Entries by Stefan Helander

VMware ESXi 5.5 guest freezes randomly [solved]

On a VMware 5.5 ESXi host I suddenly experienced guest machined that hanged or froze. I had to reset the guest machine to get it up and running again. In the Events tab I could see entries like below at the time of freezing. Lost access to volume 51d15c1a-17706da4-0ae6-001f29e5c998 (datastore1) due to connectivity issues. Recovery […]

APS package installation_task stuck in ISPConfig3

When trying to install an APS package on a ISPConfig3 system, the package was never installed and the status “installation_task” remained for the site I tried to install a package. Investigating /var/log/ispconfig/cron.log revealed: PHP Fatal error: Uncaught Error: Call to undefined function curl_init() in /usr/local/ispconfig/server/lib/classes/aps_installer.inc.php:627 This problem can occur when curl is not installed on […]

iPhone, iPad or Mac computers unable to connect to wifi network

The Apple products, iPhone, iPad and Mac computers sometimes has problems when connecting to a wifi network where other devices have no problems. The problem seems to be in the encryption used. Make sure the router doesn’t have WPA/WPA2 mixed mode enabled, i.e. set it to WPA2 only. If encryption is configurable, use AES (not […]

Installing Samsung Kies 3 on Windows 10 – error message “Side by side configuration is incorrect”

When trying to install Samsung Kies 3 on a Windows 10 machine, the error message “Side by side configuration is incorrect” was displayed. The reason to this error is that the Visual C++ 2008 runtime is not installed. To solve the problem you need to download and install Microsoft Visual C++ 2008. Download it from these […]

No email or folders visible when using IMAP account with Outlook 2013 or Office 365

The problem seems to be caused by two updates from Microsoft; KB2837618 and KB2837643. There is a simple solution though: Right click on the affected account in the left pane and select IMAP Folders Below the list of folders, uncheck the box for “When displaying hierarchy in Outlook, show only the subscribed folders.“ Exit Outlook […]

10 years anniversary in supplying technical solutions!

Today, august 14, the site celebrates 10 years of supplying technical solutions to tech nerds all over the world! The first post was written on august 14, 2008. Happy anniversary to nerdia.net! Do you have technical solutions or other things you find would be suitable to publish here – send me a message through the […]

Windows 10 desktop disappeared

A Windows 10 user contacted me because the desktop had disappeared. The first thing to check is if Windows is in “Tablet mode” which disables the desktop. Go to the Control panel Search for “tablet” and click on “Table mode settings” In the “When I sign in” change from “Use the apropriate mode for my […]

Random product added to cart along with selected product in PrestaShop [solved]

Using PrestaShop, this was an older shop that had been offline for a couple of years. It had been upgraded in steps from PrestaShop 1.4 via 1.5 to 1.6. While testing it before relaunch of the shop a problem was discovered. Sometimes when adding a product to the shopping cart, another random product was […]

How to move a PrestaShop 1.6 from one domain to another (resolving redirect problems)

There are several descriptions online on how to do this but in one occasion, even though I followed the instructions carefully it kept redirecting me to the old domain name. In my particular case the culprit was that the site used file system cache which was active before the move. The following procedure fixed my […]