# Plexamp - Problems to control another instance

**URL:** <https://forums.plex.tv/t/plexamp-problems-to-control-another-instance/777866>\
**Category:** Plex Labs\
**Tags:** plexamp\
**Created:** [February 23, 2022, 10:36am UTC](https://forums.plex.tv/t/plexamp-problems-to-control-another-instance/777866 "2022-02-23T10:36:42Z")\
**Posts on this page:** 20\
**Page:** 1

<div class="post-metadata">

**Author:** ![gv314plex](https://avatars.discourse-cdn.com/v4/letter/g/a587f6/32.png) [@gv314plex](https://forums.plex.tv/u/gv314plex)\
**Post date:** [February 23, 2022, 10:36am UTC](https://forums.plex.tv/t/plexamp-problems-to-control-another-instance/777866/1 "2022-02-23T10:36:42Z")

</div>

Dear friends, I am trying to use the Plexamp remote control feature and it really looks promising.  
Unfortunately I have encountered several times the “Could not connect to player” error.  
I am currently using one Windows 10 PC, one iOS iPhone and a Mac, on the same local network and all of them running the latest Plexamp (4.0.1).  
Currently I cannot connect any of them to control the iPhone, even after closing and reopening the app. On the Mac side I get the following log (excerpt)

```auto
Feb 23, 2022 11:33:27.313 [Javascript] INFO - DEVICE: Player connection worked for Palantir ~ http://192.168.129.248:49239
Feb 23, 2022 11:33:27.314 [Javascript] WARNING - Player: Invalid xml 500 Internal Server Error
Feb 23, 2022 11:33:28.350 [Javascript] WARNING - PLAYER: Error issuing request to player Palantir: /player/timeline/poll?wait=0&includeMetadata=1&commandID=357&type=music HTTP status 500 {
  id: 1248,
  status: 500,
  statusText: '',
  bytesWritten: 25,
  data: '500 Internal Server Error',
  headers: { 'content-length': '25', uwebsockets: '19' }
}
Feb 23, 2022 11:33:28.350 [Javascript] INFO - DEVICE: Finding best connection for Palantir b3ff4991-85eb-4724-a3c2-d3168b79d05c.
Feb 23, 2022 11:33:28.350 [0x0c602e00] DEBUG - Networking: Create request 1249: (GET http://192.168.129.248:49239/resources).
Feb 23, 2022 11:33:28.373 [0x10fe2000] DEBUG - Networking: Completed request 1249: (GET http://192.168.129.248:49239/resources) with code 200 (have 328 bytes) in 22 ms.

```

and the block repeats many times.

Any suggestion to avoid it?

Thank you in advance  
Gaetano

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<div class="post-metadata">

**Author:** ![pssturges](https://avatars.discourse-cdn.com/v4/letter/p/85f322/32.png) [@pssturges](https://forums.plex.tv/u/pssturges)\
**Post date:** [February 23, 2022, 11:01am UTC](https://forums.plex.tv/t/plexamp-problems-to-control-another-instance/777866/2 "2022-02-23T11:01:25Z")

</div>

Was just about to post that I was having similar issues. I have a MacBook Air (Fairly old so still on Big Sur), iPadPro (15.3.1) and iPhone (15.3.1)all using Plexamp 4.01. Both ways between MacBook and iPad work great. iPad and iPhone don’t even find each other. iPhone finds MacBook but won’t connect.

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<div class="post-metadata">

**Author:** ![gv314plex](https://avatars.discourse-cdn.com/v4/letter/g/a587f6/32.png) [@gv314plex](https://forums.plex.tv/u/gv314plex)\
**Post date:** [February 23, 2022, 11:35am UTC](https://forums.plex.tv/t/plexamp-problems-to-control-another-instance/777866/3 "2022-02-23T11:35:41Z")

</div>

In my case, they all find one another but, for the time being, none connects to any other. Till a couple of hours ago Mac was happily controlling the iPhone but the PC was unable to control any other

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<div class="post-metadata">

**Author:** ![elan](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/elan/32/5_2.png) [@elan](https://forums.plex.tv/u/elan)\
**Post date:** [February 23, 2022, 8:23pm UTC](https://forums.plex.tv/t/plexamp-problems-to-control-another-instance/777866/4 "2022-02-23T20:23:07Z")

</div>

Weird, I think we’d need to see the logs from the other side to understand where the error is coming from.

