At work we switched from a Cisco Catalyst 3560G to a Catalyst 4500E a few weeks ago. Remember to issue the spanning-tree extend system-id command prior to enabling VTP version 3. During the test period, the Icinga instances logged packet losses of varying degree around the clock when doing ICMPv6 pings.

Read More → Lessons learned on Cisco Catalyst 4500E

After installing KB3114409, Outlook 2010 started only in safe mode, even when told not to do so. Removing KB3114409 solved the problem. QA at Microsoft keeps lagging behind. A few weeks ago, HTML email made Outlook 2013 crash due to “improved” font handling, courtesy of KB3097877. Others were unlucky and couldn’t login until KB3097877 was […]

Read More → Outlook 2010 and KB3114409