diff --git a/qw/source/cl_cam.c b/qw/source/cl_cam.c
index 6e8f65704..52c695ceb 100644
--- a/qw/source/cl_cam.c
+++ b/qw/source/cl_cam.c
@@ -172,8 +172,10 @@ void
 Cam_Unlock (void)
 {
 	if (autocam) {
-		MSG_WriteByte (&cls.netchan.message, clc_stringcmd);
-		MSG_WriteString (&cls.netchan.message, "ptrack");
+		if (!cls.demoplayback) {
+			MSG_WriteByte (&cls.netchan.message, clc_stringcmd);
+			MSG_WriteString (&cls.netchan.message, "ptrack");
+		}
 		autocam = CAM_NONE;
 		locked = false;
 		Sbar_Changed ();
@@ -469,8 +471,10 @@ Cam_Track (usercmd_t *cmd)
 		len = VectorLength (vec);
 		cmd->forwardmove = cmd->sidemove = cmd->upmove = 0;
 		if (len > 16) {					// close enough?
-			MSG_WriteByte (&cls.netchan.message, clc_tmove);
-			MSG_WriteCoordV (&cls.netchan.message, desired_position);
+			if (!cls.demoplayback) {
+				MSG_WriteByte (&cls.netchan.message, clc_tmove);
+				MSG_WriteCoordV (&cls.netchan.message, desired_position);
+			}
 		}
 		// move there locally immediately
 		VectorCopy (desired_position, self->origin);
diff --git a/qw/source/cl_cvar.c b/qw/source/cl_cvar.c
index 21e107318..d4aa1de02 100644
--- a/qw/source/cl_cvar.c
+++ b/qw/source/cl_cvar.c
@@ -51,7 +51,7 @@ Cvar_Info (cvar_t *var)
 		Info_SetValueForKey (cls.userinfo, var->name, var->string,
 							 ((!strequal(var->name, "name"))
 							  |(strequal(var->name, "team") << 1)));
-		if (cls.state >= ca_connected) {
+		if (cls.state >= ca_connected && !cls.demoplayback) {
 			MSG_WriteByte (&cls.netchan.message, clc_stringcmd);
 			MSG_WriteString (&cls.netchan.message,
 							 va ("setinfo \"%s\" \"%s\"\n", var->name,
diff --git a/qw/source/cl_main.c b/qw/source/cl_main.c
index 474ead80d..d9ad11448 100644
--- a/qw/source/cl_main.c
+++ b/qw/source/cl_main.c
@@ -853,6 +853,8 @@ CL_Reconnect_f (void)
 {
 	if (cls.download)					// don't change when downloading
 		return;
+	if (cls.demoplayback)
+		return;
 
 	S_StopAllSounds (true);
 
@@ -1091,7 +1093,7 @@ CL_ReadPackets (void)
 void
 CL_Download_f (void)
 {
-	if (cls.state == ca_disconnected) {
+	if (cls.state == ca_disconnected || cls.demoplayback) {
 		Con_Printf ("Must be connected.\n");
 		return;
 	}
diff --git a/qw/source/cl_parse.c b/qw/source/cl_parse.c
index 3d8c19257..e50033649 100644
--- a/qw/source/cl_parse.c
+++ b/qw/source/cl_parse.c
@@ -807,9 +807,11 @@ CL_ParseModellist (void)
 	n = MSG_ReadByte (net_message);
 
 	if (n) {
-		MSG_WriteByte (&cls.netchan.message, clc_stringcmd);
-		MSG_WriteString (&cls.netchan.message,
-						 va (modellist_name, cl.servercount, n));
+		if (!cls.demoplayback) {
+			MSG_WriteByte (&cls.netchan.message, clc_stringcmd);
+			MSG_WriteString (&cls.netchan.message,
+							 va (modellist_name, cl.servercount, n));
+		}
 		return;
 	}
 
diff --git a/qw/source/sbar.c b/qw/source/sbar.c
index 4e921346f..34e7f87a4 100644
--- a/qw/source/sbar.c
+++ b/qw/source/sbar.c
@@ -1588,8 +1588,10 @@ Sbar_DeathmatchOverlay (int start)
 	// request new ping times every two second
 	if (realtime - cl.last_ping_request > 2.0) {
 		cl.last_ping_request = realtime;
-		MSG_WriteByte (&cls.netchan.message, clc_stringcmd);
-		SZ_Print (&cls.netchan.message, "pings");
+		if (!cls.demoplayback) {
+			MSG_WriteByte (&cls.netchan.message, clc_stringcmd);
+			SZ_Print (&cls.netchan.message, "pings");
+		}
 	}
 
 	scr_copyeverything = 1;