---
description: MUDEC_00281
---

# recv(2) error: read 80 (expected 128)

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**Turn off&#x20;**_**Compatibility Mode**_

{% embed url="https://mudfish.net/forums/7/topics/47825" %}
https://mudfish.net/forums/7/topics/47825
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{% embed url="https://mudfish.net/forums/6/topics/47819" %}
https://mudfish.net/forums/6/topics/47819
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* Please check [Firewall Issues](https://mudfish.net/docs/en/support/firewall.html) and try to use `-O` or `-t` options.

![](https://3475674705-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LWoc97xBPh2omTCCksD%2F-LYRrfl8FU-Cnxod2atl%2F-LYRrlWT-yrCmynkee8F%2Foption_o.png?alt=media\&token=43e476db-64e4-4b92-a712-98b10685cce6)

{% embed url="https://mudfish.net/forums/6/topics/47471" %}
https://mudfish.net/forums/6/topics/47471
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{% embed url="https://mudfish.gitbook.io/topics/vpn/firewall/process-x" %}
https://mudfish.gitbook.io/topics/vpn/firewall/process-x
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