diff --git a/ogWebconsole/src/app/components/groups/groups.component.html b/ogWebconsole/src/app/components/groups/groups.component.html
index 435d965..e28e7ea 100644
--- a/ogWebconsole/src/app/components/groups/groups.component.html
+++ b/ogWebconsole/src/app/components/groups/groups.component.html
@@ -358,7 +358,13 @@
                   <tr mat-row *matRowDef="let row; columns: displayedColumns;"></tr>
                 </table>
               </section>
-              <mat-paginator [pageSize]="20" [pageSizeOptions]="[5, 10, 20, 50]" showFirstLastButtons></mat-paginator>
+              <mat-paginator
+                [length]="length"
+                [pageSize]="itemsPerPage"
+                [pageIndex]="page"
+                [pageSizeOptions]="pageSizeOptions"
+                (page)="onPageChange($event)">
+              </mat-paginator>
             </div>
 
           </div>
@@ -375,4 +381,4 @@
 
     </div>
   </ng-template>
-</div>
\ No newline at end of file
+</div>
diff --git a/ogWebconsole/src/app/components/groups/groups.component.ts b/ogWebconsole/src/app/components/groups/groups.component.ts
index ff484ad..ebb0b58 100644
--- a/ogWebconsole/src/app/components/groups/groups.component.ts
+++ b/ogWebconsole/src/app/components/groups/groups.component.ts
@@ -19,7 +19,7 @@ import { DeleteModalComponent } from '../../shared/delete_modal/delete-modal/del
 import { ClassroomViewDialogComponent } from './shared/classroom-view/classroom-view-modal';
 import { MatSort } from '@angular/material/sort';
 import { MatTableDataSource } from '@angular/material/table';
-import { MatPaginator } from '@angular/material/paginator';
+import {MatPaginator, PageEvent} from '@angular/material/paginator';
 import { CreateMultipleClientComponent } from "./shared/clients/create-multiple-client/create-multiple-client.component";
 import { SelectionModel } from "@angular/cdk/collections";
 
@@ -41,6 +41,10 @@ export class GroupsComponent implements OnInit, OnDestroy {
   organizationalUnits: UnidadOrganizativa[] = [];
   selectedUnidad: UnidadOrganizativa | null = null;
   selectedDetail: UnidadOrganizativa | null = null;
+  length: number = 0;
+  itemsPerPage: number = 10;
+  page: number = 0;
+  pageSizeOptions: number[] = [5, 10, 20, 40, 100];
   initialLoading: boolean = true;
   isLoadingClients: boolean = false;
   searchTerm = '';
@@ -334,11 +338,12 @@ export class GroupsComponent implements OnInit, OnDestroy {
   }
 
 
-  public fetchClientsForNode(node: TreeNode, selectedClientsBeforeEdit: string[] = []): void {
+  public fetchClientsForNode(node: any, selectedClientsBeforeEdit: string[] = []): void {
     this.isLoadingClients = true;
-    this.http.get<any>(`${this.baseUrl}/clients?organizationalUnit.id=${node.id}`).subscribe({
+    this.http.get<any>(`${this.baseUrl}/clients?organizationalUnit.id=${node.id}&page=${this.page + 1}&itemsPerPage=${this.itemsPerPage}`).subscribe({
       next: (response) => {
         this.selectedClients.data = response['hydra:member'];
+        this.length = response['hydra:totalItems'];
         this.arrayClients = this.selectedClients.data;
         this.hasClients = node.hasClients ?? false;
         this.isLoadingClients = false;
@@ -732,4 +737,11 @@ export class GroupsComponent implements OnInit, OnDestroy {
     inputElement.value = '';
     this.filterClients('');
   }
+
+  onPageChange(event: PageEvent): void {
+    this.page = event.pageIndex;
+    this.itemsPerPage = event.pageSize;
+    this.length = event.length;
+    this.fetchClientsForNode(this.selectedNode);
+  }
 }
diff --git a/ogWebconsole/src/app/components/ogdhcp/create-subnet/create-subnet.component.css b/ogWebconsole/src/app/components/ogdhcp/create-subnet/create-subnet.component.css
index 24cf3c0..c0a1dd5 100644
--- a/ogWebconsole/src/app/components/ogdhcp/create-subnet/create-subnet.component.css
+++ b/ogWebconsole/src/app/components/ogdhcp/create-subnet/create-subnet.component.css
@@ -2,10 +2,6 @@
   width: 100%;
 }
 
