diff --git a/Limelight/Network/PairManager.m b/Limelight/Network/PairManager.m
index c047019..41d5906 100644
--- a/Limelight/Network/PairManager.m
+++ b/Limelight/Network/PairManager.m
@@ -39,7 +39,7 @@
     }
     if ([serverInfoResp isStatusOk]) {
         if ([[serverInfoResp getStringTag:@"state"] hasSuffix:@"_SERVER_BUSY"]) {
-            [_callback pairFailed:@"You must stop streaming before attempting to pair."];
+            [_callback pairFailed:@"You cannot pair while a previous session is still running on the host PC. Quit any running games or reboot the host PC, then try pairing again."];
         } else if (![[serverInfoResp getStringTag:@"PairStatus"] isEqual:@"1"]) {
             NSString* appversion = [serverInfoResp getStringTag:@"appversion"];
             if (appversion == nil) {
diff --git a/Limelight/ViewControllers/MainFrameViewController.m b/Limelight/ViewControllers/MainFrameViewController.m
index 3f8a965..c2305d2 100644
--- a/Limelight/ViewControllers/MainFrameViewController.m
+++ b/Limelight/ViewControllers/MainFrameViewController.m
@@ -59,7 +59,7 @@ static NSMutableSet* hostList;
 - (void)showPIN:(NSString *)PIN {
     dispatch_async(dispatch_get_main_queue(), ^{
         self->_pairAlert = [UIAlertController alertControllerWithTitle:@"Pairing"
-                                                               message:[NSString stringWithFormat:@"Enter the following PIN on the host machine: %@", PIN]
+                                                               message:[NSString stringWithFormat:@"Enter the following PIN on the host machine: %@\n\nNote: Navigating away from Moonlight before entering the PIN on your PC may cause pairing to fail.", PIN]
                                                         preferredStyle:UIAlertControllerStyleAlert];
         [self->_pairAlert addAction:[UIAlertAction actionWithTitle:@"Cancel" style:UIAlertActionStyleDestructive handler:^(UIAlertAction* action) {
             self->_pairAlert = nil;