# MacOS Sequoia Firewall Issues **URL:** https://forum.syncthing.net/t/macos-sequoia-firewall-issues/22849 **Category:** Support **Created:** [September 22, 2024, 7:25pm UTC](https://forum.syncthing.net/t/macos-sequoia-firewall-issues/22849 "2024-09-22T19:25:27Z") **Posts on this page:** 7 **Page:** 1
### Author: ![cjf](https://forum.syncthing.net/letter_avatar_proxy/v4/letter/c/87869e/32.png) [@cjf](https://forum.syncthing.net/u/cjf) #### Post date: [September 22, 2024, 7:25pm UTC](https://forum.syncthing.net/t/macos-sequoia-firewall-issues/22849/1 "2024-09-22T19:25:27Z")
I am encountering issues with the default Syncthing client after upgrading to MacOS Sequoia. For some reason, it can’t discover any of my other devices (all running various flavors of Linux, if that helps). If I turn the firewall off, it works as expected. I had no problems with firewall prior to upgrading. Has anyone else had this problem? Running v1.27.12-1 across all my devices and it works out of the box everywhere else. ---
### Author: ![calmh](https://forum.syncthing.net/user_avatar/forum.syncthing.net/calmh/32/15311_2.png) [@calmh](https://forum.syncthing.net/u/calmh) #### Post date: [September 22, 2024, 7:28pm UTC](https://forum.syncthing.net/t/macos-sequoia-firewall-issues/22849/2 "2024-09-22T19:28:38Z")
Check that Syncthing is allowed incoming connections in the firewall settings? ![Screenshot 2024-09-22 at 21.27.55](https://forum-uploads.syncthingcdn.net/original/3X/2/1/21fb9676fad119d0f31e3232092e150ed507fcfe.jpeg) (That’s a lot of stuff that’s allowed through I didn’t know about 😨) ---
### Author: ![cjf](https://forum.syncthing.net/letter_avatar_proxy/v4/letter/c/87869e/32.png) [@cjf](https://forum.syncthing.net/u/cjf) #### Post date: [September 22, 2024, 7:56pm UTC](https://forum.syncthing.net/t/macos-sequoia-firewall-issues/22849/3 "2024-09-22T19:56:59Z")
I have Syncthing.app allowed, do I need to have the executable instead? ---
### Author: ![calmh](https://forum.syncthing.net/user_avatar/forum.syncthing.net/calmh/32/15311_2.png) [@calmh](https://forum.syncthing.net/u/calmh) #### Post date: [September 22, 2024, 8:14pm UTC](https://forum.syncthing.net/t/macos-sequoia-firewall-issues/22849/4 "2024-09-22T20:14:42Z")
No idea, sorry. ---
### Author: ![bt90](https://forum.syncthing.net/user_avatar/forum.syncthing.net/bt90/32/18565_2.png) [@bt90](https://forum.syncthing.net/u/bt90) #### Post date: [September 24, 2024, 10:35am UTC](https://forum.syncthing.net/t/macos-sequoia-firewall-issues/22849/5 "2024-09-24T10:35:12Z")
> ---
### Author: ![cjf](https://forum.syncthing.net/letter_avatar_proxy/v4/letter/c/87869e/32.png) [@cjf](https://forum.syncthing.net/u/cjf) #### Post date: [September 24, 2024, 5:12pm UTC](https://forum.syncthing.net/t/macos-sequoia-firewall-issues/22849/6 "2024-09-24T17:12:28Z")
I was able to figure it out. I needed to add the syncthing _executable_ (inside Syncthing.app) to firewall allowed list as well as Syncthing.app An easy way to do this (for anyone with a similar issue) is: 1. Go to Finder → Applications 2. Right-click on Syncthing.app; show package contents 3. Make a shortcut to Contents in the left sidebar 4. Go to firewall settings 5. Add plus button, navigate to Contents in left sidebar, then MacOS → syncthing (the exec) Hope this helps ---
### Author: ![system](https://forum-uploads.syncthingcdn.net/original/2X/0/0b50e0a202b22ae6a67190759e8c868805b8ed9f.png) [@system](https://forum.syncthing.net/u/system) #### Post date: [October 24, 2024, 5:13pm UTC](https://forum.syncthing.net/t/macos-sequoia-firewall-issues/22849/7 "2024-10-24T17:13:21Z")
This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.