diff --git a/client/getDevice.go b/client/getDevice.go
index 0573d068..3f79e5ab 100644
--- a/client/getDevice.go
+++ b/client/getDevice.go
@@ -21,6 +21,7 @@ import (
 	"crypto/x509"
 	"errors"
 	"fmt"
+	"strings"
 
 	"github.com/plgd-dev/device/v2/client/core"
 	"github.com/plgd-dev/device/v2/pkg/net/coap"
@@ -92,7 +93,7 @@ type DeviceWithLinks struct {
 }
 
 func (c *Client) getDevicesByIP(ctx context.Context, ip string, expectedDeviceID string) ([]DeviceWithLinks, error) {
-	devs, err := c.getDeviceByIPWithUpdateCache(ctx, ip, expectedDeviceID)
+	devs, err := c.getDeviceByIPWithUpdateCache(ctx, strings.Trim(ip, "[]"), expectedDeviceID)
 	if err != nil {
 		return nil, err
 	}
diff --git a/client/observeDevices.go b/client/observeDevices.go
index a272b7a1..6c846bc8 100644
--- a/client/observeDevices.go
+++ b/client/observeDevices.go
@@ -20,6 +20,7 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"strings"
 	"sync"
 
 	"github.com/google/uuid"
@@ -220,7 +221,7 @@ func (o *devicesObserver) observe(ctx context.Context) (map[string]uint8, error)
 	for deviceID, ip := range devicesByIP {
 		go func(deviceID string, ip string) {
 			defer wg.Done()
-			if _, e := o.c.getDeviceByIPWithUpdateCache(ctx, ip, deviceID); e == nil {
+			if _, e := o.c.getDeviceByIPWithUpdateCache(ctx, strings.Trim(ip, "[]"), deviceID); e == nil {
 				newDevices.devices.LoadOrStore(deviceID, struct{}{})
 			}
 		}(deviceID, ip)