-form {
-  padding: 20px;
-}
-
 .spacing-container {
   margin-top: 20px;
   margin-bottom: 16px;
diff --git a/ogWebconsole/src/app/components/ogdhcp/create-subnet/create-subnet.component.html b/ogWebconsole/src/app/components/ogdhcp/create-subnet/create-subnet.component.html
index cbdfc10..9246697 100644
--- a/ogWebconsole/src/app/components/ogdhcp/create-subnet/create-subnet.component.html
+++ b/ogWebconsole/src/app/components/ogdhcp/create-subnet/create-subnet.component.html
@@ -1,38 +1,62 @@
 <h2 mat-dialog-title>{{ isEditMode ? 'Editar' : 'Añadir' }} subred</h2>
 
 <mat-dialog-content>
-  <div class="spacing-container">
-    <mat-form-field appearance="fill" class="full-width">
-      <mat-label>Nombre</mat-label>
-      <input matInput [(ngModel)]="name" placeholder="Nombre de la subred" required>
-    </mat-form-field>
-    <mat-form-field appearance="fill" class="full-width">
-      <mat-label>Netmask</mat-label>
-      <input matInput [(ngModel)]="netmask" placeholder="Netmask" required>
-    </mat-form-field>
-    <mat-form-field appearance="fill" class="full-width">
-      <mat-label>Dirección IP</mat-label>
-      <input matInput [(ngModel)]="ipAddress" placeholder="Dirección IP" required>
-    </mat-form-field>
+  <form [formGroup]="subnetForm">
+    <div class="spacing-container">
+      <mat-form-field appearance="fill" class="full-width">
+        <mat-label>Nombre</mat-label>
+        <input matInput formControlName="name" placeholder="Nombre de la subred" required>
+        <mat-error *ngIf="subnetForm.controls['name'].invalid">
+          El nombre de la subred es obligatorio.
+        </mat-error>
+      </mat-form-field>
 
-    <mat-divider></mat-divider>
-    <span class="step-title">Parámetros avanzados</span>
-    <mat-form-field appearance="fill" class="full-width">
-      <mat-label>Next Server</mat-label>
-      <input matInput [(ngModel)]="nextServer" placeholder="Next Server">
-    </mat-form-field>
-    <mat-form-field appearance="fill" class="full-width">
-      <mat-label>Boot File Name</mat-label>
-      <input matInput [(ngModel)]="bootFileName" placeholder="Boot File Name">
-    </mat-form-field>
-    <mat-form-field appearance="fill" class="full-width">
-      <mat-label>Router</mat-label>
-      <input matInput [(ngModel)]="router" placeholder="Router">
-    </mat-form-field>
-  </div>
+      <mat-form-field appearance="fill" class="full-width">
+        <mat-label>Netmask</mat-label>
+        <input matInput formControlName="netmask" placeholder="Netmask" required>
+        <mat-error *ngIf="subnetForm.controls['netmask'].invalid">
+          El netmask de la subred es obligatorio.
+        </mat-error>
+      </mat-form-field>
+
+      <mat-form-field appearance="fill" class="full-width">
+        <mat-label>Dirección IP</mat-label>
+        <input matInput formControlName="ipAddress" placeholder="Dirección IP" required>
+        <mat-error *ngIf="subnetForm.controls['ipAddress'].invalid">
+          La ip de la subred es obligatorio.
+        </mat-error>
+      </mat-form-field>
+
+      <mat-divider></mat-divider>
+      <span class="step-title">Parámetros avanzados</span>
+
+      <mat-form-field appearance="fill" class="full-width">
+        <mat-label>Next Server</mat-label>
+        <input matInput formControlName="nextServer" placeholder="Next Server">
+      </mat-form-field>
+
+      <mat-form-field appearance="fill" class="full-width">
+        <mat-label>Boot File Name</mat-label>
+        <input matInput formControlName="bootFileName" placeholder="Boot File Name">
+      </mat-form-field>
+
+      <mat-form-field appearance="fill" class="full-width">
+        <mat-label>Router</mat-label>
+        <input matInput formControlName="router" placeholder="Router">
+      </mat-form-field>
+
+      <mat-form-field appearance="fill" class="full-width">
+        <mat-label>DNS</mat-label>
+        <input matInput formControlName="dns" placeholder="DNS">
+        <mat-error *ngIf="subnetForm.controls['dns'].invalid">
+          Formato inválido. Introduzca direcciones IP separadas por comas.
+        </mat-error>
+      </mat-form-field>
+    </div>
+  </form>
 </mat-dialog-content>
 
