# Matlab connection issue

**URL:** https://forum.liquidinstruments.com/t/matlab-connection-issue/1030
**Category:** Software & APIs
**Created:** [August 30, 2024, 7:57am UTC](https://forum.liquidinstruments.com/t/matlab-connection-issue/1030 "2024-08-30T07:57:30Z")
**Posts on this page:** 2
**Page:** 1

<div class="post-metadata">

### Author: ![petervleugels](https://avatars.discourse-cdn.com/v4/letter/p/9f8e36/32.png) [@petervleugels](https://forum.liquidinstruments.com/u/petervleugels)
#### Post date: [August 30, 2024, 7:57am UTC](https://forum.liquidinstruments.com/t/matlab-connection-issue/1030/1 "2024-08-30T07:57:30Z")

</div>

Dear

We try to get connection our fantastic Moku Pro via matlab but we got the error message below. We collected the IP address via the moku app so it should be correct. No idea if this problem is caused by using IP6 or a missing library issue. Could you help?

Kind regards

Peter

 ![image (14)](https://canada1.discourse-cdn.com/flex035/uploads/liquidinstruments/original/1X/b0816d5f6bc391de5dc4934e8c2b1d0476e251d3.png)

---

<div class="post-metadata">

### Author: ![indira](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.liquidinstruments.com/indira/32/317_2.png) [@indira](https://forum.liquidinstruments.com/u/indira)
#### Post date: [September 2, 2024, 2:00am UTC](https://forum.liquidinstruments.com/t/matlab-connection-issue/1030/2 "2024-09-02T02:00:47Z")

</div>

Hi petervleugels,

I think the issue you are encountering is that you have not adapted your IP address formatting for your IPv6 address. The details are outlined in this section of the API reference: [Finding Your IP Address | Moku API](https://apis.liquidinstruments.com/ip-address.html#specifying-ipv6-addresses)

Essentially, this means you need to change your address to IP address in line 1 to:  
`i = MokuOscilloscope('[fe80:XXXX:2d5e%14]', false);`

I hope this helps,  
Indira