title: Rinkeby: "replacement transaction underpriced"
body: <p>I've been running a local Rinkeby node (in order to use websocket events) which was working fine for a while, but suddenly I have been getting "Returned error: replacement transaction underpriced". I am sending 10x the <a href="https://www.rinkeby.io/" rel="noreferrer">average gas price</a> and I'm still getting this error. Here are my calculations:</p>
  
  <pre><code>gwei = 1000000000
  gas = 47000
  gasPrice = gwei * 20
  </code></pre>
  
  <p>Only when I bump the gas price to (gwei * 2000) can I make a transaction (0.9 ether). This is causing me to run out of ether very quickly making development real hard.</p>
  
  <p>Example tx:</p>
  
  <pre><code>{
    "nonce": "0x23",
    "chainId": 4,
    "to": "0xB92427792629A23E0b2deE37b3F92Ce4D4cB794c",
    "value": 0,
    "gas": "0xb798",
    "gasPrice": "0x4a817c800",
    "data": "0xce07c1787465737400000000000000000000000000000000000000000000000000000000"
  }
  </code></pre>
  
  <p>Any help is much appriciated!</p>
  
  <p>Geth Rinkeby Cmd:</p>
  
  <pre><code>geth --rpccorsdomain="*" --rinkeby --ws --wsport=8546 --wsorigins="*" --datadir=$HOME/.rinkeby --cache=512 --rpc --rpcapi="personal,eth,network,net,web3,db"  --rpcport=8545 --fast --bootnodes=enode://a24ac7c5484ef4ed0c5eb2d36620ba4e4aa13b8c84684e1b4aab0cebea2ae45cb4d375b77eab56516d34bfbd3c1a833fc51296ff084b770b94fb9028c4d25ccf@52.169.42.101:30303
  </code></pre>