 <mat-dialog-actions class="action-container">
   <button class="ordinary-button" (click)="onNoClick()">Cancelar</button>
-  <button class="submit-button" (click)="save()" cdkFocusInitial>Guardar</button>
+  <button class="submit-button" (click)="save()" [disabled]="subnetForm.invalid" cdkFocusInitial>Guardar</button>
 </mat-dialog-actions>
diff --git a/ogWebconsole/src/app/components/ogdhcp/create-subnet/create-subnet.component.ts b/ogWebconsole/src/app/components/ogdhcp/create-subnet/create-subnet.component.ts
index 3dfaea1..bf37323 100644
--- a/ogWebconsole/src/app/components/ogdhcp/create-subnet/create-subnet.component.ts
+++ b/ogWebconsole/src/app/components/ogdhcp/create-subnet/create-subnet.component.ts
@@ -1,8 +1,8 @@
 import { HttpClient } from '@angular/common/http';
 import { Component, Inject, OnInit } from '@angular/core';
-import {MAT_DIALOG_DATA, MatDialog, MatDialogRef} from '@angular/material/dialog';
+import { MAT_DIALOG_DATA, MatDialog, MatDialogRef } from '@angular/material/dialog';
+import { FormBuilder, FormGroup, Validators } from '@angular/forms';
 import { ToastrService } from 'ngx-toastr';
-import {DeleteModalComponent} from "../../../shared/delete_modal/delete-modal/delete-modal.component";
 
 @Component({
   selector: 'app-create-subnet',
@@ -11,23 +11,28 @@ import {DeleteModalComponent} from "../../../shared/delete_modal/delete-modal/de
 })
 export class CreateSubnetComponent implements OnInit {
   baseUrl: string = import.meta.env.NG_APP_BASE_API_URL;
-  subnetId: string | null = null;
-  name: string = '';
-  netmask: string = '';
-  ipAddress: string = '';
-  nextServer: string = '';
-  bootFileName: string = '';
-  router: string = '';
-  serverId: number = 0;
+  subnetForm: FormGroup;
   isEditMode: boolean = false;
+  subnetId: string | null = null;
 
   constructor(
     private toastService: ToastrService,
     private http: HttpClient,
+    private fb: FormBuilder,
     public dialogRef: MatDialogRef<CreateSubnetComponent>,
     public dialog: MatDialog,
     @Inject(MAT_DIALOG_DATA) public data: any
-  ) { }
+  ) {
+    this.subnetForm = this.fb.group({
+      name: ['', Validators.required],
+      netmask: ['', Validators.required],
+      ipAddress: ['', Validators.required],
+      router: [''],
+      dns: ['', Validators.pattern(/^(((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?),)*((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$/)],
+      nextServer: [''],
+      bootFileName: ['']
+    });
+  }
 
