---
title: "ssl handshaking failed"
url: "https://maker.wiznet.io/forum/14220"
markdown_url: "https://maker.wiznet.io/forum/14220/md"
type: "Forum topic"
category: "Ethernet Chips"
author: "gxjiang05"
created: "2021-04-16T09:24:26+09:00"
last_activity: "2021-04-19T01:26:27+09:00"
language: "en"
views: 584
replies: 1
source: "WIZnet Makers forum (https://maker.wiznet.io/forum/)"
---

# ssl handshaking failed

## Question

Asked by gxjiang05 on 2021-04-16 in Ethernet Chips.

hi, supporters,

I am implementing tls/ssl functionality based on w5100 + stm32f103 hardware platform, the normal tcp communication works well, but the special ssl handshaking can’t work because i can’t receive the whole handshaking package.

[![image](https://maker.wiznet.io/forum_uploads/wiznet/original/2X/9/9c7781fce201e01d43fdaa5849a6a358f95ee5ba.png) image1808×187 18.6 KB](https://maker.wiznet.io/forum_uploads/wiznet/original/2X/9/9c7781fce201e01d43fdaa5849a6a358f95ee5ba.png)

the ssl handshaking functionality in linux platform(tcp protocol stack is implemented in linux platform) is okay.
would you please analyze for me?
thanks a lot.

## Replies

### Reply 1 by gxjiang05, 2021-04-19

using ioLibrary 3.1.3

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Source: https://maker.wiznet.io/forum/14220