diff --git a/config/configsanity.go b/config/configsanity.go
index 449ffc0fe..82974db14 100644
--- a/config/configsanity.go
+++ b/config/configsanity.go
@@ -19,7 +19,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>
 package config
 
 import (
-	"errors"
 	"fmt"
 	"os"
 
@@ -189,7 +188,7 @@ func (cfg *CGRConfig) checkConfigSanity() error {
 		if !cfg.cdrsCfg.Enabled {
 			for _, smgCDRSConn := range cfg.sessionSCfg.CDRsConns {
 				if smgCDRSConn.Address == utils.MetaInternal {
-					return fmt.Errorf("<%s> CDRS not enabled but referenced by SMGeneric component", utils.SessionS)
+					return fmt.Errorf("<%s> CDRS not enabled but referenced by SMGeneric component.", utils.SessionS)
 				}
 			}
 		}
@@ -208,7 +207,7 @@ func (cfg *CGRConfig) checkConfigSanity() error {
 			!cfg.sessionSCfg.Enabled {
 			for _, connCfg := range cfg.fsAgentCfg.SessionSConns {
 				if connCfg.Address == utils.MetaInternal {
-					return fmt.Errorf("%s not enabled but referenced by %s",
+					return fmt.Errorf("<%s> not enabled but referenced by <%s>",
 						utils.SessionS, utils.FreeSWITCHAgent)
 				}
 			}
@@ -224,7 +223,7 @@ func (cfg *CGRConfig) checkConfigSanity() error {
 			!cfg.sessionSCfg.Enabled {
 			for _, connCfg := range cfg.kamAgentCfg.SessionSConns {
 				if connCfg.Address == utils.MetaInternal {
-					return fmt.Errorf("%s not enabled but referenced by %s",
+					return fmt.Errorf("<%s> not enabled but referenced by <%s>",
 						utils.SessionS, utils.KamailioAgent)
 				}
 			}
@@ -240,7 +239,7 @@ func (cfg *CGRConfig) checkConfigSanity() error {
 			!cfg.sessionSCfg.Enabled {
 			for _, smAstSMGConn := range cfg.asteriskAgentCfg.SessionSConns {
 				if smAstSMGConn.Address == utils.MetaInternal {
-					return fmt.Errorf("%s not enabled but referenced by %s",
+					return fmt.Errorf("<%s> not enabled but referenced by <%s>",
 						utils.SessionS, utils.AsteriskAgent)
 				}
 			}
@@ -256,12 +255,13 @@ func (cfg *CGRConfig) checkConfigSanity() error {
 			!cfg.sessionSCfg.Enabled {
 			for _, daSMGConn := range cfg.diameterAgentCfg.SessionSConns {
 				if daSMGConn.Address == utils.MetaInternal {
-					return fmt.Errorf("%s not enabled but referenced by %s",
+					return fmt.Errorf("<%s> not enabled but referenced by <%s>",
 						utils.SessionS, utils.DiameterAgent)
 				}
 			}
 		}
 	}
+	//Radius Agent
 	if cfg.radiusAgentCfg.Enabled {
 		if len(cfg.radiusAgentCfg.SessionSConns) == 0 {
 			return fmt.Errorf("<%s> no %s connections defined",
@@ -271,12 +271,13 @@ func (cfg *CGRConfig) checkConfigSanity() error {
 			!cfg.sessionSCfg.Enabled {
 			for _, raSMGConn := range cfg.radiusAgentCfg.SessionSConns {
 				if raSMGConn.Address == utils.MetaInternal {
-					return fmt.Errorf("%s not enabled but referenced by %s",
+					return fmt.Errorf("<%s> not enabled but referenced by <%s>",
 						utils.SessionS, utils.RadiusAgent)
 				}
 			}
 		}
 	}
+	//DNS Agent
 	if cfg.dnsAgentCfg.Enabled {
 		if len(cfg.dnsAgentCfg.SessionSConns) == 0 {
 			return fmt.Errorf("<%s> no %s connections defined",
@@ -286,7 +287,7 @@ func (cfg *CGRConfig) checkConfigSanity() error {
 			!cfg.sessionSCfg.Enabled {
