Error 503 Unable to Connect to LND Server after logging in to RTL

[Zaphod101010]

I seem to be having the same issue as this #1018
but running on ubuntu instead of windows.

I can use curl to query the LND rest api with the macaroon header, but calls to LND via RTL are failing with the following error after logging in to the RTL UI. It looks like RTL isn't sending any headers...

ERROR: GetInfo => Get Info Error: {"name":"RequestError","message":"Error: connect ECONNREFUSED ::1:8084","cause":{"errno":-111,"code":"ECONNREFUSED","syscall":"connect","address":"::1","port":8084},"error":{"errno":-111,"code":"ECONNREFUSED","syscall":"connect","address":"::1","port":8084},"options":{"url":"https://localhost:8084/v1/getinfo","rejectUnauthorized":false,"json":true,"headers":{},"method":"GET","qs":{},"simple":true,"resolveWithFullResponse":false,"transform2xxOnly":false}}

LND Config

debuglevel=info

listen=0.0.0.0:9735
restlisten=0.0.0.0:8084
rpclisten=localhost:10009

alias=[...]

[Bitcoin]
bitcoin.active=1
bitcoin.mainnet=1
bitcoin.node=bitcoind

[Bitcoind]
bitcoind.dir=/media/[...]/2TB/bitcoin/
bitcoind.config=/media/[...]/2TB/bitcoin/bitcoin.conf

bitcoind.rpchost=localhost
bitcoind.rpcuser=[...]
bitcoind.rpcpass=[...]

bitcoind.zmqpubrawblock=tcp://127.0.0.1:28332
bitcoind.zmqpubrawtx=tcp://127.0.0.1:28333

RTL Config

  "port": "3001",
  "defaultNodeIndex": 1,
  "SSO": {
    "rtlSSO": 0,
    "rtlCookiePath": "",
    "logoutRedirectLink": ""
  },
  "nodes": [
    {
      "index": 1,
      "lnNode": "Node 1",
      "lnImplementation": "LND",
      "Authentication": {
        "macaroonPath": "/home/[...]/.lnd/data/chain/bitcoin/mainnet",
        "configPath": "/home/[...]/.lnd/lnd.conf"
      },
      "Settings": {
        "userPersona": "MERCHANT",
        "themeMode": "DAY",
        "themeColor": "PURPLE",
        "channelBackupPath": "/home/[..]/.lnd/backup",
        "bitcoindConfigPath": "/media/[...]/2TB/bitcoin/bitcoin.conf",
        "logLevel": "DEBUG",
        "lnServerUrl": "https://localhost:8084/v1",
        "fiatConversion": false
      }
    }
  ],
  "multiPassHashed": "[...]"
}

Bitcoin Config

# RPC
server=1
rpcport=8332
rpcclienttimeout=30
rpcuser=[...]
rpcpassword=[...]

# LND node setup
zmqpubrawblock=tcp://127.0.0.1:28332
zmqpubrawtx=tcp://127.0.0.1:28333

dbcache=4000

LND v0.15.2
RTL v0.13.1
Bitcoin v22.0.0
Firefox v105

[Zaphod101010]

Was able to solve the issue by changing the RTL config lnServerUrl from "localhost" to 127.0.0.1. I logged the errRes in the catch block and it showed address: '::1' which is the ipv6 loopback. I guess my LND was only listening on ipv4.

[ShahanaFarooqui]

@Zaphod101010 Thank you for sharing the solution. Closing it now.

[xmready]

I also had this problem and needed to change localhost to 127.0.0.1 in order to get RTL to connect. Hopefully it gets fixed.