High availability

CARP and Unbound DNS response

Started by rudiratlos63

Replies: 8
Views: 4,929

February 07, 2026, 06:00:17 PM
by rudiratlos63

one of the IP refused to be backup

Started by Edy

Replies: 8
Views: 2,983

March 27, 2024, 04:03:38 PM
by Monviech (Cedrik)

Can't connect HA

Started by paul199513

Replies: 8
Views: 4,343

November 16, 2022, 05:15:55 PM
by Patrick M. Hausen

<Solved>HA failover user connection interrupted

Started by i.schmidt

Replies: 8
Views: 11,020

September 12, 2023, 11:36:04 AM
by i.schmidt

Opinion of your HA functionality

Started by terrrorr

Replies: 8
Views: 9,337

March 30, 2021, 12:05:52 PM
by franco

Problem with pfSync

Started by danbet

Replies: 8
Views: 10,321

September 20, 2024, 07:39:51 PM
by mccasian

DNS(Addguard) not working with CARP

Started by weidah

Replies: 9
Views: 4,870

May 09, 2024, 06:12:42 PM
by mimugmail

Red Square in /ui/core/hasync_status on OpenVPN instances but sync seems fine

Started by Zugschlus

Replies: 9
Views: 16,583

November 07, 2025, 04:37:05 PM
by Zugschlus

Upgrade OPNsense HA cluster remotely

Started by Elia99

Replies: 9
Views: 5,452

July 18, 2024, 03:45:01 PM
by Elia99

CARP Master randomly gets set to 1200 demotion level

Started by mmaxwell

Replies: 9
Views: 7,264

November 25, 2024, 06:01:13 PM
by itngo

HA Pair - 2nd having connectivity problems

Started by tjk

Replies: 9
Views: 3,994

June 02, 2024, 08:44:00 PM
by Monviech (Cedrik)

CARP connections to switches in MLAG

Started by Haddock27

Replies: 9
Views: 10,286

July 25, 2024, 12:41:40 PM
by itngo

opnsense 24.1.1 ha carp works, but a one interface of the backup node is master

Started by Dataaja95

Replies: 9
Views: 6,195

March 01, 2024, 06:56:15 PM
by lshantz

CARP not preempting despite "disable preempt" not checked

Started by MaeveFirstborn

Replies: 10
Views: 22,438

May 27, 2025, 05:20:46 PM
by bugleboy

No Failover on WAN Interface down

Started by meschmesch

Replies: 10
Views: 7,397

March 14, 2022, 05:29:50 PM
by lilsense

Sync states without carp

Started by prokocool69

Replies: 10
Views: 6,322

December 27, 2023, 08:13:29 AM
by prokocool69

question about backup firewall in High availability

Started by trinitech

Replies: 10
Views: 5,720

August 03, 2022, 11:57:05 AM
by Patrick M. Hausen

Unbound DNS registration not working for failover DHCP configuration

Started by gromit

Replies: 11
Views: 10,438

December 19, 2023, 11:36:27 PM
by amir

CARP/HA on physical Opnsense and Virtual.

Started by byDoks

Replies: 11
Views: 28,936

August 08, 2025, 04:08:24 PM
by dirac1

Filtering routes with FRR and OSPF

Started by clarknova

Replies: 11
Views: 20,107

February 07, 2024, 10:24:47 PM
by mimugmail