@@ -14,6 +14,7 @@ import (

 	"github.com/docker/docker/api/types"

 	"github.com/docker/docker/api/types/versions"

 	"github.com/docker/docker/client/transport/cancellable"

+	"github.com/pkg/errors"

 	"golang.org/x/net/context"

 )

@@ -131,7 +132,8 @@ func (cli *Client) sendClientRequest(ctx context.Context, method, path string, q

 				}

 			}

 		}

-		return serverResp, fmt.Errorf("An error occurred trying to connect: %v", err)

+

+		return serverResp, errors.Wrap(err, "error during connect")

 	}

 	if resp != nil {

@@ -1703,7 +1703,7 @@ func (s *DockerDaemonSuite) TestDaemonNoTlsCliTlsVerifyWithEnv(c *check.C) {

 	cmd.Env = []string{"DOCKER_TLS_VERIFY=1", "DOCKER_CERT_PATH=fixtures/https"}

 	out, _, err := runCommandWithOutput(cmd)

 	c.Assert(err, check.Not(check.IsNil), check.Commentf("%s", out))

-	c.Assert(strings.Contains(out, "error occurred trying to connect"), check.Equals, true)

+	c.Assert(strings.Contains(out, "error during connect"), check.Equals, true)

 }

@@ -2662,7 +2662,7 @@ func (s *DockerSuite) TestRunTLSverify(c *check.C) {

 	// Regardless of whether we specify true or false we need to

 	// test to make sure tls is turned on if --tlsverify is specified at all

 	result := dockerCmdWithResult("--tlsverify=false", "ps")

-	result.Assert(c, icmd.Expected{ExitCode: 1, Err: "trying to connect"})

+	result.Assert(c, icmd.Expected{ExitCode: 1, Err: "error during connect"})

 	result = dockerCmdWithResult("--tlsverify=true", "ps")

 	result.Assert(c, icmd.Expected{ExitCode: 1, Err: "cert"})