NetScaler stops accepting connections and connection to OWA site (load balancing virtual server) gets disrupted unless NetScaler is restarted.

From analysis of tech support file it is discovered that the NetScaler has two interfaces enabled on the same network. To resolve this issue disable one of the interfaces.

Problem Cause

Having two interfaces on the NetScaler connected to the same switch in the same VLAN and no VLANs configured on the NetScaler will cause looping issues. In order to avoid these issues, LACP should be configured for both connections from the NetScaler to the switch.

Troubleshooting Methodology

1. From analysis of tech support file, conflict with the interfaces was found:
   nic_tot_bdg_mac_moved occurred.

   This means that the NetScaler has two interfaces enabled on the same network. This is not recommended unless LACP channel is created.

2. Disabled one of the interface 1/1.

3. Problem still persists and connectivity to the NetScaler drops.

4. Enabled interface 1/1 through console and from the CLI disabled interface 0/1 which resolved the issue.