Mitel SIP phones unexpectedly rebooting after a UniFi update? The Device Auto-Recovery feature may be the cause: if UniFi detects no traffic for an extended period, it may automatically power cycle the PoE port. I explain which devices are affected and how to disable Auto-Recovery for individual phones.
An Aruba 2930M switch cluster encountered an “Inconsistent Value” error when changing the default VLAN 1. The issue was traced to a corrupt VLAN 1 configuration. The solution involved reimporting the running config via WebGUI and CLI, successfully resolving the issue without needing to rebuild or reboot the switch stack.
On Sophos RED endpoints, a primary and secondary IP address or hostname can be defined as peer. However, if a RED tunnel is set up between two Sophos XG(S) firewalls, only one IP address or host name can be defined on the client side. This means that redundancies in the WAN interfaces on the server…
In some Windows 10 and Windows 11 installations, the PDF reader can no longer be changed. When trying to change the default PDF program via the settings, Windows immediately resets it to Edge. This article addresses a possible cause of the problem and offers a possible solution. Error description The default program for PDF documents…
Western Digital hack makes WD My Cloud Home series NAS unusable. A little help for urgent file access.
If the CSR for a certificate was created on a Sophos firewall, the private key cannot be exported directly. A tutorial on how to export without using any shell black magic.
The new HPE SmartArray MegaRAID controllers from Broadcom can’t be administered via Smart Storage Administrator. A guide to configuring volumes without HPE MR Storage Administrator Offline version.
Installing Sophos UTM Home on a Sophos ASG appliance. Or how to work around the error “Cannot use ASG software license on ASG1xx device.
MS Exchange servers, which are located directly behind a NAT, are insufficiently protected against the exploitation of security vulnerabilities. A short appeal to admins and decision makers to use reverse proxies or web application firewalls (WAF).
A relatively inexpensive Synology NAS can be extended with Microsoft 365 services to create a very comprehensive hybrid cloud solution for SMBs. A small How-To