Training a Dachshund to stop barking excessively requires patience, consistency, and positive reinforcement. Here’s what you can do to help your Dachshund learn to be quieter:

1. Determine the cause of the excessive barking: Dachshunds bark for various reasons such as boredom, fear, anxiety, or excitement. Understanding why your Dachshund is barking excessively will help you to address the root of the problem and find an appropriate solution.
2. Teach a “quiet” command: Teaching your Dachshund a “quiet” command can be an effective way to stop excessive barking. To do this, hold a treat in front of your Dachshund’s nose and say “quiet.” When your Dachshund stops barking, give him the treat. Repeat this several times until your Dachshund associates the “quiet” command with stopping barking and receiving a treat.
3. Provide plenty of exercise and mental stimulation: Dachshunds are energetic dogs that need plenty of exercise and mental stimulation. Make sure your Dachshund is getting enough physical activity and engage him in interactive games and puzzles.
4. Address anxiety and fear: If your Dachshund is barking excessively due to anxiety or fear, it’s important to address these underlying issues. You may need to consult with a professional dog trainer or behaviorist to help you find a solution.
5. Avoid reinforcing bad behavior: It’s important to avoid reinforcing your Dachshund’s excessive barking. Don’t give him attention when he barks, as this can inadvertently encourage him to bark more. Instead, ignore the barking and only give attention and treats when your Dachshund is calm and quiet.
6. Use positive reinforcement: Positive reinforcement is a powerful tool in training dogs. When your Dachshund stops barking, give him a treat and praise him for being quiet. This will help him associate being quiet with positive experiences.
7. Be patient: Training a Dachshund to stop barking excessively takes time and patience. Don’t get discouraged if your Dachshund doesn’t improve right away. Keep working with him and be consistent in your approach.

In conclusion, training a Dachshund to stop barking excessively requires a combination of patience, consistency, and positive reinforcement. Make sure to address any underlying issues and provide plenty of exercise and mental stimulation to keep your Dachshund happy and healthy. With the right approach, you can help your Dachshund learn to be quieter and more well-behaved.