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<div class="post-metadata">

**Author:** ![pssturges](https://avatars.discourse-cdn.com/v4/letter/p/85f322/32.png) [@pssturges](https://forums.plex.tv/u/pssturges)\
**Post date:** [February 24, 2022, 10:08am UTC](https://forums.plex.tv/t/plexamp-problems-to-control-another-instance/777866/5 "2022-02-24T10:08:31Z")

</div>

Here’s my logs for my iPad and iPhone, couldn’t work out how to find my log for MacOS?

Anyhow, I started each app consecutively, then did a scan on each app. Once again, the iPhone and iPad couldn’t find each other. Weirdly, the Mac purportedly found my iPhone but this was actually the iPad when it successfully connected. iPad successfully connected to Mac. iphone could not connect to Mac. Hope this helps. Happy to provide Mac log when I know how to get it.

[Plexamp-ipad.log](https://forums.plex.tv/uploads/short-url/ysDCxZstMDwpMI3TMG6mjwFeWH.log) (147.5 KB)  
[Plexamp-iphone.log](https://forums.plex.tv/uploads/short-url/gITZstFWgcxSJsEIu2o420QXMc2.log) (194.1 KB)

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<div class="post-metadata">

**Author:** ![gv314plex](https://avatars.discourse-cdn.com/v4/letter/g/a587f6/32.png) [@gv314plex](https://forums.plex.tv/u/gv314plex)\
**Post date:** [February 24, 2022, 8:34pm UTC](https://forums.plex.tv/t/plexamp-problems-to-control-another-instance/777866/6 "2022-02-24T20:34:40Z")

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Hi,  
4.0.2 shows the same problem.  
I have an iPhone connected to a USB DAC and a Mac, both running Plexamp 4.0.2. I try to control the iPhone from the Mac and get the “Could not connect to the player”. Here are the logs on the iPhone side.  
[Plexamp-Logs-2022-02-24-1.zip](https://forums.plex.tv/uploads/short-url/zz0E4BvtcEGL3EL5JUHOY1ZjykM.zip) (212.8 KB)

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<div class="post-metadata">

**Author:** ![Stessull](https://avatars.discourse-cdn.com/v4/letter/s/cab0a1/32.png) [@Stessull](https://forums.plex.tv/u/Stessull)\
**Post date:** [February 27, 2022, 11:34am UTC](https://forums.plex.tv/t/plexamp-problems-to-control-another-instance/777866/7 "2022-02-27T11:34:11Z")

</div>

Same problem here when trying to control my iPad from either Mac OS or Android phone I get the message “could not connect to player”. I can control Mac OS from Android phone however. There were no problems with the initial release of v4

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<div class="post-metadata">

**Author:** ![elan](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/elan/32/5_2.png) [@elan](https://forums.plex.tv/u/elan)\
**Post date:** [February 27, 2022, 7:22pm UTC](https://forums.plex.tv/t/plexamp-problems-to-control-another-instance/777866/8 "2022-02-27T19:22:31Z")

</div>

> [@Stessull](#):
>
> Same problem here

please post logs, it’s impossible to tell what the issue is without them. many different things can lead to a problem connecting.

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<div class="post-metadata">

**Author:** ![elan](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/elan/32/5_2.png) [@elan](https://forums.plex.tv/u/elan)\
**Post date:** [February 27, 2022, 7:56pm UTC](https://forums.plex.tv/t/plexamp-problems-to-control-another-instance/777866/9 "2022-02-27T19:56:27Z")

</div>

> [@gv314plex](#):
>
> 4.0.2 shows the same problem.

