---
title: "Reconfiguring the Collector HA Pair"
canonical: "https://docs.infoblox.com/space/NetMRI753/42010687/Reconfiguring%20the%20Collector%20HA%20Pair"
format: markdown
---
To reconfigure the collector HA pair, complete the following:

1. Log in to the collector CLI as admin.
2. Run the `reset tunclient` command:
  `col2 (primary)> reset tunclient`
  `Launching "show version" on "172.19.2.62"...`
  `Notice: This operation will clear all Tunnel client`
  `configuration and shut down the local Tunnel service.`
  `Continue? (y/n) [n]: y`
  `+++ Stopping OpenVPN Service ... OK`
  `+++ Configuring OpenVPN Service ... OK`
  `+++ Clearing Client Config ... OK`
  `+++ Adjusting ACLs ... OK`
  `Launching "failover tunclient reset" on "172.19.2.62"...`
3. Run the `configure tunclient` command and configure it with OC VIP address (Server Public Virtual Name or VIP address):
  `col2(primary)> config tunclient`
  `NOTICE: The inactivity timeout is being disabled temporarily while this command is run.`
  `Launching "show version" on "172.19.2.62"...`
  `NOTICE: The time zone on this system is US/Pacific.`
  `This MUST match the Operation Center time zone for registration to be successful.`
  `If the time zones are not equal, you must first use "configure server" to set`
  `the collector time zone to match.`
  `PLEASE NOTE: Changing the time zone WILL REQUIRE A SYSTEM REBOOT.`
  `Do you want to continue registration? (y/n) [n]: y`
  `+++ Configuring Tunnel Registration Settings`
  `Registration Server/IP [e.g., example.com]: 172.19.2.66`
  `Registration protocol (http|https) [https]:`
  `Registration username: admin`
  `Registration password:`
  `Register this system? (y/n) [y]:y`
  `.......`
  `This is going to take a long time (really long, about 40 + minutes)`
4. Repeat the above steps for each collector.

The NetMRI system (OC and two collectors) is now migrated as a failover pair.

> ⚠️ **Note**
> ⚠️ 
> ⚠️ If devices were discovered from both collectors, e.g. when a device has a few interfaces, these devices are displayed in grey without a sim link to the device viewer on the collector which did not discover first. After the system is migrated, the following issue is observed for one of the collectors (second): On the **Network Explorer** > **Discovery **page, the devices listed on the left from the initial collection and discovered by both collectors cannot be discovered or deleted using the **Discover Now** or **Delete** button. However, you can discover them from the  **Settings** icon > **Discovery Settings** > **Seed Routers**/**CIDR**.