Bitcoin Forum

can we cancel a transaction? i have one transaction and it is unconfirmed, but i made it two days ago, can i cancel it and make again?

you can't cancel a transaction in the literal meaning of the word... There are 2 things you can do tough:
1) stop rebroadcasting the transaction, and wait untill most nodes drop it from their mempool
2) double spend the inputs that were also used in the stuck transaction in a new transaction with a higher fee.

Use free services like Viabtc.com to accelerate your TX for getting it confirmed, or use a paid one like mine,

https://bitcointalk.org/index.php?topic=1934749

The transaction is present in the mempool of the clients. You could just wait until it drops out of these pools. This should happen within a few days, if the transaction stays unconfirmed.

I had the same problem. But it is your own mistake. Before sending check the address it is the best thing to to. I lost some BTC because my stupid mistakes...

how to stop rebroadcasting? and if i stop it, the bitcoin i send will come back in my wallet?

It depends on the wallet software you're using. After 72 hours, most nodes will drop your unconfirmed transaction from their mempool. If you don't rebroadcast, the transaction will either confirm, or it will be dropped from the mempool of most nodes.
However, as long as the transaction is in the mempool of a single mining node, there will always be a small chance it will confirm.

About all you can do on your end is to shut down your wallet application and don't open it until you can no longer see the transaction on any block explorers.

However, this does not guarantee that the transaction will not get rebroadcast. Anyone can rebroadcast it at any time if they have the raw transaction. So, if the receiver of the transaction wants to make sure they get their coins, they can just keep rebroadcasting the transaction to make sure it doesn't drop out of the mempool.

Some nodes will rebroadcast transactions and some webwallets (like blockchain.info) rebroadcast transactions sent from them and there really isn't anything you can do to stop it. :(

Also, as soon as you re-open your wallet, it may rebroadcast... What wallet software are you using?

i am using multibit wallet on my pc. but i don't understand about shutting my wallet? does it work from my internet? so it depends on my internet speed? if speed is slow, then transaction will be slow?
i made the transfer and closed the wallet? did that slowed the transaction? i keep checking it two three times during the day but still sending.
now i see it is seen by 106 peers, how many more are required?
and if i keep my wallet open, will they see it quickly than if i close the wallet?

"Speed" of the transaction has nothing to do with your wallet being open or closed. Once it has been broadcast to the network, it is mostly about the fee that you used for the transaction. Low fee = Slow fee :P

Are you using multibit classic or multibit HD?

is this will make our fund back to our wallet?

It should.. However, i've noticed some wallets need to be "repaired" or "rescanned" for them to re-add the unspent outputs to your balance.

i am using multibit hd.
how long should i wait before i try to repair my wallet?

i got same problem was ago, my tx was dropped by mempool, and it takes 48 hours, and funds come bank to sender wallet.
waiting is your option for now, but your funds is safe.

I would quickly double spend the amount.  That would, if nothing else, buy you some time.  Once you send coins, you can count on them to be gone and consider yourself lucky if you can stop it.  There are many ways to do this, but in the end, it is always possible that it will never happen.  Every block that goes by is another chance that it will get confirmed even more and more.

its 10 days now and i once repaired my wallets also. that i think restarted the transfer, don't know for sure.

You haven't given us your tx id (that's not a real problem), it does mean i cannot check when i received your transaction on my node.
You can look up your transaction on blockchain.info, and see at what time their node received your transaction. If they received it just now, it means your wallet indeed rebroadcasted it.