 			for _, sSConn := range cfg.dnsAgentCfg.SessionSConns {
 				if sSConn.Address == utils.MetaInternal {
-					return fmt.Errorf("%s not enabled but referenced by %s", utils.SessionS, utils.DNSAgent)
+					return fmt.Errorf("<%s> not enabled but referenced by <%s>", utils.SessionS, utils.DNSAgent)
 				}
 			}
 		}
@@ -298,17 +299,15 @@ func (cfg *CGRConfig) checkConfigSanity() error {
 			cfg.sessionSCfg.Enabled {
 			for _, sSConn := range httpAgentCfg.SessionSConns {
 				if sSConn.Address == utils.MetaInternal {
-					return errors.New("SessionS not enabled but referenced by HttpAgent component")
+					return fmt.Errorf("<%s> not enabled but referenced by <%s> component", utils.SessionS, utils.HTTPAgent)
 				}
 			}
 		}
 		if !utils.SliceHasMember([]string{utils.MetaUrl, utils.MetaXml}, httpAgentCfg.RequestPayload) {
-			return fmt.Errorf("<%s> unsupported request payload %s",
-				utils.HTTPAgent, httpAgentCfg.RequestPayload)
+			return fmt.Errorf("<%s> unsupported request payload %s", utils.HTTPAgent, httpAgentCfg.RequestPayload)
 		}
 		if !utils.SliceHasMember([]string{utils.MetaTextPlain, utils.MetaXml}, httpAgentCfg.ReplyPayload) {
-			return fmt.Errorf("<%s> unsupported reply payload %s",
-				utils.HTTPAgent, httpAgentCfg.ReplyPayload)
+			return fmt.Errorf("<%s> unsupported reply payload %s", utils.HTTPAgent, httpAgentCfg.ReplyPayload)
 		}
 	}
 	if cfg.attributeSCfg.Enabled {
@@ -320,7 +319,7 @@ func (cfg *CGRConfig) checkConfigSanity() error {
 		(cfg.attributeSCfg == nil || !cfg.attributeSCfg.Enabled) {
 		for _, connCfg := range cfg.chargerSCfg.AttributeSConns {
 			if connCfg.Address == utils.MetaInternal {
-				return errors.New("AttributeS not enabled but requested by ChargerS component.")
+				return fmt.Errorf("<%s> not enabled but requested by <%s> component.", utils.AttributeS, utils.ChargerS)
 			}
 		}
 	}
@@ -328,7 +327,7 @@ func (cfg *CGRConfig) checkConfigSanity() error {
 	if cfg.resourceSCfg.Enabled && !cfg.thresholdSCfg.Enabled && !cfg.dispatcherSCfg.Enabled {
 		for _, connCfg := range cfg.resourceSCfg.ThresholdSConns {
 			if connCfg.Address == utils.MetaInternal {
-				return errors.New("ThresholdS not enabled but requested by ResourceS component.")
+				return fmt.Errorf("<%s> not enabled but requested by <%s> component.", utils.ThresholdS, utils.ResourceS)
 			}
 		}
 	}
@@ -336,7 +335,7 @@ func (cfg *CGRConfig) checkConfigSanity() error {
 	if cfg.statsCfg.Enabled && !cfg.thresholdSCfg.Enabled && !cfg.dispatcherSCfg.Enabled {
 		for _, connCfg := range cfg.statsCfg.ThresholdSConns {
 			if connCfg.Address == utils.MetaInternal {
-				return errors.New("ThresholdS not enabled but requested by StatS component.")
+				return fmt.Errorf("<%s> not enabled but requested by <%s> component.", utils.ThresholdS, utils.StatService)
 			}
 		}
 	}
@@ -345,21 +344,21 @@ func (cfg *CGRConfig) checkConfigSanity() error {
 		if !cfg.resourceSCfg.Enabled {
 			for _, connCfg := range cfg.supplierSCfg.ResourceSConns {
 				if connCfg.Address == utils.MetaInternal {
-					return errors.New("ResourceS not enabled but requested by SupplierS component.")
