diff --git a/ui-ngx/src/app/modules/home/components/profile/device/lwm2m/lwm2m-device-profile-transport-configuration.component.ts b/ui-ngx/src/app/modules/home/components/profile/device/lwm2m/lwm2m-device-profile-transport-configuration.component.ts
index f7d01db377..e9b6b17edc 100644
--- a/ui-ngx/src/app/modules/home/components/profile/device/lwm2m/lwm2m-device-profile-transport-configuration.component.ts
+++ b/ui-ngx/src/app/modules/home/components/profile/device/lwm2m/lwm2m-device-profile-transport-configuration.component.ts
@@ -82,7 +82,7 @@ export class Lwm2mDeviceProfileTransportConfigurationComponent implements Contro
               private deviceProfileService: DeviceProfileService,
               @Inject(WINDOW) private window: Window) {
     this.lwm2mDeviceProfileFormGroup = this.fb.group({
-      objectIds: [[], Validators.required],
+      objectIds: [null, Validators.required],
       observeAttrTelemetry: [null, Validators.required],
       shortId: [null, Validators.required],
       lifetime: [null, Validators.required],
@@ -96,15 +96,10 @@ export class Lwm2mDeviceProfileTransportConfigurationComponent implements Contro
       configurationJson: [null, Validators.required]
     });
     this.lwm2mDeviceProfileFormGroup.valueChanges.subscribe((value) => {
-      if (!this.disabled) {
-        this.updateDeviceProfileValue(value);
-      }
+      this.updateDeviceProfileValue(value);
     });
     this.lwm2mDeviceConfigFormGroup.valueChanges.subscribe(() => {
-      console.warn('config form');
-      if (!this.disabled) {
-        this.updateModel();
-      }
+      this.updateModel();
     });
     this.sortFunction = this.sortObjectKeyPathJson;
   }
@@ -188,7 +183,7 @@ export class Lwm2mDeviceProfileTransportConfigurationComponent implements Contro
 
   private updateDeviceProfileValue(config): void {
     if (this.lwm2mDeviceProfileFormGroup.valid) {
-      this.upDateObserveAttrTelemetryFromGroupToJson(config.observeAttrTelemetry.clientLwM2M);
+      this.updateObserveAttrTelemetryFromGroupToJson(config.observeAttrTelemetry.clientLwM2M);
       this.configurationValue.bootstrap.bootstrapServer = config.bootstrapServer;
       this.configurationValue.bootstrap.lwm2mServer = config.lwm2mServer;
       const bootstrapServers = this.configurationValue.bootstrap.servers;
@@ -225,9 +220,6 @@ export class Lwm2mDeviceProfileTransportConfigurationComponent implements Contro
         this.updateKeyNameObjects(keyNameJson, clientObserveAttrTelemetry);
       }
     }
-    clientObserveAttrTelemetry.forEach(obj => {
-      obj.instances.sort((a, b) => a.id - b.id);
-    });
     return {clientLwM2M: clientObserveAttrTelemetry};
   }
 
@@ -239,8 +231,8 @@ export class Lwm2mDeviceProfileTransportConfigurationComponent implements Contro
   private addInstances = (attribute: string[], telemetry: string[], clientObserveAttrTelemetry: ObjectLwM2M[]): void => {
     const instancesPath = attribute.concat(telemetry)
       .filter(instance => !instance.includes('/0/'))
-      .map(instance => this.convertPathToInstance(instance))
-      .sort();
+      .map(instance => instance.slice(1, instance.lastIndexOf('/')))
+      .sort(this.sortPath);
 
     new Set(instancesPath).forEach(path => {
       const pathParameter = Array.from(path.split('/'), Number);
@@ -253,24 +245,14 @@ export class Lwm2mDeviceProfileTransportConfigurationComponent implements Contro
     });
   }
 
