# Windows Desktop App Error

**URL:** <https://openziti.discourse.group/t/windows-desktop-app-error/4129>\
**Category:** Tunneler Apps\
**Created:** [March 11, 2025, 5:43am UTC](https://openziti.discourse.group/t/windows-desktop-app-error/4129 "2025-03-11T05:43:35Z")\
**Posts on this page:** 1\
**Showing post:** 15

<div class="post-metadata">

**Author:** ![TheLumberjack](https://yyz2.discourse-cdn.com/free1/user_avatar/openziti.discourse.group/thelumberjack/32/113_2.png) [@TheLumberjack](https://openziti.discourse.group/u/TheLumberjack)\
**Post date:** [March 12, 2025, 12:39am UTC](https://openziti.discourse.group/t/windows-desktop-app-error/4129/15 "2025-03-12T00:39:20Z")

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Ok. Thanks for sharing your install steps. I have a feeling that the problem is that one ore more ports are not addressable. I see you are using the quickstart. I can see port 8440 and 8441 are open on your server but two ports are not. 8442 is not open nor is 10080.

Some things to check. After starting the controller run the following

### run verify network

```auto
ziti ops verify network --controller-config-file /path/to/controller

```

For example I broke my network on purpose, you'll see an error

 ![image](https://global.discourse-cdn.com/free1/uploads/netfoundry/original/2X/f/f16c5fb26407c42f2003b122a3217e93fb1d9914.png)

Then run this for the edge router

 ![image](https://global.discourse-cdn.com/free1/uploads/netfoundry/original/2X/c/c314dea2ca8c7f797ceb7f0b0bfa049caed66c1f.png)

run this on both routers and make sure things are good.

### check your routers are linked

```auto
ziti fabric list links

```

make sure you see one link

### run verify traffic

from both the controller and the second router run:

```auto
ziti ops verify traffic

```

Make sure you see the "traffic test successfully detected" message:

 ![image](https://global.discourse-cdn.com/free1/uploads/netfoundry/original/2X/e/e732de18e15e532576973ac76fac2125bde5f5c3.png)

If these are all clean and have no errors, download the ziti binary to the windows computer and run `ziti ops verify traffic` from there

Start there. IF you see any errors, try to figure out what is wrong. Let's see what this shows us

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_[View the full topic](https://openziti.discourse.group/t/windows-desktop-app-error/4129)._