+					return fmt.Errorf("<%s> not enabled but requested by <%s> component.", utils.ResourceS, utils.SupplierS)
 				}
 			}
 		}
 		if !cfg.statsCfg.Enabled {
 			for _, connCfg := range cfg.supplierSCfg.StatSConns {
 				if connCfg.Address == utils.MetaInternal {
-					return errors.New("StatS not enabled but requested by SupplierS component.")
+					return fmt.Errorf("<%s> not enabled but requested by <%s> component.", utils.StatService, utils.SupplierS)
 				}
 			}
 		}
 		if !cfg.attributeSCfg.Enabled {
 			for _, connCfg := range cfg.supplierSCfg.AttributeSConns {
 				if connCfg.Address == utils.MetaInternal {
-					return errors.New("AttributeS not enabled but requested by SupplierS component.")
+					return fmt.Errorf("<%s> not enabled but requested by <%s> component.", utils.AttributeS, utils.SupplierS)
 				}
 			}
 		}
@@ -368,7 +367,7 @@ func (cfg *CGRConfig) checkConfigSanity() error {
 	if !cfg.cdrsCfg.Enabled && !cfg.dispatcherSCfg.Enabled {
 		for _, connCfg := range cfg.schedulerCfg.CDRsConns {
 			if connCfg.Address == utils.MetaInternal {
-				return errors.New("CDR Server not enabled but requested by Scheduler")
+				return fmt.Errorf("%s Server not enabled but requested by %s", utils.CDR, utils.SchedulerS)
 			}
 		}
 	}
@@ -377,7 +376,7 @@ func (cfg *CGRConfig) checkConfigSanity() error {
 		if !cfg.sessionSCfg.Enabled {
 			for _, connCfg := range cfg.ersCfg.SessionSConns {
 				if connCfg.Address == utils.MetaInternal {
-					return errors.New("SessionS not enabled but requested by EventReader component.")
+					return fmt.Errorf("<%s> not enabled but requested by EventReader component.", utils.SessionS)
 				}
 			}
 		}
diff --git a/config/configsanity_test.go b/config/configsanity_test.go
index e6f34c882..02c03990e 100644
--- a/config/configsanity_test.go
+++ b/config/configsanity_test.go
@@ -165,3 +165,526 @@ func TestConfigSanityCDRC(t *testing.T) {
 		t.Errorf("Expecting: %+q  received: %+q", expected, err)
 	}
 }
+
+func TestConfigSanityLoaders(t *testing.T) {
+	cfg, _ = NewDefaultCGRConfig()
+	cfg.loaderCfg = LoaderSCfgs{
+		&LoaderSCfg{
+			Enabled: true,
+			TpInDir: "/not/exist",
+			Data: []*LoaderDataType{
+				&LoaderDataType{
+					Type: "strsdfing",
+				},
+			},
+		},
+	}
+	expected := "<LoaderS> Nonexistent folder: /not/exist"
+	if err := cfg.checkConfigSanity(); err == nil || err.Error() != expected {
+		t.Errorf("Expecting: %+q  received: %+q", expected, err)
+	}
+
+	cfg.loaderCfg = LoaderSCfgs{
+		&LoaderSCfg{
+			Enabled:  true,
+			TpInDir:  "/usr/share/cgrates",
+			TpOutDir: "/usr/share/cgrates",
+			Data: []*LoaderDataType{
+				&LoaderDataType{
+					Type: "wrongtype",
+				},
+			},
+		},
+	}
+	expected = "<LoaderS> unsupported data type wrongtype"
+	if err := cfg.checkConfigSanity(); err == nil || err.Error() != expected {
+		t.Errorf("Expecting: %+q  received: %+q", expected, err)
+	}
+
+	cfg.loaderCfg = LoaderSCfgs{
+		&LoaderSCfg{
+			Enabled:  true,
+			TpInDir:  "/usr/share/cgrates",
+			TpOutDir: "/usr/share/cgrates",
+			Data: []*LoaderDataType{
+				&LoaderDataType{
+					Type: utils.MetaStats,
