diff --git a/client/src/main/java/ctbrec/ui/sites/bonga/BongaCamsSiteUi.java b/client/src/main/java/ctbrec/ui/sites/bonga/BongaCamsSiteUi.java
index 328528bc..8e123696 100644
--- a/client/src/main/java/ctbrec/ui/sites/bonga/BongaCamsSiteUi.java
+++ b/client/src/main/java/ctbrec/ui/sites/bonga/BongaCamsSiteUi.java
@@ -44,7 +44,7 @@ public class BongaCamsSiteUi implements SiteUI {
     }
 
     @Override
-    public boolean login() throws IOException {
+    public synchronized boolean login() throws IOException {
         boolean automaticLogin = bongaCams.login();
         if(automaticLogin) {
             return true;
diff --git a/client/src/main/java/ctbrec/ui/sites/cam4/Cam4SiteUi.java b/client/src/main/java/ctbrec/ui/sites/cam4/Cam4SiteUi.java
index 66c4d776..8e61b411 100644
--- a/client/src/main/java/ctbrec/ui/sites/cam4/Cam4SiteUi.java
+++ b/client/src/main/java/ctbrec/ui/sites/cam4/Cam4SiteUi.java
@@ -44,7 +44,7 @@ public class Cam4SiteUi implements SiteUI {
     }
 
     @Override
-    public boolean login() throws IOException {
+    public synchronized boolean login() throws IOException {
         boolean automaticLogin = cam4.login();
         if(automaticLogin) {
             return true;
diff --git a/client/src/main/java/ctbrec/ui/sites/camsoda/CamsodaSiteUi.java b/client/src/main/java/ctbrec/ui/sites/camsoda/CamsodaSiteUi.java
index a86f72e3..af1be6ab 100644
--- a/client/src/main/java/ctbrec/ui/sites/camsoda/CamsodaSiteUi.java
+++ b/client/src/main/java/ctbrec/ui/sites/camsoda/CamsodaSiteUi.java
@@ -45,7 +45,7 @@ public class CamsodaSiteUi implements SiteUI {
     }
 
     @Override
-    public boolean login() throws IOException {
+    public synchronized boolean login() throws IOException {
         boolean automaticLogin = camsoda.login();
         return automaticLogin;
     }
diff --git a/client/src/main/java/ctbrec/ui/sites/chaturbate/ChaturbateSiteUi.java b/client/src/main/java/ctbrec/ui/sites/chaturbate/ChaturbateSiteUi.java
index fdca9ec5..575ca10f 100644
--- a/client/src/main/java/ctbrec/ui/sites/chaturbate/ChaturbateSiteUi.java
+++ b/client/src/main/java/ctbrec/ui/sites/chaturbate/ChaturbateSiteUi.java
@@ -30,7 +30,7 @@ public class ChaturbateSiteUi implements SiteUI {
     }
 
     @Override
-    public boolean login() throws IOException {
+    public synchronized boolean login() throws IOException {
         return chaturbate.login();
     }
 
diff --git a/client/src/main/java/ctbrec/ui/sites/myfreecams/MyFreeCamsSiteUi.java b/client/src/main/java/ctbrec/ui/sites/myfreecams/MyFreeCamsSiteUi.java
index f98528ed..59bb5829 100644
--- a/client/src/main/java/ctbrec/ui/sites/myfreecams/MyFreeCamsSiteUi.java
+++ b/client/src/main/java/ctbrec/ui/sites/myfreecams/MyFreeCamsSiteUi.java
@@ -30,7 +30,7 @@ public class MyFreeCamsSiteUi implements SiteUI {
     }
 
     @Override
-    public boolean login() throws IOException {
+    public synchronized boolean login() throws IOException {
         return myFreeCams.login();
     }
 
diff --git a/common/src/main/java/ctbrec/sites/bonga/BongaCams.java b/common/src/main/java/ctbrec/sites/bonga/BongaCams.java
index fc847912..573c4d67 100644
--- a/common/src/main/java/ctbrec/sites/bonga/BongaCams.java
+++ b/common/src/main/java/ctbrec/sites/bonga/BongaCams.java
@@ -94,7 +94,7 @@ public class BongaCams extends AbstractSite {
     }
 
     @Override
-    public boolean login() throws IOException {
+    public synchronized boolean login() throws IOException {
         return credentialsAvailable() && getHttpClient().login();
     }
 
diff --git a/common/src/main/java/ctbrec/sites/cam4/Cam4.java b/common/src/main/java/ctbrec/sites/cam4/Cam4.java
index 8c3907a0..62a1cea2 100644
--- a/common/src/main/java/ctbrec/sites/cam4/Cam4.java
+++ b/common/src/main/java/ctbrec/sites/cam4/Cam4.java
@@ -64,7 +64,7 @@ public class Cam4 extends AbstractSite {
     }
 
     @Override
-    public boolean login() throws IOException {
+    public synchronized boolean login() throws IOException {
         return credentialsAvailable() && getHttpClient().login();
     }
 
diff --git a/common/src/main/java/ctbrec/sites/camsoda/Camsoda.java b/common/src/main/java/ctbrec/sites/camsoda/Camsoda.java
index 3008f14b..10a12117 100644
--- a/common/src/main/java/ctbrec/sites/camsoda/Camsoda.java
+++ b/common/src/main/java/ctbrec/sites/camsoda/Camsoda.java
@@ -82,7 +82,7 @@ public class Camsoda extends AbstractSite {
     }
 
     @Override
-    public boolean login() throws IOException {
+    public synchronized boolean login() throws IOException {
         return credentialsAvailable() && getHttpClient().login();
     }
 
diff --git a/common/src/main/java/ctbrec/sites/chaturbate/Chaturbate.java b/common/src/main/java/ctbrec/sites/chaturbate/Chaturbate.java
index 56dffb1b..d31b7983 100644
--- a/common/src/main/java/ctbrec/sites/chaturbate/Chaturbate.java
+++ b/common/src/main/java/ctbrec/sites/chaturbate/Chaturbate.java
@@ -105,7 +105,7 @@ public class Chaturbate extends AbstractSite {
     }
 
     @Override
-    public boolean login() throws IOException {
+    public synchronized boolean login() throws IOException {
         return credentialsAvailable() && getHttpClient().login();
     }
 
diff --git a/common/src/main/java/ctbrec/sites/mfc/MyFreeCams.java b/common/src/main/java/ctbrec/sites/mfc/MyFreeCams.java
index 315d040c..787fac8e 100644
--- a/common/src/main/java/ctbrec/sites/mfc/MyFreeCams.java
+++ b/common/src/main/java/ctbrec/sites/mfc/MyFreeCams.java
@@ -31,7 +31,7 @@ public class MyFreeCams extends AbstractSite {
     }
 
     @Override
-    public boolean login() throws IOException {
+    public synchronized boolean login() throws IOException {
         return credentialsAvailable() && getHttpClient().login();
     }