diff --git a/daemon/exercise.go b/daemon/exercise.go
index c717c672..b6e5551d 100644
--- a/daemon/exercise.go
+++ b/daemon/exercise.go
@@ -10,7 +10,6 @@ import (
 
 	pb "github.com/aau-network-security/haaukins/daemon/proto"
 	eproto "github.com/aau-network-security/haaukins/exercise/ex-proto"
-	"github.com/aau-network-security/haaukins/lab"
 	"github.com/aau-network-security/haaukins/store"
 	storeProto "github.com/aau-network-security/haaukins/store/proto"
 	"github.com/golang/protobuf/jsonpb"
@@ -280,17 +279,20 @@ func (d *daemon) AddChallenge(req *pb.AddChallengeRequest, srv pb.Daemon_AddChal
 		}
 	}
 
+	ev.PauseSignup(true)
 	var addChalError error
-	var lb interface{}
-	sendBackLab := make(chan lab.Lab)
-	go func() {
-		lb = <-ev.GetHub().Queue()
-		if err := lb.(lab.Lab).AddChallenge(ctx, exers...); err != nil {
-			addChalError = err
-		}
-		sendBackLab <- lb.(lab.Lab)
-		ev.GetHub().Update(sendBackLab)
-	}()
+
+	for _, lb := range ev.GetHub().Labs() {
+		waitGroup.Add(1)
+		go func() {
+			if err := lb.AddChallenge(ctx, exers...); err != nil {
+				addChalError = err
+			}
+			waitGroup.Done()
+		}()
+		waitGroup.Wait()
+	}
+	ev.PauseSignup(false)
 
 	frontendData := ev.GetFrontendData()
 	for tid, l := range ev.GetAssignedLabs() {
diff --git a/lab/hub.go b/lab/hub.go
index 5a277c93..49d88d07 100644
--- a/lab/hub.go
+++ b/lab/hub.go
@@ -24,6 +24,7 @@ type Hub interface {
 	Suspend(context.Context) error
 	Resume(context.Context) error
 	Update(labTag <-chan Lab)
+	Labs() map[string]Lab
 	UpdateExercises(exercises []store.Exercise)
 }
 
@@ -212,3 +213,7 @@ func (h *hub) Resume(ctx context.Context) error {
 
 	return resumeError
 }
+
+func (h *hub) Labs() map[string]Lab {
+	return h.labs
+}
diff --git a/svcs/amigo/amigo.go b/svcs/amigo/amigo.go
index 4da40ba0..bf362320 100644
--- a/svcs/amigo/amigo.go
+++ b/svcs/amigo/amigo.go
@@ -67,6 +67,7 @@ type siteInfo struct {
 	Hosts         []Hosts
 	Notification  Notification
 	LabSubnet     string
+	SignupPaused  bool // this is used when add challenge is executed in the platform
 }
 
 type team struct {
@@ -134,6 +135,10 @@ func (am *Amigo) SetNotification(n Notification) {
 	am.globalInfo.Notification = n
 }
 
+func (am *Amigo) PauseSignup(pause bool) {
+	am.globalInfo.SignupPaused = pause
+}
+
 func (am *Amigo) getSiteInfo(w http.ResponseWriter, r *http.Request) siteInfo {
 	info := am.globalInfo
 