OK, so I see a good error in your logs:

```auto
Feb 24, 2022 21:31:08.067 [Javascript] ERROR - HttpServer: 500 Internal Server Error (/player/timeline/poll): Cannot convert undefined value to object

```

However, I can’t see to figure out how to reproduce the issue. I’ve tried connecting to iOS while it was playing something from a server, and from TIDAL, and neither of them caused that error.

This implies the issue is on the _controlled_ side rather than the controller, so now we just need to figure out what’s different about your playback.

I assume you see the error only while something is playing? Can you narrow it any further? Does analyzing the album make any difference?

[I’ll be away all next week, so apologies if it seems like I’m not paying attention.]

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<div class="post-metadata">

**Author:** ![elan](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/elan/32/5_2.png) [@elan](https://forums.plex.tv/u/elan)\
**Post date:** [February 27, 2022, 7:59pm UTC](https://forums.plex.tv/t/plexamp-problems-to-control-another-instance/777866/10 "2022-02-27T19:59:01Z")

</div>

> [@pssturges](#):
>
> Here’s my logs for my iPad and iPhone, couldn’t work out how to find my log for MacOS?

There’s not a lot of stuff in here; the iPhone log shows it sending playback over to `Marion's MacBook Air` but that doesn’t seem to start successfully, would need that log to be able to comment further. macOS logs are in ~/Library/Logs/Plexamp.

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<div class="post-metadata">

**Author:** ![pssturges](https://avatars.discourse-cdn.com/v4/letter/p/85f322/32.png) [@pssturges](https://forums.plex.tv/u/pssturges)\
**Post date:** [February 28, 2022, 11:14pm UTC](https://forums.plex.tv/t/plexamp-problems-to-control-another-instance/777866/11 "2022-02-28T23:14:39Z")

</div>

MacBook log. Thanks  
[Plexamp-Macbook.log](https://forums.plex.tv/uploads/short-url/lHpJZICAdzobLEE4xpuBECzsoHB.log) (233.7 KB)

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<div class="post-metadata">

**Author:** ![gv314plex](https://avatars.discourse-cdn.com/v4/letter/g/a587f6/32.png) [@gv314plex](https://forums.plex.tv/u/gv314plex)\
**Post date:** [March 1, 2022, 2:01pm UTC](https://forums.plex.tv/t/plexamp-problems-to-control-another-instance/777866/12 "2022-03-01T14:01:55Z")

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Hi,  
thank you for taking care of this issue. The reported problem happens at connection time, when I try to select the _controlled_ device. I am never able to select the iPhone as controlled

Hope this helps, anyway I can provide you any information you may need to help

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<div class="post-metadata">

**Author:** ![gv314plex](https://avatars.discourse-cdn.com/v4/letter/g/a587f6/32.png) [@gv314plex](https://forums.plex.tv/u/gv314plex)\
**Post date:** [March 1, 2022, 4:58pm UTC](https://forums.plex.tv/t/plexamp-problems-to-control-another-instance/777866/13 "2022-03-01T16:58:10Z")

</div>

I think I have some news about this topic.  
After upgrading to 4.0.3 I was experiencing the very same problem so I decided to completely uninstall Plexamp from the iPhone and reinstall it. Well, magic or not, it started working as being controlled by the Plexamp instance on the Mac. I had already tried this when upgrading from 4.0.1 to 4.0.2 but it didn’t work.  
I don’t know why it worked now but the reinstallation must have done some useful cleanup, let’ s see if it is stable. I will come back with more news in case of any.

Happy listening!  
Gaetano

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<div class="post-metadata">

**Author:** ![elan](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/elan/32/5_2.png) [@elan](https://forums.plex.tv/u/elan)\
**Post date:** [March 3, 2022, 2:17am UTC](https://forums.plex.tv/t/plexamp-problems-to-control-another-instance/777866/14 "2022-03-03T02:17:40Z")

</div>

reinstalling is very likely to have only “fixed” the issue by coincidence 😅 we will do some poking into logs posted and see what’s going on.

