# Less devices and "Connection to ... closed: reading length: EOF"

**URL:** https://forum.syncthing.net/t/less-devices-and-connection-to-closed-reading-length-eof/18284
**Category:** Support
**Created:** [April 10, 2022, 12:52pm UTC](https://forum.syncthing.net/t/less-devices-and-connection-to-closed-reading-length-eof/18284 "2022-04-10T12:52:09Z")
**Posts on this page:** 5
**Page:** 1

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### Author: ![elbowz](https://forum.syncthing.net/user_avatar/forum.syncthing.net/elbowz/32/11821_2.png) [@elbowz](https://forum.syncthing.net/u/elbowz)
#### Post date: [April 10, 2022, 12:52pm UTC](https://forum.syncthing.net/t/less-devices-and-connection-to-closed-reading-length-eof/18284/1 "2022-04-10T12:52:09Z")

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I have 3 devices in the same LAN and 2 outside.

I don’t understand why one device (thinkpad) in LAN see only devices inside the LAN (it don’t see the 2 outside)…and report “Connection to … closed: reading length: EOF” in the log:

[https://pastebin.com/R4rMnDHj](https://pastebin.com/R4rMnDHj)

The others 2 in LAN see all device (inside and outside), here an example, with same version of Syncthing:

[https://pastebin.com/Lv7tL0BX](https://pastebin.com/Lv7tL0BX)

On the left device with “compromised” discovery

 ![screen1](https://forum-uploads.syncthingcdn.net/original/2X/7/780abca5cacc61bd64ca4f831acae4e529a1485d.png)

The router seems works good. I have also try to using smartphone as hotspot (ie. put device outside the LAN), but the thinkpad see only those 2 devices.

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<div class="post-metadata">

### Author: ![elbowz](https://forum.syncthing.net/user_avatar/forum.syncthing.net/elbowz/32/11821_2.png) [@elbowz](https://forum.syncthing.net/u/elbowz)
#### Post date: [April 10, 2022, 2:40pm UTC](https://forum.syncthing.net/t/less-devices-and-connection-to-closed-reading-length-eof/18284/2 "2022-04-10T14:40:29Z")

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maybe can be useful:

 ![screen](https://forum-uploads.syncthingcdn.net/original/2X/0/0e96aa1e557b79583732ac7c9c63ba3d2b8103d8.jpeg)

```plaintext
thinkpad ~ % nc -z -v 95.233.eightytwo.138 46379
host-95-233-eightytwo-138.retail.telecomitalia.it [95.233.eightytwo.138] 46379 open

```

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<div class="post-metadata">

### Author: ![tomasz86](https://forum.syncthing.net/letter_avatar_proxy/v4/letter/t/96bed5/32.png) [@tomasz86](https://forum.syncthing.net/u/tomasz86)
#### Post date: [April 10, 2022, 5:54pm UTC](https://forum.syncthing.net/t/less-devices-and-connection-to-closed-reading-length-eof/18284/3 "2022-04-10T17:54:31Z")

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Please post full screenshots of the Syncthing Web GUI from all devices. Are all of them located in the same network? Are you using the default settings, or have you, by any change, modified some of the network-related options, e.g. regarding discovery, relaying, etc.?

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<div class="post-metadata">

### Author: ![elbowz](https://forum.syncthing.net/user_avatar/forum.syncthing.net/elbowz/32/11821_2.png) [@elbowz](https://forum.syncthing.net/u/elbowz)
#### Post date: [April 12, 2022, 8:19am UTC](https://forum.syncthing.net/t/less-devices-and-connection-to-closed-reading-length-eof/18284/4 "2022-04-12T08:19:57Z")

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Thanks @tomasz86!

I have removed the “not discovered devices” by both side, re-add them, and now all works like a charm.

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### Author: ![system](https://forum-uploads.syncthingcdn.net/original/2X/0/0b50e0a202b22ae6a67190759e8c868805b8ed9f.png) [@system](https://forum.syncthing.net/u/system)
#### Post date: [May 12, 2022, 8:20am UTC](https://forum.syncthing.net/t/less-devices-and-connection-to-closed-reading-length-eof/18284/5 "2022-05-12T08:20:15Z")

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