+					Fields: []*FCTemplate{
+						&FCTemplate{
+							Type: utils.MetaStats,
+							Tag:  "test1",
+						},
+					},
+				},
+			},
+		},
+	}
+	expected = "<LoaderS> invalid field type *stats for *stats at test1"
+	if err := cfg.checkConfigSanity(); err == nil || err.Error() != expected {
+		t.Errorf("Expecting: %+q  received: %+q", expected, err)
+	}
+}
+
+func TestConfigSanitySessionS(t *testing.T) {
+	cfg, _ = NewDefaultCGRConfig()
+	cfg.sessionSCfg = &SessionSCfg{
+		Enabled:           true,
+		TerminateAttempts: 0,
+	}
+	expected := "<SessionS> 'terminate_attempts' should be at least 1"
+	if err := cfg.checkConfigSanity(); err == nil || err.Error() != expected {
+		t.Errorf("Expecting: %+q  received: %+q", expected, err)
+	}
+	cfg.sessionSCfg.TerminateAttempts = 1
+
+	cfg.sessionSCfg.ChargerSConns = []*RemoteHost{
+		&RemoteHost{
+			Address: utils.MetaInternal,
+		},
+	}
+	expected = "<SessionS> ChargerS not enabled"
+	if err := cfg.checkConfigSanity(); err == nil || err.Error() != expected {
+		t.Errorf("Expecting: %+q  received: %+q", expected, err)
+	}
+	cfg.chargerSCfg.Enabled = true
+
+	cfg.sessionSCfg.RALsConns = []*RemoteHost{
+		&RemoteHost{
+			Address: utils.MetaInternal,
+		},
+	}
+	expected = "<SessionS> RALs not enabled but requested by SMGeneric component."
+	if err := cfg.checkConfigSanity(); err == nil || err.Error() != expected {
+		t.Errorf("Expecting: %+q  received: %+q", expected, err)
+	}
+	cfg.ralsCfg.Enabled = true
+
+	cfg.sessionSCfg.ResSConns = []*RemoteHost{
+		&RemoteHost{
+			Address: utils.MetaInternal,
+		},
+	}
+	expected = "<SessionS> ResourceS not enabled but requested by SMGeneric component."
+	if err := cfg.checkConfigSanity(); err == nil || err.Error() != expected {
+		t.Errorf("Expecting: %+q  received: %+q", expected, err)
+	}
+	cfg.resourceSCfg.Enabled = true
+
+	cfg.sessionSCfg.ThreshSConns = []*RemoteHost{
+		&RemoteHost{
+			Address: utils.MetaInternal,
+		},
+	}
+	expected = "<SessionS> ThresholdS not enabled but requested by SMGeneric component."
+	if err := cfg.checkConfigSanity(); err == nil || err.Error() != expected {
+		t.Errorf("Expecting: %+q  received: %+q", expected, err)
+	}
+	cfg.thresholdSCfg.Enabled = true
+
+	cfg.sessionSCfg.StatSConns = []*RemoteHost{
+		&RemoteHost{
+			Address: utils.MetaInternal,
+		},
+	}
+	expected = "<SessionS> Stats not enabled but requested by SMGeneric component."
+	if err := cfg.checkConfigSanity(); err == nil || err.Error() != expected {
+		t.Errorf("Expecting: %+q  received: %+q", expected, err)
+	}
+	cfg.statsCfg.Enabled = true
+
+	cfg.sessionSCfg.SupplSConns = []*RemoteHost{
+		&RemoteHost{
+			Address: utils.MetaInternal,
+		},
+	}
+	expected = "<SessionS> SupplierS not enabled but requested by SMGeneric component."
+	if err := cfg.checkConfigSanity(); err == nil || err.Error() != expected {
+		t.Errorf("Expecting: %+q  received: %+q", expected, err)
+	}
+	cfg.supplierSCfg.Enabled = true
+
+	cfg.sessionSCfg.AttrSConns = []*RemoteHost{
+		&RemoteHost{
+			Address: utils.MetaInternal,
+		},
+	}
+	expected = "<SessionS> AttributeS not enabled but requested by SMGeneric component."
