# Roon ARC on iPhone not connecting to Roon Server (ref#SS7HAN)

**URL:** <https://community.roonlabs.com/t/roon-arc-on-iphone-not-connecting-to-roon-server-ref-ss7han/324903>\
**Category:** Support\
**Tags:** rctt\_11-04-2\
**Created:** [September 14, 2026, 4:02pm UTC](https://community.roonlabs.com/t/roon-arc-on-iphone-not-connecting-to-roon-server-ref-ss7han/324903 "2026-09-14T16:02:03Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Kerry](https://community.roonlabs.com/letter_avatar/kerry/32/5_5575768a8748004e209b776fc1b2916d.png) [@Kerry](https://community.roonlabs.com/u/Kerry)\
**Post date:** [September 14, 2026, 4:02pm UTC](https://community.roonlabs.com/t/roon-arc-on-iphone-not-connecting-to-roon-server-ref-ss7han/324903/1 "2026-09-14T16:02:03Z")

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#### What app are you having the slowness issue with?
 

· ARC

 
#### What kind of performance/speed issue are you experiencing?
 

· Other

 
#### Please try to reboot your Roon Server
 

· Yes, rebooting helps, but the issue returns after some time

 
#### Please try to reboot your networking gear (Router/Switches/etc.)
 

· No, the issue is still the same even after a reboot

 
#### Is there any change in behavior if you try to navigate to Roon Settings -\> Library and set both Background and On-Demand Audio Analysis to Throttled or Off?
 

· No, the issue is still the same

 
#### Does the issue happen on multiple Roon Remotes (controllers) or just one?
 

· I only have one Roon remote to test with

 
#### Please try to restart your Roon Remote (controller) app
 

· No, the issue is still the same even after a restart

 
#### What is the operating system of your Roon Remote (controller)?
 

· iOS

 
#### Reinstall Mobile Roon Remote App
 

· No, I am still having the issue even after reinstalling

 
#### Router Domain Name System (DNS) change
 

· I was able to change my router's DNS servers but it did not help

 
#### What is the operating system of your Roon Server host machine?
 

· Nucleus

 
#### Which model Nucleus do you have?
 

· Nucleus+ Rev A

 
#### Timestamp of issue occurrences
 

· Seems to be working now although my Roon software still says it can’t connect to ARC

 
## Describe the issue
 

I’ve been having difficulty with my Roon ARC on my iPhone not connecting to my Roon Server. I have no issues with Roon at home on the Roon app.

 
## Describe your network setup
 

Rogers Xfinity gen 3 router

  ![](https://api.typeform.com/responses/files/5a31ae7f903d1101f2bd426eea0889cecaf9ecaf95874e2b748e24135647585e/Screenshot_2026_09_14_at_11.59.22_AM.png)

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**Author:** ![noris](https://community.roonlabs.com/user_avatar/community.roonlabs.com/noris/32/161230_2.png) [@noris](https://community.roonlabs.com/u/noris)\
**Post date:** [September 14, 2026, 8:18pm UTC](https://community.roonlabs.com/t/roon-arc-on-iphone-not-connecting-to-roon-server-ref-ss7han/324903/2 "2026-09-14T20:18:28Z")

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Hello @Kerry ,

Thanks for reaching out. It looks like port forwarding could not able to be configured automatically. Can you please try to set up a manual port forwarding rule for your router? You can find instructions on how to do this here:

> **[How to Use Port Forwarding with the Rogers Xfinity App - Rogers](https://www.rogers.com/support/internet/use-port-forwarding-with-rogers-xfinity)**
>
> Learn more about port forwarding and how to use Rogers Xfinity to set up port forwarding to enable applications like video games, video conferencing and more.

Let us know if that helps!

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<div class="post-metadata">

**Author:** ![Kerry](https://community.roonlabs.com/letter_avatar/kerry/32/5_5575768a8748004e209b776fc1b2916d.png) [@Kerry](https://community.roonlabs.com/u/Kerry)\
**Post date:** [September 14, 2026, 9:39pm UTC](https://community.roonlabs.com/t/roon-arc-on-iphone-not-connecting-to-roon-server-ref-ss7han/324903/3 "2026-09-14T21:39:13Z")

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That worked. Thanks!

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**Author:** ![system](https://roon-community-uploads.s3.amazonaws.com/original/3X/d/e/deefbd9083c99c82bbf2dd3f873f52a49f5db881.png) [@system](https://community.roonlabs.com/u/system)\
**Post date:** [September 15, 2026, 9:39pm UTC](https://community.roonlabs.com/t/roon-arc-on-iphone-not-connecting-to-roon-server-ref-ss7han/324903/4 "2026-09-15T21:39:46Z")

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