<p>Can you provide us with your node version : <code>cardano-node --version</code>
And the slot and epoch number at which your node stopped syncing. Thanks</p>
<p>The testnet recently hard-forked into Alonzo era and if your node isn't at version <code>1.29.0</code> then you'll have issues syncing past the hardfork.
If indeed your node is outdated, download the latest binaries here : <a href="https://github.com/input-output-hk/cardano-node#linux-executable" rel="nofollow noreferrer">Binaries 1.29.0</a></p>
<p>Also make sure to get the latest configuration files at : <a href="https://hydra.iohk.io/build/7370192/download/1/index.html" rel="nofollow noreferrer">Config files</a></p>
<p>A common fix is also to delete the database folder containing <code>immutable</code>, <code>ledger</code>, ...
So try this if the above doesn't apply or solve your issue (this will re-sync your node from epoch 1).</p>

CC BY-SA 4.0
2021-09-04T14:17:54.497Z
This was helpful to some extent. I updated to 1.29. My node is fully synced, but when i run cardano-wallet serve. I get this error
cardano-wallet: ExceptionInLinkedThread (ThreadId 15) DecoderFailure
sheldon cooper
CC BY-SA 4.0
2021-09-05T10:30:05.250Z
Unfortunately I'm not that familiar with cardano-wallet, though I would also suggest checking that it is up to date. Good luck
Alain Magazin
CC BY-SA 4.0
2021-09-16T19:08:10.733Z
removing the db folders `immutable` and `ledger` was enough for me, although I'm at version 1.27. After deleting them I re-ran `cardano-node run ...`
Glad I didn't need to reinstall all of that lol, took me quite some time just yesterday
Boommeister
CC BY-SA 4.0
2021-09-04T11:51:10.300Z
2021-09-04T11:51:10.300Z
Alain Magazin
<p>My cardano node was running normal and all of sudden I get this error,
<strong>ErrorPolicySuspendPeer (Just (ApplicationExceptionTrace (MuxError (MuxIOException Network.Socket.recvBuf: resource vanished (Connection reset by peer)) &quot;(recv errored)&quot;))) 20s 20s</strong></p>
<p>I have tried restarting the node, but the error is same.
Note: I am using testnet.
Updated Status:
<a href="https://i.sstatic.net/NRFXD.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/NRFXD.jpg" alt="enter image description here" /></a></p>

<cardano-node><cardano-db-sync>
Cardano Node: Connection reset by peer problem ---
# Cardano Node: Connection reset by peer problem ---

(Asked by: username_0 on 2021-09-04)

My cardano node was running normal and all of sudden I get this error,
**ErrorPolicySuspendPeer (Just (ApplicationExceptionTrace (MuxError (MuxIOException Network.Socket.recvBuf: resource vanished (Connection reset by peer)) "(recv errored)"))) 20s 20s**

I have tried restarting the node, but the error is same.
Note: I am using testnet.
Updated Status:
[![enter image description here](https://i.sstatic.net/NRFXD.jpg)](https://i.sstatic.net/NRFXD.jpg)

**Tags:** cardano-node, cardano-db-sync

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## 1 answers

### Answer by username_1 on 2021-09-04. Score: 2

Can you provide us with your node version : `cardano-node --version`
And the slot and epoch number at which your node stopped syncing. Thanks

The testnet recently hard-forked into Alonzo era and if your node isn't at version `1.29.0` then you'll have issues syncing past the hardfork.
If indeed your node is outdated, download the latest binaries here : [Binaries 1.29.0](https://github.com/input-output-hk/cardano-node#linux-executable)

Also make sure to get the latest configuration files at : [Config files](https://hydra.iohk.io/build/7370192/download/1/index.html)

A common fix is also to delete the database folder containing `immutable`, `ledger`, ...
So try this if the above doesn't apply or solve your issue (this will re-sync your node from epoch 1).

> **Comments:**
> **username_0**: This was helpful to some extent. I updated to 1.29. My node is fully synced, but when i run cardano-wallet serve. I get this error cardano-wallet: ExceptionInLinkedThread (ThreadId 15) DecoderFailure  
> **username_1**: Unfortunately I'm not that familiar with cardano-wallet, though I would also suggest checking that it is up to date. Good luck  
> **username_2**: removing the db folders `immutable` and `ledger` was enough for me, although I'm at version 1.27. After deleting them I re-ran `cardano-node run ...` Glad I didn't need to reinstall all of that lol, took me quite some time just yesterday  

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