Cisco switch “inline power denied”

I had a curios problem with the new Cisco Aironet access points “AIR-AP2702I-UXK9”. This are universal (country-independent) APs. After several seconds, the access points from this series (connected directly to the PoE switches) made a power reset. Powering this APs with PoE-Injector solved the problem. The Cisco switches used in the environment are 3550 series. The installed firmware … Read more

HP Accredited Technical Professional (ATP) FlexNetwork Solutions v3 exam passed!

Phew… finally done the exam for the HP ATP – FlexNetwork Solutions (HP0-Y52). My teammate also passed the exam. We did the three-day training two weeks ago at HPE Böblingen. Next year I will head for HP Accredited Systems Engineer (ASE) FlexNetwork Architect v2 🙂

Sophos SSL VPN Problems with Kaspersky/TrendMicro Anti-Virus

In the last weeks, my network team and I tried to solve a problem at one of my customers regarding SSL VPN problems. The customer keeps connected (green traffic light on) but lost the network connection to his servers several times. Only a manual vpn-reconnect could solve the problem. UTM logs and client-logs couldn’t help … Read more

Sophos UTM Update 9.405-005 released!

Up2Date 9.405005 package description: Remarks: System will be rebooted Configuration will be upgraded Connected REDs will perform firmware upgrade Connected Wifi APs will perform firmware upgrade News: Maintenance Release Bugfixes: Fix [NUTM-2840]: [AWS] UTM ignores MTU sent by DHCP server Fix [NUTM-3064]: [AWS] Confd info shows wrong instance_role for ha warm&as Fix [NUTM-4426]: [AWS] Allow … Read more