-  private convertPathToInstance = (path: string): string => {
-    const [objectId, instanceId] = path.substring(1).split('/');
-    return `${objectId}/${instanceId}`;
-  }
-
   private updateObserveAttrTelemetryObjects = (parameters: string[], clientObserveAttrTelemetry: ObjectLwM2M[],
                                                nameParameter: string): void => {
     parameters.forEach(parameter => {
       const [objectId, instanceId, resourceId] = Array.from(parameter.substring(1).split('/'), Number);
-      clientObserveAttrTelemetry
-        .forEach(key => {
-          if (key.id === objectId) {
-            const instance = key.instances.find(itrInstance => itrInstance.id === instanceId);
-            if (isDefinedAndNotNull(instance)) {
-              instance.resources.find(resource => resource.id === resourceId)[nameParameter] = true;
-            }
-          }
-        });
+      clientObserveAttrTelemetry.find(objectLwm2m => objectLwm2m.id === objectId)
+        .instances.find(itrInstance => itrInstance.id === instanceId)
+        .resources.find(resource => resource.id === resourceId)
+        [nameParameter] = true;
     });
   }
 
@@ -278,62 +260,60 @@ export class Lwm2mDeviceProfileTransportConfigurationComponent implements Contro
     const keyName = JSON.parse(JSON.stringify(nameJson));
     Object.keys(keyName).forEach(key => {
       const [objectId, instanceId, resourceId] = Array.from(key.substring(1).split('/'), Number);
-      clientObserveAttrTelemetry
-        .forEach(object => {
-          if (object.id === objectId) {
-            object.instances
-              .find(instance => instance.id === instanceId).resources
-              .find(resource => resource.id === resourceId).keyName = keyName[key];
-          }
-        });
+      clientObserveAttrTelemetry.find(objectLwm2m => objectLwm2m.id === objectId)
+        .instances.find(instance => instance.id === instanceId)
+        .resources.find(resource => resource.id === resourceId)
+        .keyName = keyName[key];
     });
   }
 
-  private upDateObserveAttrTelemetryFromGroupToJson = (val: ObjectLwM2M[]): void => {
+  private updateObserveAttrTelemetryFromGroupToJson = (val: ObjectLwM2M[]): void => {
     const observeArray: Array<string> = [];
     const attributeArray: Array<string> = [];
     const telemetryArray: Array<string> = [];
     const observeJson: ObjectLwM2M[] = JSON.parse(JSON.stringify(val));
+    const paths = new Set<string>();
     let pathObj;
     let pathInst;
     let pathRes;
     observeJson.forEach(obj => {
-      Object.entries(obj).forEach(([key, value]) => {
+      for (const [key, value] of Object.entries(obj)) {
         if (key === 'id') {
           pathObj = value;
         }
         if (key === 'instances') {
-          const instancesJson = JSON.parse(JSON.stringify(value)) as Instance[];
+          const instancesJson = value as Instance[];
           if (instancesJson.length > 0) {
             instancesJson.forEach(instance => {
-              Object.entries(instance).forEach(([instanceKey, instanceValue]) => {
+              for (const [instanceKey, instanceValue] of Object.entries(instance)) {
                 if (instanceKey === 'id') {
                   pathInst = instanceValue;
                 }
                 if (instanceKey === 'resources') {
-                  const resourcesJson = JSON.parse(JSON.stringify(instanceValue)) as ResourceLwM2M[];
+                  const resourcesJson = instanceValue as ResourceLwM2M[];
                   if (resourcesJson.length > 0) {
                     resourcesJson.forEach(res => {
-                      Object.entries(res).forEach(([resourceKey, resourceValue]) => {
+                      for (const [resourceKey, idResource] of Object.entries(res)) {
                         if (resourceKey === 'id') {
-                          // pathRes = resourceValue
-                          pathRes = '/' + pathObj + '/' + pathInst + '/' + resourceValue;
-                        } else if (resourceKey === 'observe' && resourceValue) {
+                          pathRes = `/${pathObj}/${pathInst}/${idResource}`;
+                        } else if (resourceKey === 'observe' && idResource) {
                           observeArray.push(pathRes);
-                        } else if (resourceKey === 'attribute' && resourceValue) {
+                        } else if (resourceKey === 'attribute' && idResource) {
                           attributeArray.push(pathRes);
-                        } else if (resourceKey === 'telemetry' && resourceValue) {
+                          paths.add(pathRes);
+                        } else if (resourceKey === 'telemetry' && idResource) {
                           telemetryArray.push(pathRes);
+                          paths.add(pathRes);
                         }
-                      });
+                      }
                     });
                   }
                 }
-              });
+              }
             });
           }
         }
-      });
+      }
     });
     if (isUndefined(this.configurationValue[this.observeAttr])) {
       this.configurationValue[this.observeAttr] = {
@@ -346,7 +326,7 @@ export class Lwm2mDeviceProfileTransportConfigurationComponent implements Contro
       this.configurationValue[this.observeAttr][this.attribute] = attributeArray;
       this.configurationValue[this.observeAttr][this.telemetry] = telemetryArray;
     }
-    this.updateKeyName();
+    this.updateKeyName(paths);
   }
 
