Hi there! I understand that you're having trouble with the Lotsa Slots app not working when connected to a guest WiFi network. Let's get a bit more detail to narrow down the issue:

- When you say "not working," do you mean the app won’t open at all, it crashes, or it fails to connect or load properly?
- Are you able to use other internet-dependent apps or websites fine on that same guest WiFi?
- Have you noticed if the app works well when you use a different WiFi or mobile network?

This info will help me pinpoint the problem better. Meanwhile, I can guide you through some quick checks that often help with WiFi-related issues in apps like Lotsa Slots:

1. Check the guest WiFi's restrictions: Sometimes guest networks limit certain services or ports. You might want to check with the network admin if this applies.

2. Forget and reconnect to the guest WiFi: On your Windows device, go to Settings > Network & Internet > Wi-Fi > Manage known networks, select the guest WiFi, and click "Forget." Then reconnect freshly.

3. Force stop and restart the app: On your device, close Lotsa Slots completely and relaunch it to refresh its connection1.

4. Clear app cache if possible: This helps if there's corrupted temporary data causing connection hiccups2.

5. Ensure your device and app are up to date: Updates can fix bugs or compatibility problems.

Let me know what you find or if any of these steps help. If it still doesn't work, we can dig deeper, like verifying network settings or potential firewall blocks on the guest WiFi.