The honest answer for a Dachshund puppy
Dachshund puppies are not easy to housetrain by most owners' standards, and expecting a quick result is where frustration starts. This is a dog bred to work underground on his own judgment, following scent and making decisions without a handler beside him. That independence is charming in an adult and challenging in a puppy who has decided the hallway carpet is an acceptable toilet. Add a small bladder and a low belly that makes wet grass genuinely unpleasant, and you have a breed that often takes months of steady work to become reliable indoors.
Why this breed tests your routine
A Dachshund puppy is not being spiteful when he sneaks off behind furniture. He can hold on for only a short stretch, he is easily pulled off task by an interesting smell on the way to his toilet spot, and he learns locations rather than rules at first. If he manages to toilet quietly indoors a few times, that indoor spot starts to smell right to him and the habit deepens. Cold mornings and rain make the problem sharper, because a puppy whose chest brushes damp ground has a real incentive to finish the job inside where it is warm and dry.
A Dachshund-specific routine that works
Carry your puppy to the same small patch outside rather than letting him wander there on a lead, because wandering invites sniffing expeditions and forgotten business. Go out on waking, after eating, after play, after any excited greeting, and last thing at night, and stay boring while you wait so the outing is about toileting, not adventure. The moment he finishes outside, praise warmly and offer a tiny food reward right there, not back indoors, so the link between the outdoor spot and good things is unmistakable. Indoors, keep him in the room with you or in a snug pen on a washable surface, and take him out again if he circles, sniffs the floor intently, or heads for a corner he has used before.
Setbacks, rain, and the long game
Expect progress in steps rather than a straight line, with clean days followed by accidents when the weather turns or the household routine changes. Clean accident spots thoroughly so the scent does not call him back, and never scold him after the fact, because a Dachshund who worries about your reaction simply learns to hide where he toilets. If you use an indoor toilet area during very bad weather, keep it in one fixed place away from his bed and food, and keep outdoor trips as the main goal so he does not decide indoors is always acceptable. Because of this breed's long back, avoid expecting a young puppy to manage stairs to reach the garden, and carry him safely with his body supported if steps are unavoidable.
Watching for a problem that is not training
Frequent tiny puddles, straining, or a puppy who suddenly loses progress he had held for weeks deserves a veterinary check rather than more training pressure, since urinary discomfort can undo good habits quickly in a small dog. Tell your veterinary practice how often accidents happen, whether he drinks more than usual, and whether the urine looks or smells unusual, because those details help them judge what to examine. Keep notes on feeding times and successful outings alongside those observations, so the picture you share is based on the actual pattern and not a guess.
KinsLe Care Teams suits this slow, shared effort well, letting everyone who carries the Dachshund out record the trip and its result so the rota stays frequent enough for his small bladder to succeed.