   sortObjectKeyPathJson = (key: string, value: object): object => {
@@ -366,23 +346,13 @@ export class Lwm2mDeviceProfileTransportConfigurationComponent implements Contro
   }
 
   private sortPath = (a, b): number => {
-    const aLC = Array.from(a.substring(1).split('/'), Number);
-    const bLC = Array.from(b.substring(1).split('/'), Number);
-    return aLC[0] === bLC[0] ? aLC[1] - bLC[1] : aLC[0] - bLC[0];
+    return a.localeCompare(b, undefined, {
+      numeric: true,
+      sensitivity: 'base'
+    });
   }
 
-  private updateKeyName = (): void => {
-    const paths = new Set<string>();
-    if (this.configurationValue[this.observeAttr][this.attribute]) {
-      this.configurationValue[this.observeAttr][this.attribute].forEach(path => {
-        paths.add(path);
-      });
-    }
-    if (this.configurationValue[this.observeAttr][this.telemetry]) {
-      this.configurationValue[this.observeAttr][this.telemetry].forEach(path => {
-        paths.add(path);
-      });
-    }
+  private updateKeyName = (paths: Set<string>): void => {
     const keyNameNew = {};
     paths.forEach(path => {
       const pathParameter = this.findIndexesForIds(path);
@@ -395,19 +365,19 @@ export class Lwm2mDeviceProfileTransportConfigurationComponent implements Contro
   }
 
   private findIndexesForIds = (path: string): number[] => {
-    const pathParameter = Array.from(path.substring(1).split('/'), Number);
+    const [objectId, instanceId, resourceId] = Array.from(path.substring(1).split('/'), Number);
+    // TODO: All paths to map
     const pathParameterIndexes: number[] = [];
-    const objectsOld = deepClone(
-      this.lwm2mDeviceProfileFormGroup.get('observeAttrTelemetry').value.clientLwM2M) as ObjectLwM2M[];
-    let isIdIndex = (element) => element.id === pathParameter[0];
+    const objectsOld = this.lwm2mDeviceProfileFormGroup.get('observeAttrTelemetry').value.clientLwM2M as ObjectLwM2M[];
+    let isIdIndex = (element) => element.id === objectId;
     const objIndex = objectsOld.findIndex(isIdIndex);
     if (objIndex >= 0) {
       pathParameterIndexes.push(objIndex);
-      isIdIndex = (element) => element.id === pathParameter[1];
+      isIdIndex = (element) => element.id === instanceId;
       const instIndex = objectsOld[objIndex].instances.findIndex(isIdIndex);
       if (instIndex >= 0) {
         pathParameterIndexes.push(instIndex);
-        isIdIndex = (element) => element.id === pathParameter[2];
+        isIdIndex = (element) => element.id === resourceId;
         const resIndex = objectsOld[objIndex].instances[instIndex].resources.findIndex(isIdIndex);
         if (resIndex >= 0) {
           pathParameterIndexes.push(resIndex);
@@ -456,16 +426,16 @@ export class Lwm2mDeviceProfileTransportConfigurationComponent implements Contro
     if (index >= 0) {
       objectsOld.splice(index, 1);
     }
-    this.updateObserveAttrTelemetryObjectFormGroup(objectsOld);
     this.removeObserveAttrTelemetryFromJson(this.observe, value.id);
     this.removeObserveAttrTelemetryFromJson(this.telemetry, value.id);
     this.removeObserveAttrTelemetryFromJson(this.attribute, value.id);
     this.removeKeyNameFromJson(value.id);
+    this.updateObserveAttrTelemetryObjectFormGroup(objectsOld);
     this.upDateJsonAllConfig();
   }
 
