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Redbelly Network Troubleshooting: Fixes for the 21 Most Common Developer Errors

Network Quick Reference

Testnet Mainnet
Chain ID 153 (hex 0x99) 151 (hex 0x97)
RPC URL https://governors.testnet.redbelly.network https://governors.mainnet.redbelly.network
Explorer https://redbelly.testnet.routescan.io https://redbelly.routescan.io
Gas token RBNT RBNT
Faucet https://redbelly.faucetme.pro (Discord login) n/a

Account Access and Permissioning

The single most Redbelly-specific roadblock: write access to the network is permissioned per account.

21. "Sender not authorised to write transactions"

Reproduced and resolved end to end on Redbelly Testnet, July 2026: a freshly generated wallet's first deployment attempt returned this exact error; after completing the credential and enablement flow below, the same key deployed successfully (tx 0x6b852e17bc77f0cad8a7e5b03e264a08eed9f297c20a72f1b8498c6ee51a40e9).

Symptom

ProviderError: Sender not authorised to write transactions

The very first transaction from a wallet fails with this error: contract deployment, token transfer, anything that writes. Read calls (eth_call, balance queries) work fine. This hits hardest in scripted setups, because a deployer key generated by Hardhat, a CI pipeline or a tool like thirdweb has never been near the access flow.

Related symptoms in the access dApp itself: "Account status: Not enabled" even though the account holds the access credential, and "Balance: Insufficient funds to enable account" even though you funded the account on testnet (the dApp is checking your balance on a different network than the one you funded).

Root Cause

Redbelly is a compliance-first chain: unlike most EVM networks, the protocol itself restricts transaction submission to enabled accounts. Getting write access is a three-part sequence, and each part is separate:

  • The account must hold the Redbelly Network Access Credential, issued by the accredited issuer (Averer) after identity verification.
  • The account must be funded, because the enablement itself is an on-chain transaction that costs gas. You cannot enable an empty account.
  • The account must be enabled on each network separately. Enabling on Mainnet does not enable Testnet, and the access dApp operates against the network your wallet is currently connected to, so it can report "insufficient funds" while your testnet balance is healthy simply because your wallet is pointed at Mainnet.

A brand-new keypair, however well funded, is not authorised until all three parts are complete. Receiving RBNT does not require enablement (transfers in always work), which makes the situation confusing: the faucet succeeds, the explorer shows a balance, and the first outgoing transaction still fails. This also breaks tools that deploy through auto-generated intermediate wallets (thirdweb's presumptive deployment fails on Redbelly for exactly this reason; see thirdweb-dev/contracts issue 615).

Solution

The working order is: credential, fund, connect to the right network, enable, transact.

  1. Open the official access dApp at https://access.redbelly.network/ and connect the wallet your transactions will be sent from (MetaMask and Coinbase Wallet are supported).
  2. First time on the network: follow the prompts to verify your identity with the accredited issuer (Averer) and claim the Redbelly Network Access Credential. Identity verification is free; the issuer covers the associated fees.
  3. Already verified: you do not need to repeat identity verification for additional wallets. The access dApp lets you add more accounts connected to your existing identity, which is the right way to set up a dedicated deployer key for scripts (import the key into MetaMask, add it as an additional account, then keep it in your project's .env).
  4. Fund the account before enabling it: the enablement is an on-chain transaction and an empty account cannot pay for it. On Testnet use the faucet (entry 20 in Faucet and Funding).
  5. Switch your wallet to the network you want access on (chain 153 for Testnet) so the dApp targets the right chain, then complete the enable step and sign the transaction. Repeat per network; Mainnet and Testnet enablement are independent.
  6. Retry your deployment. If a deployment tool creates its own throwaway deployer wallet under the hood, bypass that feature and deploy directly from an enabled wallet.

Prevention

Because enablement is tied to an identity credential, the practical pattern is to enable one or two long-lived deployer accounts per environment and reuse them across projects, rather than generating a fresh key per project the way you would on other EVM chains. Treat "credential, fund, enable, deploy" as standard onboarding for any new account, and document it in your project README; it is the sequence most tutorials written for other chains will not mention.

A security note that follows from this: if your only enabled wallet is a personal one, do not export its private key into a script's .env just to deploy. Enable a dedicated deployer address under your existing credential (no repeat identity verification needed), or deploy through a browser workflow (Remix with an injected wallet) so the key never leaves your wallet. Keep scripted .env keys for accounts that hold nothing you care about.

Network and RPC Issues

Connection problems between your tooling and the Redbelly RPC endpoints.

1. RPC endpoint returns 429 (Too Many Requests)

Symptom

ProviderError: 429 Too Many Requests

Scripts that loop over many eth_call requests (indexers, test suites, dashboards) fail intermittently. Single requests work fine.

Root Cause

The public Redbelly RPC endpoints are shared infrastructure and rate-limit aggressive clients. Batch-heavy tools (Hardhat tests, multicall loops, polling dashboards) exceed the per-IP request budget.

Solution

Add retry with exponential backoff. With ethers v6:

async function withRetry(fn, retries = 5) {
  for (let i = 0; i < retries; i++) {
    try {
      return await fn();
    } catch (err) {
      if (!String(err).includes("429") || i === retries - 1) throw err;
      await new Promise((r) => setTimeout(r, 1000 * 2 ** i));
    }
  }
}
const balance = await withRetry(() => provider.getBalance(address));

Throttle concurrent requests. Replace Promise.all over hundreds of calls with a small concurrency pool (for example p-limit set to 3 to 5 concurrent requests).

Cache anything static. Contract ABIs, decimals and historical blocks never change; fetch once and store.

