<p>Recently, pre-production environment was re-spun (check &quot;build-announcements&quot; in IOG's Technical Community discord), I would suggest you to delete your <code>db</code> folder and use latest configuration from <a href="https://book.world.dev.cardano.org/environments.html#pre-production-testnet" rel="nofollow noreferrer">here</a>.</p>

CC BY-SA 4.0
2022-11-07T11:42:11.653Z
I have downloaded latest cardano node and install it with latest config file. Now it is synced.
Alex Smith
CC BY-SA 4.0
2022-11-06T05:31:21.497Z
2022-11-06T05:31:21.497Z
Sourabh
<p>My cardano node was 100% synced and it is running in production environment. But suddenly I am seeing that my cardano node block get backed and sync percent is 97.78%.</p>
<p>Error log:</p>
<pre><code>[ip-30-0-:cardano.node.DnsSubscription:Error:9719] [2022-11-03 15:48:30.76 UTC] Domain: &quot;relays-new.cardano-mainnet.iohk.io&quot; Application Exception: 3.130.47.105:3001 MuxError MuxBearerClosed &quot;&lt;socket: 38&gt; closed when reading data, waiting on next header True&quot;
[ip-30-0-:cardano.node.ErrorPolicy:Warning:4967] [2022-11-03 15:48:30.76 UTC] IP 3.130.47.105:3001 ErrorPolicySuspendPeer (Just (ApplicationExceptionTrace (MuxError MuxBearerClosed &quot;&lt;socket: 38&gt; closed when reading data, waiting on next header True&quot;))) 20s 20s
[ip-30-0-:cardano.node.DnsSubscription:Error:9716] [2022-11-03 15:48:30.97 UTC] Domain: &quot;relays-new.cardano-mainnet.iohk.io&quot; Application Exception: 54.250.21.52:3001 MuxError MuxBearerClosed &quot;&lt;socket: 35&gt; closed when reading data, waiting on next header True&quot;
[ip-30-0-:cardano.node.ErrorPolicy:Warning:4967] [2022-11-03 15:48:30.97 UTC] IP 54.250.21.52:3001 ErrorPolicySuspendPeer (Just (ApplicationExceptionTrace (MuxError MuxBearerClosed &quot;&lt;socket: 35&gt; closed when reading data, waiting on next header True&quot;))) 20s 20s
</code></pre>

CC BY-SA 4.0
2022-11-03T19:20:13.380Z
What you posted is unlikely to be the actual cause of the halt, because its messages that a normal running node also gets. What version of the `node` are you running?
Erik de Castro Lopo
<cardano-node>
Cardano node sync suddenly stopped at 97.79 %
# Cardano node sync suddenly stopped at 97.79 %

(Asked by: username_0 on 2022-11-03)

My cardano node was 100% synced and it is running in production environment. But suddenly I am seeing that my cardano node block get backed and sync percent is 97.78%.
Error log:
[ip-30-0-:cardano.node.DnsSubscription:Error:9719] [2022-11-03 15:48:30.76 UTC] Domain: "relays-new.cardano-mainnet.iohk.io" Application Exception: 3.130.47.105:3001 MuxError MuxBearerClosed " closed when reading data, waiting on next header True"
[ip-30-0-:cardano.node.ErrorPolicy:Warning:4967] [2022-11-03 15:48:30.76 UTC] IP 3.130.47.105:3001 ErrorPolicySuspendPeer (Just (ApplicationExceptionTrace (MuxError MuxBearerClosed " closed when reading data, waiting on next header True"))) 20s 20s
[ip-30-0-:cardano.node.DnsSubscription:Error:9716] [2022-11-03 15:48:30.97 UTC] Domain: "relays-new.cardano-mainnet.iohk.io" Application Exception: 54.250.21.52:3001 MuxError MuxBearerClosed " closed when reading data, waiting on next header True"
[ip-30-0-:cardano.node.ErrorPolicy:Warning:4967] [2022-11-03 15:48:30.97 UTC] IP 54.250.21.52:3001 ErrorPolicySuspendPeer (Just (ApplicationExceptionTrace (MuxError MuxBearerClosed " closed when reading data, waiting on next header True"))) 20s 20s

**Tags:** cardano-node
> **Comments:**
> **username_1**: What you posted is unlikely to be the actual cause of the halt, because its messages that a normal running node also gets. What version of the `node` are you running?  

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## 1 answers

### Answer by username_2 on 2022-11-06. Score: 0

Recently, pre-production environment was re-spun (check "build-announcements" in IOG's Technical Community discord), I would suggest you to delete your `db` folder and use latest configuration from [here](https://book.world.dev.cardano.org/environments.html#pre-production-testnet).

> **Comments:**
> **username_0**: I have downloaded latest cardano node and install it with latest config file. Now it is synced.  

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