+	if err := cfg.checkConfigSanity(); err == nil || err.Error() != expected {
+		t.Errorf("Expecting: %+q  received: %+q", expected, err)
+	}
+	cfg.attributeSCfg.Enabled = true
+
+	cfg.sessionSCfg.CDRsConns = []*RemoteHost{
+		&RemoteHost{
+			Address: utils.MetaInternal,
+		},
+	}
+	expected = "<SessionS> CDRS not enabled but referenced by SMGeneric component."
+	if err := cfg.checkConfigSanity(); err == nil || err.Error() != expected {
+		t.Errorf("Expecting: %+q  received: %+q", expected, err)
+	}
+	cfg.cdrsCfg.Enabled = true
+
+	cfg.cacheCfg[utils.CacheClosedSessions].Limit = 0
+	expected = "<CacheS> *closed_sessions needs to be != 0, received: 0"
+	if err := cfg.checkConfigSanity(); err == nil || err.Error() != expected {
+		t.Errorf("Expecting: %+q  received: %+q", expected, err)
+	}
+
+}
+
+func TestConfigSanityFreeSWITCHAgent(t *testing.T) {
+	cfg, _ = NewDefaultCGRConfig()
+	cfg.fsAgentCfg = &FsAgentCfg{
+		Enabled: true,
+	}
+
+	expected := "<FreeSWITCHAgent> no SessionS connections defined"
+	if err := cfg.checkConfigSanity(); err == nil || err.Error() != expected {
+		t.Errorf("Expecting: %+q  received: %+q", expected, err)
+	}
+
+	cfg.fsAgentCfg = &FsAgentCfg{
+		Enabled: true,
+		SessionSConns: []*RemoteHost{
+			&RemoteHost{
+				Address: utils.MetaInternal,
+			},
+		},
+	}
+	expected = "<SessionS> not enabled but referenced by <FreeSWITCHAgent>"
+	if err := cfg.checkConfigSanity(); err == nil || err.Error() != expected {
+		t.Errorf("Expecting: %+q  received: %+q", expected, err)
+	}
+}
+
+func TestConfigSanityKamailioAgent(t *testing.T) {
+	cfg, _ = NewDefaultCGRConfig()
+	cfg.kamAgentCfg = &KamAgentCfg{
+		Enabled: true,
+	}
+	expected := "<KamailioAgent> no SessionS connections defined"
+	if err := cfg.checkConfigSanity(); err == nil || err.Error() != expected {
+		t.Errorf("Expecting: %+q  received: %+q", expected, err)
+	}
+
+	cfg.kamAgentCfg.SessionSConns = []*RemoteHost{
+		&RemoteHost{
+			Address: utils.MetaInternal,
+		},
+	}
+	expected = "<SessionS> not enabled but referenced by <KamailioAgent>"
+	if err := cfg.checkConfigSanity(); err == nil || err.Error() != expected {
+		t.Errorf("Expecting: %+q  received: %+q", expected, err)
+	}
+}
+
+func TestConfigSanityAsteriskAgent(t *testing.T) {
+	cfg, _ = NewDefaultCGRConfig()
+	cfg.asteriskAgentCfg = &AsteriskAgentCfg{
+		Enabled: true,
+	}
+	expected := "<AsteriskAgent> no SessionS connections defined"
+	if err := cfg.checkConfigSanity(); err == nil || err.Error() != expected {
+		t.Errorf("Expecting: %+q  received: %+q", expected, err)
+	}
+
+	cfg.asteriskAgentCfg.SessionSConns = []*RemoteHost{
+		&RemoteHost{
+			Address: utils.MetaInternal,
+		},
+	}
+	expected = "<SessionS> not enabled but referenced by <AsteriskAgent>"
+	if err := cfg.checkConfigSanity(); err == nil || err.Error() != expected {
+		t.Errorf("Expecting: %+q  received: %+q", expected, err)
+	}
+}
+
+func TestConfigSanityDAgent(t *testing.T) {
