# \[Bug\] GL-BE3600 (Slate 7) v4.10.1: toggling Guest Network removes the bridge port from a custom VLAN subnet

**URL:** <https://forum.gl-inet.com/t/bug-gl-be3600-slate-7-v4-10-1-toggling-guest-network-removes-the-bridge-port-from-a-custom-vlan-subnet/72445>\
**Category:** Router\
**Created:** [October 30, 2026, 1:12am UTC](https://forum.gl-inet.com/t/bug-gl-be3600-slate-7-v4-10-1-toggling-guest-network-removes-the-bridge-port-from-a-custom-vlan-subnet/72445 "2026-10-30T01:12:24Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![dape](https://forum-assets.gl-inet.com/letter_avatar_proxy/v4/letter/d/f14d63/32.png) [@dape](https://forum.gl-inet.com/u/dape)\
**Post date:** [October 30, 2026, 1:12am UTC](https://forum.gl-inet.com/t/bug-gl-be3600-slate-7-v4-10-1-toggling-guest-network-removes-the-bridge-port-from-a-custom-vlan-subnet/72445/1 "2026-10-30T01:12:24Z")

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**Title:** GL-BE3600 (Slate 7) v4.10.1: toggling Guest Network removes the bridge port from a custom VLAN subnet

**Device:** GL-BE3600 (Slate 7)  
**Firmware:** 4.10.1 (OpenWrt 23.05-SNAPSHOT)

**Setup**

Under Network → Subnet I have four networks:

- Main Network: VLAN 1, 192.168.50.0/24, LAN + Main SSID
- Guest Network: VLAN 10, 172.16.10.0/24, LAN + Guest SSID (used as my management network)
- IoT Network: VLAN 40, 192.168.60.0/24
- Servers: custom subnet, VLAN 30, 172.16.30.0/24, LAN interface only

The LAN port is a trunk to a managed switch: VLAN 1 untagged, VLANs 10 and 30 tagged.

**Steps to reproduce**

1. Everything working: devices on all VLANs reachable.
2. Turn the Guest Network off and back on with the toggle in the admin panel.

**Expected:** Only the guest SSID goes down and comes back up. Other networks are unaffected.

**Actual:** Every device on the Servers network (VLAN 30) drops offline and is unreachable from other networks and from the router itself. VLAN 1 and VLAN 10 keep working over the same trunk port.

In LuCI (Network → Interfaces), `br-vlan30` is still up with 172.16.30.1/24, but it has **no bridge ports attached**. `br-guest` and `br-lan` still have their ports. It looks like re-applying the guest network rebuilds the bridges and doesn’t re-add [port name, e.g. eth1.30] to `br-vlan30`.

The firewall zones and rules were unchanged and correct.

**Workaround**

In Network → Subnet, open Edit on the Servers subnet and click Apply without changing anything. This rebuilds `br-vlan30` with the LAN port attached, and VLAN 30 works again immediately.

Happy to provide logs or config output if useful.