   private removeObserveAttrTelemetryFromJson = (observeAttrTel: string, id: number): void => {
-    const isIdIndex = (element: string) => element.startsWith(`/${id}`);
+    const isIdIndex = (element) => element.startsWith(`/${id}`);
     let index = this.configurationValue[this.observeAttr][observeAttrTel].findIndex(isIdIndex);
     while (index >= 0) {
       this.configurationValue[this.observeAttr][observeAttrTel].splice(index, 1);
diff --git a/ui-ngx/src/app/modules/home/components/profile/device/lwm2m/lwm2m-object-list.component.ts b/ui-ngx/src/app/modules/home/components/profile/device/lwm2m/lwm2m-object-list.component.ts
index 625f9c77d9..3062c52ed3 100644
--- a/ui-ngx/src/app/modules/home/components/profile/device/lwm2m/lwm2m-object-list.component.ts
+++ b/ui-ngx/src/app/modules/home/components/profile/device/lwm2m/lwm2m-object-list.component.ts
@@ -19,18 +19,17 @@ import { ControlValueAccessor, FormBuilder, FormGroup, NG_VALUE_ACCESSOR, Valida
 import { coerceBooleanProperty } from '@angular/cdk/coercion';
 import { Store } from '@ngrx/store';
 import { AppState } from '@core/core.state';
-import { Observable, of } from 'rxjs';
-import { filter, map, mergeMap, tap } from 'rxjs/operators';
+import { Observable } from 'rxjs';
+import { filter, map, mergeMap, publishReplay, refCount, tap } from 'rxjs/operators';
 import { ObjectLwM2M } from './profile-config.models';
 import { TranslateService } from '@ngx-translate/core';
 import { DeviceProfileService } from '@core/http/device-profile.service';
 import { Direction } from '@shared/models/page/sort-order';
-import { isDefined, isDefinedAndNotNull, isEmptyStr } from '@core/utils';
+import { isDefined, isDefinedAndNotNull, isEmptyStr, isString } from '@core/utils';
 
 @Component({
   selector: 'tb-profile-lwm2m-object-list',
   templateUrl: './lwm2m-object-list.component.html',
-  styleUrls: [],
   providers: [
     {
       provide: NG_VALUE_ACCESSOR,
@@ -42,10 +41,10 @@ export class Lwm2mObjectListComponent implements ControlValueAccessor, OnInit, V
 
   private requiredValue: boolean;
   private dirty = false;
-  private allObjectsList: Observable<Array<ObjectLwM2M>>;
+  private lw2mModels: Observable<Array<ObjectLwM2M>>;
+  private modelValue: Array<number> = [];
 
   lwm2mListFormGroup: FormGroup;
-  modelValue: Array<number> | null;
   objectsList: Array<ObjectLwM2M> = [];
   filteredObjectsList: Observable<Array<ObjectLwM2M>>;
   disabled = false;
@@ -57,11 +56,8 @@ export class Lwm2mObjectListComponent implements ControlValueAccessor, OnInit, V
 
   @Input()
   set required(value: boolean) {
-    const newVal = coerceBooleanProperty(value);
-    if (this.requiredValue !== newVal) {
-      this.requiredValue = newVal;
-      this.updateValidators();
-    }
+    this.requiredValue = coerceBooleanProperty(value);
+    this.updateValidators();
   }
 
   @Output()
@@ -73,7 +69,7 @@ export class Lwm2mObjectListComponent implements ControlValueAccessor, OnInit, V
   @ViewChild('objectInput') objectInput: ElementRef<HTMLInputElement>;
 
   private propagateChange = (v: any) => {
-  };
+  }
 
   constructor(private store: Store<AppState>,
               public translate: TranslateService,
@@ -81,7 +77,7 @@ export class Lwm2mObjectListComponent implements ControlValueAccessor, OnInit, V
               private fb: FormBuilder) {
     this.lwm2mListFormGroup = this.fb.group({
       objectsList: [this.objectsList],
-      objectLwm2m: [null, this.required ? [Validators.required] : []]
+      objectLwm2m: ['']
     });
   }
 