Prevention

Design for a rate-limited RPC from day one: batch reads with Multicall3 where deployed, poll no faster than the block time, and keep a client-side cache. For production dashboards, run your own node or request a dedicated endpoint from the Redbelly team.

2. RPC connection timeouts and "could not detect network"

Symptom

Error: could not detect network (event="noNetwork", code=NETWORK_ERROR) or FetchError: request to https://governors.testnet.redbelly.network failed, reason: connect ETIMEDOUT

Root Cause

One of three things: (a) the RPC URL is typed incorrectly or missing https://, (b) a local firewall, VPN or corporate proxy blocks the request, or (c) a transient outage of the shared endpoint.

Solution

Verify the endpoint responds before blaming your code:

curl -s -X POST https://governors.testnet.redbelly.network \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"eth_chainId","params":[],"id":1}'

Expected response: {"jsonrpc":"2.0","id":1,"result":"0x99"} (0x99 = 153, the Testnet chain ID).

If curl works but your app does not, the problem is your environment. Check for HTTP_PROXY / HTTPS_PROXY environment variables, VPN split tunnelling, and that your .env value has no trailing whitespace or quotes.

If curl also fails, test from another network (mobile hotspot). If it fails everywhere, check the Redbelly Discord announcements channel for maintenance notices before opening a support thread.

On WSL2 specifically, Node.js can pick a broken IPv6 route. Force IPv4-first resolution:

export NODE_OPTIONS="--no-network-family-autoselection"

Prevention

Add the eth_chainId curl check to your project README as a first diagnostic. In long-running services, wrap the provider in retry logic and alert on repeated network errors instead of crashing.

3. Wrong or deprecated RPC endpoint

Verified on Redbelly Testnet, July 2026.

Symptom

Error: getaddrinfo ENOTFOUND rpc-testnet.redbelly.network or requests to a DevNet URL hang or return errors, even though the URL came from an older guide.

Root Cause

Redbelly's endpoints have changed over time. Older community guides still reference rpc-testnet.redbelly.network or DevNet URLs. DevNet is officially deprecated, the rpc-testnet hostname no longer resolves, and the current canonical endpoints (per the developer portal at vine.redbelly.network) are the governors.* URLs.

Solution

Replace any old endpoint with the current one:

  • Testnet: https://governors.testnet.redbelly.network
  • Mainnet: https://governors.mainnet.redbelly.network

Confirm with the chain ID check:

curl -s -X POST https://governors.testnet.redbelly.network \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"eth_chainId","params":[],"id":1}'
## expect "result":"0x99"

Update hardhat.config.js / foundry.toml, .env files and any wagmi/viem chain definitions in the same pass so no stale URL survives.

Prevention

Define the RPC URL once (an .env variable or a shared chains.ts) and import it everywhere. When following any tutorial older than a few months, cross-check endpoints against https://vine.redbelly.network/environments/ before running anything.

4. Chain ID mismatch ("network changed" or "Unrecognized chain")

Symptom

NetworkError: underlying network changed (event="changed", network={"chainId":153,...}) or MetaMask rejects a transaction with Unrecognized chain ID, or Hardhat aborts with a chain ID assertion error.

Root Cause

The chain ID configured in your tooling does not match what the RPC actually reports. Common causes: using Mainnet chain ID 151 with the Testnet RPC (or vice versa), a leftover DevNet chain ID, or MetaMask connected to a different network than your dApp expects.

Solution

Ask the RPC what it really is (see the curl in entry 3). 0x99 = 153 = Testnet, 0x97 = 151 = Mainnet.

Make your Hardhat config match:

// hardhat.config.js
networks: {
  redbellyTestnet: {
    url: "https://governors.testnet.redbelly.network",
    chainId: 153,
    accounts: [process.env.PRIVATE_KEY],
  },
},

In the frontend, prompt a network switch instead of failing silently:

await window.ethereum.request({
  method: "wallet_switchEthereumChain",
  params: [{ chainId: "0x99" }],
});

Prevention

Never hardcode chain IDs in more than one place. Keep a single chain definition object and reference it from Hardhat, wagmi/viem config and deployment scripts.

Wallet and MetaMask Issues

Problems connecting MetaMask and other wallets to Redbelly.

5. MetaMask not detecting Redbelly Network

Symptom

Redbelly does not appear in MetaMask's network list, or the "Add network" search finds nothing, so the user cannot connect to your dApp at all.

Root Cause

Redbelly is not in MetaMask's built-in popular networks list, so it must be added manually or programmatically. Users following a dApp prompt may also hit this if the dApp only calls wallet_switchEthereumChain, which fails with error 4902 when the chain has never been added.

Solution

Manual (for users): MetaMask > Networks > Add a custom network, and enter:

  • Network name: Redbelly Testnet
  • RPC URL: https://governors.testnet.redbelly.network
  • Chain ID: 153
  • Currency symbol: RBNT
  • Explorer: https://redbelly.testnet.routescan.io

Programmatic (for dApp developers), handling the 4902 case:

try {
  await window.ethereum.request({
    method: "wallet_switchEthereumChain",
    params: [{ chainId: "0x99" }],
  });
} catch (err) {
  if (err.code === 4902) {
    await window.ethereum.request({
      method: "wallet_addEthereumChain",
      params: [{
        chainId: "0x99",
        chainName: "Redbelly Testnet",
        rpcUrls: ["https://governors.testnet.redbelly.network"],
        nativeCurrency: { name: "RBNT", symbol: "RBNT", decimals: 18 },
        blockExplorerUrls: ["https://redbelly.testnet.routescan.io"],
      }],
    });
  } else {
    throw err;
  }
}

Users can also add the chain in one click from https://chainlist.org/chain/153.

A related point of confusion once the network is added: RBNT is the network's native gas coin, not

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