---
title: "R1.3, R1.4 differences"
url: "https://maker.wiznet.io/forum/11481"
markdown_url: "https://maker.wiznet.io/forum/11481/md"
type: "Forum topic"
category: "Serial-to-Ethernet & ConfigTool"
author: "alba"
created: "2015-11-26T07:53:42+09:00"
last_activity: "2017-05-04T08:37:36+09:00"
language: "en"
views: 598
replies: 1
source: "WIZnet Makers forum (https://maker.wiznet.io/forum/)"
---

# R1.3, R1.4 differences

## Question

Asked by alba on 2015-11-26 in Serial-to-Ethernet & ConfigTool.

Good morning,
I’ve a custom gear that mount WIZ107SR card to translate TCP-serial information.
My gear works with R1.3 version (firmware 3.11), but if I put R1.4 card (firmware 4.05 or 4.04), does not work.

Somone may help me? thanks.

## Replies

### Reply 1 by irina, 2015-11-26

There is no significant difference in hardware except for the added external WDT IC. so, revision 1.4 hardware can also be used to 3.xx version firmware. (backward (1.3) compatible with revision 1.4 hardware)
[Link] Old firmwares: [wiznet.co.kr/product-item/wiz107sr/](http://www.wiznet.co.kr/product-item/wiz107sr/)

However, we recommend that you are looking for the cause of the problem and utilizing the latest firmware for stability.
I append the following information for you. Please compare with your configurations.

> WIZ107SR Firmware Update History
>
> ## ==================================================== v4.05 (Firmware for WIZ107SR H/W Rev. 1.3 / 1.4)
>
> Software(Firmware) has been upgraded to prevent the problem of MAC Address removal (changed to FF:FF:FF:FF:FF:FF)
>
> Bugs fixed
>
> 1. At the TCP mixed mode
>
> - After finishing the server mode operation, if the module tried to go into the ‘command mode’ from disconnect status,
>   the first command was regarded as an error
>
> - When the module coverted into client mode,connected to the server and transitted data,
>   the first 1~2 byte of data was lost
>
> - When the module was in server mode, the time packing condition was disregared after connection was closed and establised again.
>
> Funtions Added
>
> 1. When the ‘Debug messaage’ is eanbled, AT/GW mode convertion messages
>   - When the Serial AT command mode is successfuly configured, ‘LGSEG:AT Mode’ message is displayed
>   - When the Gateway mode is successfully configured, ‘LGSEGLGW Mode’ message is daplayed
>
> ## ==================================================== v4.04 (Firmware for WIZ107SR H/W Rev. 1.3 / 1.4)
>
> Bug fixed
>
> - More stable in S2E data communication to fix the problem that any byte in data drops in Baudrate 115200bps sometimes
>
> - More stable in DHCP function to fix the problem on the lease time calculation when user tries to renew DHCP
>
> Function addition
>
> - The function to display PHY link status using HW_TRIG pin
>   => In normal operation, HW_TRIG displays TCP connection status like before(the state in TCP connection established: low, the other states: high)
>   => In No-PHY link(like Ethernet cable is disconnected) case, HW_TRIG pin generates High and low signal in turns every second. When returning to normal condition, HW_TRIG displays TCP connection status as usual
>
> Function removal
>
> - The removal of H/W Factory reset pin for more stable operation, but S/W Factory reset still exists. User can do S/W Factory reset using configuration tool or AT command set.
>
> - The removal of displaying DHCP Debug message
>
> - The removal of IP port filtering function in S2E communication over UDP. It enables multiple-peer communication(In previous version 4.03, only peer-to-peer communication was allowed)
>
> ## ==================================================== v4.03 (Firmware for WIZ107SR H/W Rev. 1.3 / 1.4)
>
> Bug fixed
>
> - Fixed DNS error when using it with DHCP at the TCP Client Mode
>
> - Fixed DHCP parser error when processing DHCP option field 0.
>
> - Fixed the error that “Ethernet to UART” function operates when the remote IP information is not correct at the UDP mode
>
> ## ==================================================== v3.14 (Firmware for WIZ107SR H/W Rev. 1.3 only)
>
> Bug fixed
>
> - PHY Initialization Check routine was revised
>
> - Problem about handling serial command mode was fixed
>   => WIZ107SR jumps to serial command mode when it received data having serial command triggering character set from its serial was fixed.
>
> ## ==================================================== v3.11 (Firmware for WIZ107SR H/W Rev. 1.3 only)
>
> Bug fixed
>
> - WIZ107SR can be used the serial command mode without connecting LAN cable.

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Source: https://maker.wiznet.io/forum/11481