+	cfg, _ = NewDefaultCGRConfig()
+	cfg.diameterAgentCfg = &DiameterAgentCfg{
+		Enabled: true,
+	}
+	expected := "<DiameterAgent> no SessionS connections defined"
+	if err := cfg.checkConfigSanity(); err == nil || err.Error() != expected {
+		t.Errorf("Expecting: %+q  received: %+q", expected, err)
+	}
+
+	cfg.diameterAgentCfg.SessionSConns = []*RemoteHost{
+		&RemoteHost{
+			Address: utils.MetaInternal,
+		},
+	}
+	expected = "<SessionS> not enabled but referenced by <DiameterAgent>"
+	if err := cfg.checkConfigSanity(); err == nil || err.Error() != expected {
+		t.Errorf("Expecting: %+q  received: %+q", expected, err)
+	}
+}
+
+func TestConfigSanityRadiusAgent(t *testing.T) {
+	cfg, _ = NewDefaultCGRConfig()
+	cfg.radiusAgentCfg = &RadiusAgentCfg{
+		Enabled: true,
+	}
+	expected := "<RadiusAgent> no SessionS connections defined"
+	if err := cfg.checkConfigSanity(); err == nil || err.Error() != expected {
+		t.Errorf("Expecting: %+q  received: %+q", expected, err)
+	}
+
+	cfg.radiusAgentCfg.SessionSConns = []*RemoteHost{
+		&RemoteHost{
+			Address: utils.MetaInternal,
+		},
+	}
+	expected = "<SessionS> not enabled but referenced by <RadiusAgent>"
+	if err := cfg.checkConfigSanity(); err == nil || err.Error() != expected {
+		t.Errorf("Expecting: %+q  received: %+q", expected, err)
+	}
+}
+
+func TestConfigSanityDNSAgent(t *testing.T) {
+	cfg, _ = NewDefaultCGRConfig()
+	cfg.dnsAgentCfg = &DNSAgentCfg{
+		Enabled: true,
+	}
+	expected := "<DNSAgent> no SessionS connections defined"
+	if err := cfg.checkConfigSanity(); err == nil || err.Error() != expected {
+		t.Errorf("Expecting: %+q  received: %+q", expected, err)
+	}
+
+	cfg.dnsAgentCfg.SessionSConns = []*RemoteHost{
+		&RemoteHost{
+			Address: utils.MetaInternal,
+		},
+	}
+	expected = "<SessionS> not enabled but referenced by <DNSAgent>"
+	if err := cfg.checkConfigSanity(); err == nil || err.Error() != expected {
+		t.Errorf("Expecting: %+q  received: %+q", expected, err)
+	}
+}
+
+func TestConfigSanityHTTPAgent(t *testing.T) {
+	cfg, _ = NewDefaultCGRConfig()
+	cfg.sessionSCfg.Enabled = true
+	cfg.httpAgentCfg = HttpAgentCfgs{
+		&HttpAgentCfg{
+			SessionSConns: []*RemoteHost{
+				&RemoteHost{
+					Address: utils.MetaInternal,
+				},
+			},
+		},
+	}
+	expected := "<SessionS> not enabled but referenced by <HTTPAgent> component"
+	if err := cfg.checkConfigSanity(); err == nil || err.Error() != expected {
+		t.Errorf("Expecting: %+q  received: %+q", expected, err)
+	}
+	cfg.sessionSCfg.Enabled = false
+
+	cfg.httpAgentCfg = HttpAgentCfgs{
+		&HttpAgentCfg{
+			RequestPayload: "test",
+		},
+	}
+	expected = "<HTTPAgent> unsupported request payload test"
+	if err := cfg.checkConfigSanity(); err == nil || err.Error() != expected {
+		t.Errorf("Expecting: %+q  received: %+q", expected, err)
+	}
+
+	cfg.httpAgentCfg = HttpAgentCfgs{
+		&HttpAgentCfg{
+			RequestPayload: utils.MetaUrl,
+			ReplyPayload:   "test",
+		},
+	}
