I have started Sync of ETH node to my VPS. I want to call RPC Call to get balance details of addresses. What i have done is as below: 1) Install geth started geth service 2) geth --fast --rpc

After few hours i have stopped geth sync and add some peers using admin.addPeers() method

Again start geth sync using below command on specific port

geth --syncmode light console --rpc --rpcport 3000

after this i have fired admin.peers it shows empty Array so i have add some peers and then check using admin.peers below is the image of admin.peers

enter image description here

Now i am still not able to call RPC Call on my IP I am getting error

Error: Couldn't connect to server Here are some additional things that may help.

Documentation Contact Support Loading... Cancel Request Unknown Response Code0.000 milliseconds Read
Current Status of Node sync is as below enter image description here

Error while calling RPC Call enter image description here

  • from where and how are you calling Geth exposed RPC server ?
    – kherwa
    Commented May 22, 2018 at 7:41
  • I am calling RPC all to server by specified port 3000 Commented May 22, 2018 at 8:01
  • I mean from browser or Node.js or anything else?
    – kherwa
    Commented May 22, 2018 at 8:09
  • Are you using curl or web3 to consume RPC API’s?
    – kherwa
    Commented May 22, 2018 at 8:18
  • I am calling from postman or restclient. as it is not responding in postman it will not reflact in other restclient also Commented May 22, 2018 at 8:20

3 Answers 3


Can you try to use this geth option --rpccorsdomain "*" (or --rpccorsdomain "")?

To accept cross origin requests, this rpccorsdomain option should be set when you launch geth from console.

  • Okay, Let me try this Commented May 22, 2018 at 7:18
  • This is not working, I have checked, it shows same error. Commented May 22, 2018 at 7:24
  • I have added answer that fixed my problem. But still i am getting some minor issues like "no suitable peers available" Commented May 22, 2018 at 10:43

As you have started RPC server at port 3000, when running Geth with option --rpcport=3000. So while consuming RPC API's use port 3000, instead of default port 8545. That will solve your problem.

  • 1
    This is not a actual problem. Commented May 22, 2018 at 10:36
  • then what is the problem? As far as i can see in postman , you are sending JSON-RPC request to port 8545
    – kherwa
    Commented May 22, 2018 at 10:40

Start geth by this command will solve the problem. Using below command it allows all other IP to access it.

geth --syncmode light console --rpc --rpcport 8545 --rpccorsdomain "*" --rpcaddr --rpcapi db,eth,net,web3,personal

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