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<div class="post-metadata">

**Author:** ![gv314plex](https://avatars.discourse-cdn.com/v4/letter/g/a587f6/32.png) [@gv314plex](https://forums.plex.tv/u/gv314plex)\
**Post date:** [March 3, 2022, 10:59pm UTC](https://forums.plex.tv/t/plexamp-problems-to-control-another-instance/777866/15 "2022-03-03T22:59:47Z")

</div>

Well, yes, I agree with you. Anyway, after a couple of days of tests the remote control still works, I know this doesn’t help diagnose the fault but makes happy the part of me that wants to listen to the music 😉

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<div class="post-metadata">

**Author:** ![elan](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/elan/32/5_2.png) [@elan](https://forums.plex.tv/u/elan)\
**Post date:** [March 11, 2022, 1:28am UTC](https://forums.plex.tv/t/plexamp-problems-to-control-another-instance/777866/16 "2022-03-11T01:28:52Z")

</div>

Is there anyone here still seeing this issue (specifically the `Cannot convert undefined value to object` error), and willing to help diagnose it? If so, DM me.

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<div class="post-metadata">

**Author:** ![pssturges](https://avatars.discourse-cdn.com/v4/letter/p/85f322/32.png) [@pssturges](https://forums.plex.tv/u/pssturges)\
**Post date:** [March 11, 2022, 7:51am UTC](https://forums.plex.tv/t/plexamp-problems-to-control-another-instance/777866/17 "2022-03-11T07:51:03Z")

</div>

Well after trying this randomly over the last few weeks and getting the same results, today its all working flawlessly. No idea what the cause of the problem was or why it’s fixed 🤷‍♂️

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<div class="post-metadata">

**Author:** ![elan](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/elan/32/5_2.png) [@elan](https://forums.plex.tv/u/elan)\
**Post date:** [March 11, 2022, 8:38am UTC](https://forums.plex.tv/t/plexamp-problems-to-control-another-instance/777866/18 "2022-03-11T08:38:58Z")

</div>

I mean, as a developer things that fix themselves are like god-sent.

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<div class="post-metadata">

**Author:** ![gv314plex](https://avatars.discourse-cdn.com/v4/letter/g/a587f6/32.png) [@gv314plex](https://forums.plex.tv/u/gv314plex)\
**Post date:** [March 11, 2022, 10:52am UTC](https://forums.plex.tv/t/plexamp-problems-to-control-another-instance/777866/19 "2022-03-11T10:52:51Z")

</div>

Hi, I may be able to make some more tests this weekend, I am planning to setup a new listening point. In case of troubles will let you know 🙂

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<div class="post-metadata">

**Author:** ![jospkelly](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/jospkelly/32/308060_2.png) [@jospkelly](https://forums.plex.tv/u/jospkelly)\
**Post date:** [March 30, 2022, 8:00pm UTC](https://forums.plex.tv/t/plexamp-problems-to-control-another-instance/777866/20 "2022-03-30T20:00:58Z")

</div>

@elan –  
I’ve updated to Plexamp 4.1.0 (I did it last week). Right after updating, I was initially able to use my iPhone to remote control Plexamp on my iMac. Then later that day, and continuing to now, I am unable to connect to my instance of Plexamp on my iMac. I get this message:.

 ![image](https://global.discourse-cdn.com/plex/original/4X/3/a/e/3aead8b854636b1a51c0b00e1e5b7849cfd6334b.jpeg)

Remote Control has worked intermittently for me (mostly not work) since February.  
I am including the Plexamp log from my phone if that helps.  
[Plexamp\_ios.log](https://forums.plex.tv/uploads/short-url/n24Xz45HtqrtJC9UKvvvWd6AIa.log) (138.9 KB)

**System Details:**  
iPhone 13 Mini  
iOS 15.1.1  
Plexamp Version 4.1.0  
WiFi OFF  
iMac (Retina 5K, 27-inch, Late 2014)  
macOS Bir Sur 11.6.4 (20G417)  
Plexamp Version 4.1.0  
Plex Media Server Version 1.25.8.5663

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