diff --git a/runelite-api/src/main/java/net/runelite/api/Client.java b/runelite-api/src/main/java/net/runelite/api/Client.java
index c3c93a6aa6..de43f83b3b 100644
--- a/runelite-api/src/main/java/net/runelite/api/Client.java
+++ b/runelite-api/src/main/java/net/runelite/api/Client.java
@@ -1831,8 +1831,6 @@ public interface Client extends GameShell
 	 */
 	void removeFriend(String name);
 
-	BigInteger getModulus();
-
 	void setModulus(BigInteger modulus);
 
 	/**
diff --git a/runelite-client/src/main/java/net/runelite/client/plugins/privateserver/PrivateServerPlugin.java b/runelite-client/src/main/java/net/runelite/client/plugins/privateserver/PrivateServerPlugin.java
index ca074fd523..b3b19c1a42 100644
--- a/runelite-client/src/main/java/net/runelite/client/plugins/privateserver/PrivateServerPlugin.java
+++ b/runelite-client/src/main/java/net/runelite/client/plugins/privateserver/PrivateServerPlugin.java
@@ -70,24 +70,24 @@ public class PrivateServerPlugin extends Plugin
 	@Override
 	protected void startUp() throws Exception
 	{
-		if (RuneLite.allowPrivateServer)
+		if (!RuneLite.allowPrivateServer)
 		{
-			updateConfig();
-			addSubscriptions();
+			return;
 		}
-		else
+
+		if (!config.modulus().equals(""))
 		{
-			client.setModulus(new BigInteger("83ff79a3e258b99ead1a70e1049883e78e513c4cdec538d8da9483879a9f81689c0c7d146d7b82b52d05cf26132b1cda5930eeef894e4ccf3d41eebc3aabe54598c4ca48eb5a31d736bfeea17875a35558b9e3fcd4aebe2a9cc970312a477771b36e173dc2ece6001ab895c553e2770de40073ea278026f36961c94428d8d7db", 16));
+			client.setModulus(new BigInteger(config.modulus(), 16));
 		}
+
+		addSubscriptions();
 	}
 
 	@Override
 	protected void shutDown() throws Exception
 	{
-		if (RuneLite.allowPrivateServer)
-		{
-			eventBus.unregister(this);
-		}
+		client.setModulus(null);
+		eventBus.unregister(this);
 	}
 
 	private void addSubscriptions()
@@ -97,12 +97,19 @@ public class PrivateServerPlugin extends Plugin
 
 	private void onConfigChanged(ConfigChanged event)
 	{
-		if (event.getGroup().equals("privateserver") && event.getKey().equals("modulus"))
+		if (!event.getGroup().equals("privateserver"))
 		{
-			client.setModulus(new BigInteger(config.modulus(), 16));
+			return;
 		}
 
-		if (event.getGroup().equals("privateserver") && event.getKey().equals("codebase"))
+		if (event.getKey().equals("modulus"))
+		{
+			if (RuneLite.allowPrivateServer && !config.modulus().equals(""))
+			{
+				client.setModulus(new BigInteger(config.modulus(), 16));
+			}
+		}
+		else if (event.getKey().equals("codebase"))
 		{
 			StringFileUtils.writeStringToFile(RuneLite.RUNELITE_DIR + "/codebase", config.codebase());
 			String message = "Client restart required after codebase change\n";
@@ -110,12 +117,4 @@ public class PrivateServerPlugin extends Plugin
 				JOptionPane.WARNING_MESSAGE);
 		}
 	}
-
-	private void updateConfig()
-	{
-		if (!config.modulus().equals(""))
-		{
-			client.setModulus(new BigInteger(config.modulus(), 16));
-		}
-	}
 }
diff --git a/runelite-mixins/src/main/java/net/runelite/mixins/RSBufferMixin.java b/runelite-mixins/src/main/java/net/runelite/mixins/RSBufferMixin.java
index 8d6e946b7f..a7fe725888 100644
--- a/runelite-mixins/src/main/java/net/runelite/mixins/RSBufferMixin.java
+++ b/runelite-mixins/src/main/java/net/runelite/mixins/RSBufferMixin.java
@@ -39,17 +39,20 @@ public abstract class RSBufferMixin implements RSBuffer
 	@Shadow("client")
 	private static RSClient client;
 
-	@Inject
-	private static BigInteger exponent = new BigInteger("10001", 16);
+	@Shadow("modulus")
+	private static BigInteger modulus;
 
 	@Copy("encryptRsa")
-	public void rs$encryptRsa(BigInteger var1, BigInteger var2)
-	{
-	}
+	abstract void rs$encryptRsa(BigInteger var1, BigInteger var2);
 
 	@Replace("encryptRsa")
-	public void rl$encryptRsa(BigInteger var1, BigInteger var2)
+	public void rl$encryptRsa(BigInteger exp, BigInteger mod)
 	{
-		rs$encryptRsa(exponent, client.getModulus());
+		if (modulus != null)
+		{
+			mod = modulus;
+		}
+
+		rs$encryptRsa(exp, mod);
 	}
 }
\ No newline at end of file
diff --git a/runelite-mixins/src/main/java/net/runelite/mixins/RSClientMixin.java b/runelite-mixins/src/main/java/net/runelite/mixins/RSClientMixin.java
index ef08769073..16602cb4ea 100644
--- a/runelite-mixins/src/main/java/net/runelite/mixins/RSClientMixin.java
+++ b/runelite-mixins/src/main/java/net/runelite/mixins/RSClientMixin.java
@@ -1752,20 +1752,13 @@ public abstract class RSClientMixin implements RSClient
 	}
 
 	@Inject
-	BigInteger modulus = new BigInteger("8ffe6122bc1531a9d3909c2cefb420d9099dcda7494cf98fcd054d7eac1f32c03cc1cff0955965d35dfb6bd322c5e9201941edfa6f26cfff45524daf4c6b09c8a121f3b0262443ca7164bbad436420e7fd23d9d2b74f228f68f961563e337b95772bf046cf05bb699549141325085c55e5d44ea15e3c7f17dd6c03d521f963f7", 16);
-
-	@Inject
-	@Override
-	public BigInteger getModulus()
-	{
-		return modulus;
-	}
+	private static BigInteger modulus;
 
 	@Inject
 	@Override
 	public void setModulus(BigInteger modulus)
 	{
-		this.modulus = modulus;
+		RSClientMixin.modulus = modulus;
 	}
 
 	@Copy("forceDisconnect")
diff --git a/runescape-api/src/main/java/net/runelite/rs/api/RSClient.java b/runescape-api/src/main/java/net/runelite/rs/api/RSClient.java
index 03e095d16a..b755d8ef93 100644
--- a/runescape-api/src/main/java/net/runelite/rs/api/RSClient.java
+++ b/runescape-api/src/main/java/net/runelite/rs/api/RSClient.java
@@ -1087,8 +1087,6 @@ public interface RSClient extends RSGameShell, Client
 	@Override
 	RSSprite[] getCrossSprites();
 
-	BigInteger getModulus();
-
 	void setModulus(BigInteger modulus);
 
 	@Import("ItemDefinition_fileCount")