@@ -104,11 +100,10 @@ export class Lwm2mObjectListComponent implements ControlValueAccessor, OnInit, V
           if (value && typeof value !== 'string') {
             this.add(value);
           } else if (value === null) {
-            this.clear(this.objectInput.nativeElement.value);
+            this.clear();
           }
         }),
-        filter((value) => typeof value === 'string'),
-        // map(value => value ? value : ''),
+        filter(searchText => isString(searchText)),
         mergeMap(searchText => this.fetchListObjects(searchText))
       );
   }
@@ -127,23 +122,21 @@ export class Lwm2mObjectListComponent implements ControlValueAccessor, OnInit, V
 
   writeValue(value: any): void {
     this.searchText = '';
-    const objectIds = 'objectIds';
-    if (value.hasOwnProperty(objectIds) && value[objectIds] != null && value[objectIds].length > 0) {
-      this.modelValue = [...value[objectIds]];
-      this.objectsList = value.objectsList;
-    } else {
-      this.objectsList = [];
-      this.modelValue = null;
+    if (isDefinedAndNotNull(value)) {
+      if (Array.isArray(value.objectIds)) {
+        this.modelValue = value.objectIds;
+        this.objectsList = value.objectsList;
+      } else {
+        this.objectsList = [];
+        this.modelValue = [];
+      }
+      this.lwm2mListFormGroup.get('objectsList').setValue(this.objectsList, {emitEvents: false});
+      this.dirty = false;
     }
-    this.lwm2mListFormGroup.get('objectsList').setValue(this.objectsList);
-    this.dirty = true;
   }
 
   private add(object: ObjectLwM2M): void {
-    if (!this.modelValue || this.modelValue.indexOf(object.id) === -1) {
-      if (!this.modelValue) {
-        this.modelValue = [];
-      }
+    if (this.modelValue.indexOf(object.id) === -1) {
       this.modelValue.push(object.id);
       this.objectsList.push(object);
       this.lwm2mListFormGroup.get('objectsList').setValue(this.objectsList);
@@ -176,41 +169,42 @@ export class Lwm2mObjectListComponent implements ControlValueAccessor, OnInit, V
     const filters = {names: [], ids: []};
     if (isDefinedAndNotNull(searchText) && !isEmptyStr(searchText)) {
       const ids = searchText.match(/\d+/g);
-      filters.ids = isDefinedAndNotNull(ids) ? ids.map(Number) as [] : filters.ids;
-      const names = searchText.trim().split(" ") as [];
-      filters.names = names;
+      filters.ids = ids !== null ? ids.map(Number) : filters.ids;
+      filters.names = searchText.trim().toUpperCase().split(' ');
     }
-    const predicate = objectLwM2M => filters.names.filter(word => objectLwM2M.name.toUpperCase().includes(word.toUpperCase())).length>0
+    const predicate = objectLwM2M => filters.names.find(word => objectLwM2M.name.toUpperCase().includes(word))
       || filters.ids.includes(objectLwM2M.id);
-    return this.getListModels().pipe(
+    return this.getLwM2mModels().pipe(
       map(objectLwM2Ms => searchText ? objectLwM2Ms.filter(predicate) : objectLwM2Ms)
     );
   }
 
-  private getListModels(): Observable<Array<ObjectLwM2M>> {
-    if (!this.allObjectsList) {
+  private getLwM2mModels(): Observable<Array<ObjectLwM2M>> {
+    if (!this.lw2mModels) {
       const sortOrder = {
         property: 'name',
         direction: Direction.ASC
       };
-      this.allObjectsList = this.deviceProfileService.getLwm2mObjects(sortOrder, null, null).pipe(
-        mergeMap(objectsList => of(objectsList))
+      this.lw2mModels = this.deviceProfileService.getLwm2mObjects(sortOrder).pipe(
+        publishReplay(1),
+        refCount()
       );
     }
-    return this.allObjectsList;
+    return this.lw2mModels;
   }
 
 
   onFocus = (): void => {
-    if (this.dirty) {
+    if (!this.dirty) {
       this.lwm2mListFormGroup.get('objectLwm2m').updateValueAndValidity({onlySelf: true, emitEvent: true});
-      this.dirty = false;
+      this.dirty = true;
     }
   }
 
