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.
Maybe you could start with smaller bouts of exercise instead of 50 minutes. Start walking for 5 minutes per day and as you feel stronger increase to 10 and so on. Make sure you eat something about 30 minutes before exercising, like a banana, yogurt or granola bar. If you are low on glycogen (stores of carbohydrates in muscle), it could increase your tiredness after exercise. If you continue to feel tired without a good reason, visit your healthcare provider for a full blood work-up. Certain nutrient deficiencies, like anemia, can also make you tired.