What makes a transaction get stuck on the network?

[VenusianLion]

I have been sending Bitcoin all month to my exchange and it would get there under 1 hour.  I send some about 8 hours ago, and not a single confirmation.  Why?  What creates these exceptions?  I used the same fee as always.

Here is the transaction: aee4bc3a302abd18c00883489a72cdff5f929c4f96c99a70fdb67d2dacb90aa4

[ahmadakbari]

You have used the same fee. But the network is not working same as before. Now the network is too busy. You should pay more fee or you have to wait more for your transaction to be confirmed.

[VenusianLion]

From under an hour to 9 hours, that's too big of a change even though I don't see MemPool growing.  It's actually showing less pending transactions than less 3 days.

[squatz1]

The reason a transaction would get 'stuck' on the network is that there are tons of transactions (like yours) that are going to be paying the same fee as you, or even higher. This causes miners to want to mine the TX's which are higher, or the TX's which pay more -- either one as it really doesn't matter for them they're just trying to make as much money as possible.

Only way to accelerate your TX is through some sort of accelerator, try viabtc.

[stompix]

I have been sending Bitcoin all month to my exchange and it would get there under 1 hour.  I send some about 8 hours ago, and not a single confirmation.  Why?  What creates these exceptions?  I used the same fee as always.

Here is the transaction: aee4bc3a302abd18c00883489a72cdff5f929c4f96c99a70fdb67d2dacb90aa4

Blockchain.info mempool data is failing these days too...
I could find your tx on blockchair but not the .info one

https://blockchair.com/bitcoin/transaction/aee4bc3a302abd18c00883489a72cdff5f929c4f96c99a70fdb67d2dacb90aa4

If their calculations are reliable, your place is 24731/245726, so unless nobody sends new transactions to the mempool you are still going to have to wait two hours.
But I've just seen a transaction with higher fees than yours that is stuck for two days.

Are you sure that by all month you include the last 4-5 days also? Cause everything was working almost "fine" one week ago.

[VenusianLion]

I do at least 5 BTC transactions per day, so when I notice something unusually I worry.  This is unusual.  But thanks for the info guys. 

I sent that money to Yobit, and with those .uckers you never know.