Cisco

Cisco Catalyst 2960X keeps crashing

René Jorissen on July 18, 2017 2 Comments • Tags: #asicphy #cscut90593 #error

Yesterday evening I had to troubleshoot a Cisco Catalyst 2960X switch stack, which didn’t return to normal after a reboot. The following error message was visible on the console: Error: ASIC/PHY POST failed. Cannot continue. %Software-forced reload This error message is listed as a bug (CSCut90593) at Cisco.com. Cisco describes a very “good” workaround: the switch … Read More

Aruba Networks

ClearPass & MobileIron – Error: not well-formed (invalid token)

René Jorissen on October 28, 2016 2 Comments • Tags: #clearpass #cppm #error #invalid #mdm #mobileiron #token #wellformed

This post isn’t going to describe what HPE Aruba ClearPass or MobileIron is. And neither will it describe the configuration steps necessary to add MobileIron to ClearPass, but I will give a short summary: Add the MobileIron VSP to ClearPass as Endpoint Context Server (CPPM – Administration – External Servers); The account on MobileIron needs … Read More

Management

Cisco ASA: web interface not working

René Jorissen on December 14, 2010 23 Comments • Tags: #113 #algorithms #common #encryption #error #net::err_ssl_version_or_cipher_mismatch #no #ssl

I had to troubleshoot a Cisco ASA today, where the client wasn’t able to connect to the management web interface anymore via https. The customer didn’t install ASDM locally, but always starts the Java-based version. After upgrading the Cisco ASA to software version 8.2(1) and a reboot, the client wasn’t able to connect to the … Read More

Quality of Service, Switching

AutoQos error while generating commands

René Jorissen on December 2, 2010 1 Comment • Tags: #autoqos #commands #configuration #error #exclusive #generating #mode #while

First of all, the post isn’t about explaining QoS. Configuring AutoQos on Cisco switches should be very easy. At least, that is what all the Cisco documentation tells you. I always thought that the statements about configuration AutoQos were true, but a few days ago I would disagree. I was configuring multiple switches, Cisco Catalyst … Read More

Configuration Example, IPSec / SSL VPN

Citrix NetScaler: Protocol Driver Error

René Jorissen on April 20, 2010 1 Comment • Tags: #aaa #driver #error #ica #maxaaausers #parameter #protocol #set #ssl #sta #vpn

Today I have been troubleshooting a Citrix NetScaler configuration, where some clients received the Protocol Driver Error message when executing a published application. This error message is mostly related to a wrong configuration of the Security Ticket Authorities (STA’s). I spent a lot of time troubleshooting this issue and focused on the STA configuration. I … Read More

Other stuff...

RDP and Spooler system service

René Jorissen on August 12, 2008 1 Comment • Tags: #1114 #communicating #error #eventid #fenableprintrdr #hkey_local_machinesystemcurrentcontrolsetcontrolter #lmhost #lookup #netbios #print #rdp #registry #reg_dword #spooler #system #termservdevices

My colleagues and I configure a Windows server from time-to-time. Mostly when we configure a server, it is a server which is placed in the DMZ zone, like an ISA Reverse Proxy or Citrix Secure Gateway. Recently I spoke with a colleague and we started discussing the running services under Windows. After installing a Windows … Read More