diff --git a/svcs/amigo/resources/private/signup.tmpl.html b/svcs/amigo/resources/private/signup.tmpl.html
index f53c47c1..f74b27f8 100644
--- a/svcs/amigo/resources/private/signup.tmpl.html
+++ b/svcs/amigo/resources/private/signup.tmpl.html
@@ -4,56 +4,63 @@
 		<div class="row h-100">
 			<div class="col" style="min-height: 800px!important; height: 100vh">
 				<div class="login-content h-100">
-					<form class="login-form" method="post" action="/signup">
-						<h4>Create a Team</h4>
-						<div class="input-div">
-							<div class="input-div-icon">
-								<i class="fas fa-user"></i>
-							</div>
-							<div class="input-div-input">
-								<h5>Team Name</h5>
-								<input class="input" name="team-name" type="text" maxlength="15">
-							</div>
-						</div>
-						<div class="input-div">
-							<div class="input-div-icon">
-								<i class="fas fa-lock"></i>
-							</div>
-							<div class="input-div-input">
-								<h5>Password</h5>
-								<input class="input" name="password" type="password">
-							</div>
-						</div>
-						<div class="input-div mb-2">
-							<div class="input-div-icon">
-								<i class="fas fa-lock"></i>
+					{{ if .SignupPaused }}
+						<h4>
+							Signup is temporarily paused, new challenges are processing.
+							Check few minutes later to sign up.
+						</h4>
+					{{ else }}
+						<form class="login-form" method="post" action="/signup">
+							<h4>Create a Team</h4>
+							<div class="input-div">
+								<div class="input-div-icon">
+									<i class="fas fa-user"></i>
+								</div>
+								<div class="input-div-input">
+									<h5>Team Name</h5>
+									<input class="input" name="team-name" type="text" maxlength="15">
+								</div>
 							</div>
-							<div class="input-div-input">
-								<h5>Repeat Password</h5>
-								<input class="input" name="password-repeat" type="password">
+							<div class="input-div">
+								<div class="input-div-icon">
+									<i class="fas fa-lock"></i>
+								</div>
+								<div class="input-div-input">
+									<h5>Password</h5>
+									<input class="input" name="password" type="password">
+								</div>
 							</div>
-						</div>
-						{{ if .IsSecretEvent }}
 							<div class="input-div mb-2">
 								<div class="input-div-icon">
-									<i class="fas fa-user-secret"></i>
+									<i class="fas fa-lock"></i>
 								</div>
 								<div class="input-div-input">
-									<h5>Secret Key</h5>
-									<input class="input" name="secret-event-key" type="password" maxlength="20" minlength="1">
+									<h5>Repeat Password</h5>
+									<input class="input" name="password-repeat" type="password">
 								</div>
 							</div>
-						{{ end }}
-						<div class="g-recaptcha ml-0 ml-sm-4" data-sitekey="6LduW74ZAAAAAI9eDk0Btd_fbjegoXOfCSR-kLSo"></div>
-						<input type="submit" class="btn btn-login mt-3" value="Login">
-							{{ with .Content }}
-								{{ if .SignupError }}
-									<div class="mt-2 text-danger">
-										{{ .SignupError }}
+							{{ if .IsSecretEvent }}
+								<div class="input-div mb-2">
+									<div class="input-div-icon">
+										<i class="fas fa-user-secret"></i>
 									</div>
-								{{ end }}
+									<div class="input-div-input">
+										<h5>Secret Key</h5>
+										<input class="input" name="secret-event-key" type="password" maxlength="20" minlength="1">
+									</div>
+								</div>
 							{{ end }}
-					</form>
+							<div class="g-recaptcha ml-0 ml-sm-4" data-sitekey="6LduW74ZAAAAAI9eDk0Btd_fbjegoXOfCSR-kLSo"></div>
+							<input type="submit" class="btn btn-login mt-3" value="Login">
+								{{ with .Content }}
+									{{ if .SignupError }}
+										<div class="mt-2 text-danger">
+											{{ .SignupError }}
+										</div>
+									{{ end }}
+								{{ end }}
+						</form>
+					{{ end }}
 				</div>
 			</div>
 			<div class="col myd-none" style="min-height: 800px!important;">
diff --git a/svcs/guacamole/event.go b/svcs/guacamole/event.go
index f2262137..722d0737 100755
--- a/svcs/guacamole/event.go
+++ b/svcs/guacamole/event.go
@@ -214,7 +214,7 @@ type Event interface {
 	Finish(string)
 	AssignLab(*store.Team, lab.Lab) error
 	Handler() http.Handler
-
+	PauseSignup(bool)
 	AddNotification(message string, loggedInUsers bool) error
 	SetStatus(int32)
 	GetStatus() int32
@@ -322,6 +322,10 @@ func (ev *event) AddNotification(message string, loggedInUsers bool) error {
 	return nil
 }
 
+func (ev *event) PauseSignup(pause bool) {
+	ev.amigo.PauseSignup(pause)
+}
+
 func (ev *event) GetFrontendData() *amigo.FrontendData {
 	return ev.amigo.FrontEndData
 }