I'm new to Ethereum development. I set up the mist Ethereum wallet with rinkeby testnet for contract deployment. All worked good I could send transactions and write to the smart contract but at some point my transactions stopped going thru. They are stuck at pending status.
Why are my transactions not going through? How can I troubleshoot issues like this in the future?
Example of transactions that are not being accepted:executing a smart contract
Four days ago all transactions were accepted but none of my transacations since are going through.
edit: Seems like the transactions I have been doing for the past 3 days just went through. Does it mean my transactions were in the pool for 3 days?