diff --git a/config/kamagentcfg.go b/config/kamagentcfg.go
index 03927a300..b52ca6420 100644
--- a/config/kamagentcfg.go
+++ b/config/kamagentcfg.go
@@ -19,6 +19,8 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>
 package config
 
 import (
+	"time"
+
 	"github.com/cgrates/cgrates/utils"
 	"github.com/cgrates/rpcclient"
 )
@@ -37,12 +39,12 @@ type KamConnCfg struct {
 	Alias                string
 	Address              string
 	Reconnects           int
-	MaxReconnectInterval string
+	MaxReconnectInterval time.Duration
 }
 
-func (kamCfg *KamConnCfg) loadFromJSONCfg(jsnCfg *KamConnJsonCfg) error {
+func (kamCfg *KamConnCfg) loadFromJSONCfg(jsnCfg *KamConnJsonCfg) (err error) {
 	if jsnCfg == nil {
-		return nil
+		return
 	}
 	if jsnCfg.Address != nil {
 		kamCfg.Address = *jsnCfg.Address
@@ -54,9 +56,11 @@ func (kamCfg *KamConnCfg) loadFromJSONCfg(jsnCfg *KamConnJsonCfg) error {
 		kamCfg.Reconnects = *jsnCfg.Reconnects
 	}
 	if jsnCfg.MaxReconnectInterval != nil {
-		kamCfg.MaxReconnectInterval = *jsnCfg.MaxReconnectInterval
+		if kamCfg.MaxReconnectInterval, err = utils.ParseDurationWithNanosecs(*jsnCfg.MaxReconnectInterval); err != nil {
+			return
+		}
 	}
-	return nil
+	return
 }
 
 // AsMapInterface returns the config as a map[string]interface{}
diff --git a/config/sessionscfg.go b/config/sessionscfg.go
index 8dcb4c3c7..3e2cbb05a 100644
--- a/config/sessionscfg.go
+++ b/config/sessionscfg.go
@@ -41,13 +41,13 @@ type FsConnCfg struct {
 	Address              string
 	Password             string
 	Reconnects           int
-	MaxReconnectInterval string
+	MaxReconnectInterval time.Duration
 	Alias                string
 }
 
-func (fs *FsConnCfg) loadFromJSONCfg(jsnCfg *FsConnJsonCfg) error {
+func (fs *FsConnCfg) loadFromJSONCfg(jsnCfg *FsConnJsonCfg) (err error) {
 	if jsnCfg == nil {
-		return nil
+		return
 	}
 	if jsnCfg.Address != nil {
 		fs.Address = *jsnCfg.Address
@@ -59,14 +59,16 @@ func (fs *FsConnCfg) loadFromJSONCfg(jsnCfg *FsConnJsonCfg) error {
 		fs.Reconnects = *jsnCfg.Reconnects
 	}
 	if jsnCfg.MaxReconnectInterval != nil {
-		fs.MaxReconnectInterval = *jsnCfg.MaxReconnectInterval
+		if fs.MaxReconnectInterval, err = utils.ParseDurationWithNanosecs(*jsnCfg.MaxReconnectInterval); err != nil {
+			return
+		}
 	}
 	fs.Alias = fs.Address
 	if jsnCfg.Alias != nil && *jsnCfg.Alias != "" {
 		fs.Alias = *jsnCfg.Alias
 	}
 
-	return nil
+	return
 }
 
 // AsMapInterface returns the config as a map[string]interface{}
@@ -711,12 +713,12 @@ type AsteriskConnCfg struct {
 	Password             string
 	ConnectAttempts      int
 	Reconnects           int
-	MaxReconnectInterval string
+	MaxReconnectInterval time.Duration
 }
 
-func (aConnCfg *AsteriskConnCfg) loadFromJSONCfg(jsnCfg *AstConnJsonCfg) error {
+func (aConnCfg *AsteriskConnCfg) loadFromJSONCfg(jsnCfg *AstConnJsonCfg) (err error) {
 	if jsnCfg == nil {
-		return nil
+		return
 	}
 	if jsnCfg.Address != nil {
 		aConnCfg.Address = *jsnCfg.Address
@@ -737,9 +739,11 @@ func (aConnCfg *AsteriskConnCfg) loadFromJSONCfg(jsnCfg *AstConnJsonCfg) error {
 		aConnCfg.Reconnects = *jsnCfg.Reconnects
 	}
 	if jsnCfg.MaxReconnectInterval != nil {
-		aConnCfg.MaxReconnectInterval = *jsnCfg.MaxReconnectInterval
+		if aConnCfg.MaxReconnectInterval, err = utils.ParseDurationWithNanosecs(*jsnCfg.MaxReconnectInterval); err != nil {
+			return
+		}
 	}
-	return nil
+	return
 }
 
 // AsMapInterface returns the config as a map[string]interface{}
@@ -751,7 +755,7 @@ func (aConnCfg *AsteriskConnCfg) AsMapInterface() map[string]interface{} {
 		utils.Password:                aConnCfg.Password,
 		utils.ConnectAttemptsCfg:      aConnCfg.ConnectAttempts,
 		utils.ReconnectsCfg:           aConnCfg.Reconnects,
-		utils.MaxReconnectIntervalCfg: aConnCfg.MaxReconnectInterval,
+		utils.MaxReconnectIntervalCfg: aConnCfg.MaxReconnectInterval.String(),
 	}
 }