   ngOnInit(): void {
     if (this.data) {
@@ -38,13 +43,15 @@ export class CreateSubnetComponent implements OnInit {
 
   loadData() {
     this.subnetId = this.data.uuid;
-    this.name = this.data.name;
-    this.netmask = this.data.netmask;
-    this.ipAddress = this.data.ipAddress;
-    this.nextServer = this.data.nextServer;
-    this.bootFileName = this.data.bootFileName;
-    this.router = this.data.router;
-    this.serverId = this.data.serverId;
+    this.subnetForm.patchValue({
+      name: this.data.name,
+      netmask: this.data.netmask,
+      dns: this.data.dns,
+      ipAddress: this.data.ipAddress,
+      nextServer: this.data.nextServer,
+      bootFileName: this.data.bootFileName,
+      router: this.data.router
+    });
   }
 
   onNoClick(): void {
@@ -52,37 +59,33 @@ export class CreateSubnetComponent implements OnInit {
   }
 
   save(): void {
-    const payload = {
-      name: this.name,
-      netmask: this.netmask,
-      ipAddress: this.ipAddress,
-      router: this.router || null,
-      nextServer: this.nextServer || null,
-      bootFileName: this.bootFileName || null
-    };
+    if (this.subnetForm.invalid) {
+      this.toastService.error('Por favor, revisa los campos del formulario');
+      return;
+    }
 
-    if (!this.data){
-      this.http.post(`${this.baseUrl}/subnets`, payload)
-        .subscribe({
-          next: (response) => {
-            this.toastService.success('Configuración de red añadida exitosamente');
-            this.dialogRef.close();
-          },
-          error: (error) => {
-            this.toastService.error(error.error['hydra:description']);
-          }
-        });
+    const payload = this.subnetForm.value;
+
+    if (!this.isEditMode) {
+      this.http.post(`${this.baseUrl}/subnets`, payload).subscribe({
+        next: () => {
+          this.toastService.success('Configuración de red añadida exitosamente');
+          this.dialogRef.close();
+        },
+        error: (error) => {
+          this.toastService.error(error.error['hydra:description']);
+        }
+      });
     } else {
-      this.http.patch(`${this.baseUrl}/subnets/${this.subnetId}`, payload)
-        .subscribe({
-          next: (response) => {
-            this.toastService.success('Configuración de red actualizada exitosamente');
-            this.dialogRef.close();
-          },
-          error: (error) => {
-            this.toastService.error(error.error['hydra:description']);
-          }
-        });
+      this.http.patch(`${this.baseUrl}/subnets/${this.subnetId}`, payload).subscribe({
+        next: () => {
+          this.toastService.success('Configuración de red actualizada exitosamente');
+          this.dialogRef.close();
+        },
+        error: (error) => {
+          this.toastService.error(error.error['hydra:description']);
+        }
+      });
     }
   }
 }
diff --git a/ogWebconsole/src/app/components/ogdhcp/og-dhcp-subnets.component.ts b/ogWebconsole/src/app/components/ogdhcp/og-dhcp-subnets.component.ts
index 13d6396..4932267 100644
--- a/ogWebconsole/src/app/components/ogdhcp/og-dhcp-subnets.component.ts
+++ b/ogWebconsole/src/app/components/ogdhcp/og-dhcp-subnets.component.ts
@@ -66,10 +66,8 @@ export class OgDhcpSubnetsComponent implements OnInit {
 
   ngOnInit() {
     this.loading = true;
-    this.loadSubnets();
     this.loadAlert()
     this.syncSubnets()
-    this.loading = false;
   }
 
   loadSubnets() {
@@ -93,7 +91,9 @@ export class OgDhcpSubnetsComponent implements OnInit {
       .subscribe(response => {
         this.toastService.success('Sincronización con componente DHCP exitosa');
         this.loadSubnets()
+        this.loading = false;
       }, error => {
+        this.loading = false;
         this.toastService.error('Error al sincronizar');
       });
   }