---
title: "Problems using W5300"
url: "https://maker.wiznet.io/forum/11811"
markdown_url: "https://maker.wiznet.io/forum/11811/md"
type: "Forum topic"
category: "Ethernet Chips"
author: "zoutaojorman"
created: "2016-04-20T09:09:20+09:00"
last_activity: "2017-05-04T08:38:42+09:00"
language: "en"
views: 733
replies: 0
source: "WIZnet Makers forum (https://maker.wiznet.io/forum/)"
---

# Problems using W5300

## Question

Asked by zoutaojorman on 2016-04-20 in Ethernet Chips.

1.Sn_SSR appears as the content of 0x11, according to the description of the manual, there should not be such a state. During this state, can ping, but never link, can only be re initialized w5300.

2 Call getSn_TX_FSR, often get vaule freeSize=0. I only use a socket, and Rx/TX mem are both 64k.
If you’ve ever had a similar problem, please help me,thank you.

---

Source: https://maker.wiznet.io/forum/11811