   private clear = (value: string = ''): void => {
     this.objectInput.nativeElement.value = value;
-    this.lwm2mListFormGroup.get('objectLwm2m').patchValue(value, {emitEvent: true});
+    this.searchText = '';
+    this.lwm2mListFormGroup.get('objectLwm2m').patchValue(value);
     setTimeout(() => {
       this.objectInput.nativeElement.blur();
       this.objectInput.nativeElement.focus();
diff --git a/ui-ngx/src/app/modules/home/components/profile/device/lwm2m/lwm2m-observe-attr-telemetry.component.html b/ui-ngx/src/app/modules/home/components/profile/device/lwm2m/lwm2m-observe-attr-telemetry.component.html
index eb0e4bc88d..7b33264ba6 100644
--- a/ui-ngx/src/app/modules/home/components/profile/device/lwm2m/lwm2m-observe-attr-telemetry.component.html
+++ b/ui-ngx/src/app/modules/home/components/profile/device/lwm2m/lwm2m-observe-attr-telemetry.component.html
@@ -16,23 +16,24 @@
 
 -->
 
-<section [formGroup]="observeAttrTelemetryFormGroup" class="mat-padding">
+<section [formGroup]="observeAttrTelemetryFormGroup">
   <mat-accordion multi="true" class="mat-body-1" formArrayName="clientLwM2M">
     <mat-expansion-panel
-      *ngFor="let objectLwM2M of clientLwM2MFormArray.controls; let i = index; trackBy: trackByParams"
+      *ngFor="let objectLwM2M of clientLwM2MFormArray.controls; let i = index;"
       [formGroupName]="i">
       <mat-expansion-panel-header>
-        <mat-panel-title fxLayoutAlign="space-between">
-          <div class="tb-panel-title"><b><i>{{ objectLwM2M.get('name').value}}</i></b> (object [<b>{{ objectLwM2M.get('id').value}}</b>])</div>
-            <button type="button"
-                    *ngIf="!disabled"
-                    [fxShow]="objectLwM2M.get('multiple').value"
-                    mat-button mat-icon-button (click)="addInstances($event, objectLwM2M.value)"
-                    matTooltip="{{'device-profile.lwm2m.add-instances-tip' | translate}}"
-                    matTooltipPosition="above">
-              <mat-icon class="material-icons">{{'add'}}</mat-icon>
-            </button>
+        <mat-panel-title fxLayoutAlign="start center">
+          <b><i>{{ objectLwM2M.get('name').value}}</i></b>&nbsp;&lt;id: {{ objectLwM2M.get('id').value}}>
         </mat-panel-title>
+        <mat-panel-description fxLayoutAlign="end center" *ngIf="!disabled">
+          <button type="button"
+                  [fxShow]="objectLwM2M.get('multiple').value"
+                  mat-button mat-icon-button (click)="addInstances($event, objectLwM2M.value)"
+                  matTooltip="{{'device-profile.lwm2m.add-instances-tip' | translate}}"
+                  matTooltipPosition="above">
+            <mat-icon class="material-icons">{{'add'}}</mat-icon>
+          </button>
+        </mat-panel-description>
       </mat-expansion-panel-header>
       <ng-template matExpansionPanelContent>
         <div fxLayout="column" fxLayoutGap="8px" formArrayName="instances">
diff --git a/ui-ngx/src/app/modules/home/components/profile/device/lwm2m/lwm2m-observe-attr-telemetry.component.ts b/ui-ngx/src/app/modules/home/components/profile/device/lwm2m/lwm2m-observe-attr-telemetry.component.ts
index 4eeeb4b3e5..b208ed7e14 100644
--- a/ui-ngx/src/app/modules/home/components/profile/device/lwm2m/lwm2m-observe-attr-telemetry.component.ts
+++ b/ui-ngx/src/app/modules/home/components/profile/device/lwm2m/lwm2m-observe-attr-telemetry.component.ts
@@ -176,7 +176,7 @@ export class Lwm2mObserveAttrTelemetryComponent implements ControlValueAccessor
     this.observeAttrTelemetryFormGroup.get('clientLwM2M').updateValueAndValidity();
   }
 
-  trackByParams = (index: number): number => {
+  trackByParams = (index: number, element: any): number => {
     return index;
   }