing the
TCP/IP call

location_id is an internal three-digit identifier for the TCP/IP call
within the module

call_type is the TCP/IP call type (for example, CONNECT or
SHUTDOWN)

rc is the unexpected return code that is displayed in decimal
format

Programmer response
For remote debug mode, you need to provide the correct TCP/IP address and/or port number of the
workstation.