Make sure that the following ports are open to allow a hardware load balancer: 1  On a Registrar: 5061, 5063 (for SIP connections) 2  On Web Services: 80 (HTTP) and 443 (HTTPS) 3  On a hardware load balancer: 444 (for HTTPS between server components), and make sure that source network address translation (SNAT) is allowed through.
Exercising without eating first can lead to low blood glucose, which can interfere with your brain function. When you eat, glucose levels in your circulating blood rise and are available to travel to your muscle cells. Glucose is also available as glycogen stored in your muscles.
Ideally, you should have a light snack that is high in complex carbohydrates (like a muffin, or a granola bar), 2 hours before exercising. After exercising, you can eat a full meal. Exercising on an empty stomach causes your blood sugar to plummet, so you become exhausted halfway through your workout and can't finish.