+	expected = "<HTTPAgent> unsupported reply payload test"
+	if err := cfg.checkConfigSanity(); err == nil || err.Error() != expected {
+		t.Errorf("Expecting: %+q  received: %+q", expected, err)
+	}
+	cfg.httpAgentCfg[0].ReplyPayload = utils.MetaTextPlain
+
+	cfg.attributeSCfg = &AttributeSCfg{
+		Enabled:     true,
+		ProcessRuns: 0,
+	}
+	expected = "<AttributeS> process_runs needs to be bigger than 0"
+	if err := cfg.checkConfigSanity(); err == nil || err.Error() != expected {
+		t.Errorf("Expecting: %+q  received: %+q", expected, err)
+	}
+	cfg.attributeSCfg = &AttributeSCfg{
+		ProcessRuns: 1,
+		Enabled:     false,
+	}
+
+	cfg.chargerSCfg.Enabled = true
+	cfg.chargerSCfg.AttributeSConns = []*RemoteHost{
+		&RemoteHost{
+			Address: utils.MetaInternal,
+		},
+	}
+	expected = "<AttributeS> not enabled but requested by <ChargerS> component."
+	if err := cfg.checkConfigSanity(); err == nil || err.Error() != expected {
+		t.Errorf("Expecting: %+q  received: %+q", expected, err)
+	}
+}
+
+func TestConfigSanityResourceLimiter(t *testing.T) {
+	cfg, _ = NewDefaultCGRConfig()
+	cfg.resourceSCfg = &ResourceSConfig{
+		Enabled: true,
+		ThresholdSConns: []*RemoteHost{
+			&RemoteHost{
+				Address: utils.MetaInternal,
+			},
+		},
+	}
+	expected := "<ThresholdS> not enabled but requested by <ResourceS> component."
+	if err := cfg.checkConfigSanity(); err == nil || err.Error() != expected {
+		t.Errorf("Expecting: %+q  received: %+q", expected, err)
+	}
+}
+
+func TestConfigSanityStatS(t *testing.T) {
+	cfg, _ = NewDefaultCGRConfig()
+	cfg.statsCfg = &StatSCfg{
+		Enabled: true,
+		ThresholdSConns: []*RemoteHost{
+			&RemoteHost{
+				Address: utils.MetaInternal,
+			},
+		},
+	}
+	expected := "<ThresholdS> not enabled but requested by <StatS> component."
+	if err := cfg.checkConfigSanity(); err == nil || err.Error() != expected {
+		t.Errorf("Expecting: %+q  received: %+q", expected, err)
+	}
+}
+
+func TestConfigSanitySupplierS(t *testing.T) {
+	cfg, _ = NewDefaultCGRConfig()
+	cfg.supplierSCfg.Enabled = true
+
+	cfg.supplierSCfg.ResourceSConns = []*RemoteHost{
+		&RemoteHost{
+			Address: utils.MetaInternal,
+		},
+	}
+	expected := "<ResourceS> not enabled but requested by <SupplierS> component."
+	if err := cfg.checkConfigSanity(); err == nil || err.Error() != expected {
+		t.Errorf("Expecting: %+q  received: %+q", expected, err)
+	}
+	cfg.resourceSCfg.Enabled = true
+
+	cfg.supplierSCfg.StatSConns = []*RemoteHost{
+		&RemoteHost{
+			Address: utils.MetaInternal,
+		},
+	}
+	expected = "<StatS> not enabled but requested by <SupplierS> component."
+	if err := cfg.checkConfigSanity(); err == nil || err.Error() != expected {
+		t.Errorf("Expecting: %+q  received: %+q", expected, err)
+	}
+	cfg.statsCfg.Enabled = true
+
+	cfg.supplierSCfg.AttributeSConns = []*RemoteHost{
+		&RemoteHost{
+			Address: utils.MetaInternal,
+		},
+	}
+	expected = "<AttributeS> not enabled but requested by <SupplierS> component."
