Merge pull request #3403 from geky/lwip-fix-tcp-connect-error

lwip - Fixed error codes for failed TCP connect

Author: adbridge

features/FEATURE_LWIP/lwip-interface/lwip_stack.c

@@ -559,11 +559,12 @@ static nsapi_error_t mbed_lwip_err_remap(err_t err) {
     switch (err) {
         case ERR_OK:
         case ERR_CLSD:
-        case ERR_RST:
             return 0;
         case ERR_MEM:
             return NSAPI_ERROR_NO_MEMORY;
         case ERR_CONN:
+        case ERR_RST:
+        case ERR_ABRT:
             return NSAPI_ERROR_NO_CONNECTION;
         case ERR_TIMEOUT:
         case ERR_RTE: