Definition Update for Windows Defender – infinite loop

I recently came across an odd situation involving Windows Server 2016 and WSUS updates. On the WSUS server, I typically see several new Definition Updates for Windows Defender (KB2267602) every day. E.g. on 2017-11-26, Microsoft released: 1.257.995.0 1.257.996.0 1.257.998.0 1.257.1001.0 1.257.1003.0 1.257.1005.0 The update with the highest number will supersede the others, so I only …

Upgrading Cisco Unity Express

I recently upgraded an NME-CUE (Cisco Unity Express Enhanced Network Module) from version 3.2.1 to 8.6.7. This module was moving from a 3845 router (running CUCME 7.1) to a 3945 router (running CUCME 10.5), so these versions match the compatibility matrix. On the whole, this went fairly smoothly, but there are a couple of issues …

Native IPv6 in dd-wrt

As I mentioned in a previous post, I installed dd-wrt (kernel 2.6, VOIP, build 14896) on my wireless router (Linksys WRT320N), which connected to a VDSL modem using PPPoE. After that, it worked fine for IPv4, so I had the same functionality as the original Linksys firmware. However, the purpose of the exercise was to …

CWTS

Last month, I took the Certified Wireless Technology Specialist (CWTS) exam. This is issued by CWNP, who are similar to CompTIA, i.e. it’s a vendor-neutral exam rather than being based around specific technology (e.g. Cisco access points). The CWNP website says: “The CWTS certification validates the knowledge of enterprise WLAN sales and support professionals who …

Installing dd-wrt on a Linksys WRT320N wireless router

Back in 2011 I switched ISPs to A&A, primarily because they support native IPv6. Incidentally, 3 years on I see that you still can’t get IPv6 from Zen, so I made the right choice by switching. Windows has had IPv6 support included by default since 2006 (i.e. Vista onwards), so the missing piece of the …