+	if err := cfg.checkConfigSanity(); err == nil || err.Error() != expected {
+		t.Errorf("Expecting: %+q  received: %+q", expected, err)
+	}
+}
+
+func TestConfigSanityScheduler(t *testing.T) {
+	cfg, _ = NewDefaultCGRConfig()
+	cfg.schedulerCfg = &SchedulerCfg{
+		Enabled: true,
+		CDRsConns: []*RemoteHost{
+			&RemoteHost{
+				Address: utils.MetaInternal,
+			},
+		},
+	}
+	expected := "CDR Server not enabled but requested by SchedulerS"
+	if err := cfg.checkConfigSanity(); err == nil || err.Error() != expected {
+		t.Errorf("Expecting: %+q  received: %+q", expected, err)
+	}
+
+}
+
+func TestConfigSanityEventReader(t *testing.T) {
+	cfg, _ = NewDefaultCGRConfig()
+	cfg.ersCfg = &ERsCfg{
+		Enabled: true,
+		SessionSConns: []*RemoteHost{
+			&RemoteHost{
+				Address: utils.MetaInternal,
+			},
+		},
+	}
+	expected := "<SessionS> not enabled but requested by EventReader component."
+	if err := cfg.checkConfigSanity(); err == nil || err.Error() != expected {
+		t.Errorf("Expecting: %+q  received: %+q", expected, err)
+	}
+	cfg.sessionSCfg.Enabled = true
+
+	cfg.ersCfg.Readers = []*EventReaderCfg{
+		&EventReaderCfg{
+			ID:   "test",
+			Type: "wrongtype",
+		},
+	}
+	expected = "<ERs> unsupported data type: wrongtype for reader with ID: test"
+	if err := cfg.checkConfigSanity(); err == nil || err.Error() != expected {
+		t.Errorf("Expecting: %+q  received: %+q", expected, err)
+	}
+
+	cfg.ersCfg.Readers = []*EventReaderCfg{
+		&EventReaderCfg{
+			ID:            "test2",
+			Type:          utils.MetaFileCSV,
+			ProcessedPath: "not/a/path",
+		},
+	}
+	expected = "<ERs> Nonexistent folder: not/a/path for reader with ID: test2"
+	if err := cfg.checkConfigSanity(); err == nil || err.Error() != expected {
+		t.Errorf("Expecting: %+q  received: %+q", expected, err)
+	}
+
+	cfg.ersCfg.Readers = []*EventReaderCfg{
+		&EventReaderCfg{
+			ID:            "test3",
+			Type:          utils.MetaFileCSV,
+			ProcessedPath: "/usr/share/cgrates",
+			SourcePath:    "/usr/share/cgrates",
+			FieldSep:      "",
+		},
+	}
+	expected = "<ERs> empty FieldSep for reader with ID: test3"
+	if err := cfg.checkConfigSanity(); err == nil || err.Error() != expected {
+		t.Errorf("Expecting: %+q  received: %+q", expected, err)
+	}
+	cfg.ersCfg.Readers[0].FieldSep = utils.InInFieldSep
+
+	cfg.ersCfg.Readers[0].ID = "test4"
+	cfg.ersCfg.Readers[0].Type = utils.MetaKafkajsonMap
+	cfg.ersCfg.Readers[0].RunDelay = 1
+	expected = "<ERs> RunDelay field can not be bigger than zero for reader with ID: test4"
+	if err := cfg.checkConfigSanity(); err == nil || err.Error() != expected {
+		t.Errorf("Expecting: %+q  received: %+q", expected, err)
+	}
+}
+
+func TestConfigSanityStorDB(t *testing.T) {
+	cfg, _ = NewDefaultCGRConfig()
+	cfg.storDbCfg = &StorDbCfg{
+		Type:    utils.POSTGRES,
+		SSLMode: "wrongSSLMode",
+	}
+	expected := "<stor_db> Unsuported sslmode for storDB"
+	if err := cfg.checkConfigSanity(); err == nil || err.Error() != expected {
+		t.Errorf("Expecting: %+q  received: %+q", expected, err)
+	}
+}