Sergio IT tips

I got a new surprise from DELL, again I had no clue what was the problem. The laptop had extremely slow performance (open/close files, internet connection, open/close programs, bootup and shutdown), keystrokes had a big delay and also sounds could not be played. What I did was: - update drivers - scan for malware - Factory reset - Dell diagnostic tool - Dell hardware diagnostic the one accessible from one time boot menu - etc and nothing worked for me!!! The only message I got was: Alert! The AC power adapter wattage and type cannot be determined. The battery may not charge. The system will adjust the performance to match the power available.   I know!!!... this does not sound logic, normally when your AC adapter is broken your laptop won't boot up but............ I test with a identical AC Adapter from other laptop and problem GONE . As the warning says "...The system will adjust the performance to match the power available" is complet...

My last post I told about the Dell Alienware letdown, now I'm gonna tell about the things I learned from that. I had to use the recovery DVD soon after it finished I noticed that I was not allowed to install anything. .NET frameworks, NVidia Video driver, etc. Everything finished with an error message that said something like this "This package is not compatible with this Windows version" or "Installer cannot continue windows version error". I started to go to system properties and compare with the drivers I just downloaded from internet just to realize I wasn't doing anything wrong. After several hours I found https://appuals.com/this-nvidia-graphics-driver-is-not-compatiable-with-this-version-of-windows/ and it basically says that Windows 10 build number determines if something can be installed on the system. If you are having issues like me you need to use these commands: A. dxdiag B. winver Look for build number in my case due I us...

Recently I had to see the case of a recent model of Dell Alienware. A factory reset was necessary but it did not work as I expected, something on partitions was not completely removed so each time I supposedly finished the W10 recovery menu was shown. I was lucky the recovery DVD was found and it did the difference to recover the system. I always had the best experience with Dell products so with high-end product I wasn't expecting to deal with this kind of issues. The cost was nearly 4,000 USD, and while googled about my issue I discovered a good amount of Alienware users that had problems when installed a BIOS driver update. So I would recommend to think twice before to get something that cost that much, for that amount of money you easly can buy an  Xbox + PS + Smart TV and probably some good games. Probably my experience it's worst than yours. Something positive came after a few days of odd error messages, that will be my next post.

Recientemente tuve que hacer el cambio a Diot 2019 por cambios ordenados en el gobierno bla bla bla. Al hacerlo me salio el horrendo error: No JVM could be found on your system please define exe4j_java_home  Busque mucho y encontre opiniones indicando que Windows 7 no es compatible con DIOT 2019, lo cierto es que en Windows 8 y 10 pasa lo mismo (asi que no compren compu nueva para el DIOT 2019), incluso agregando la variable de entorno con la ruta correcta hacia el directorio donde esta instalado el JAVA. El SAT siempre nos la hace pasar mal!!!! pero la solucion es sencilla. El requisito es como siempre tener JAVA instalado, les recomiendo que sea la ultima version. Al tener instalado JAVA se tiene toda la plataforma para la ejecucion de programas escritos en JAVA, de manera que segun Wikipedia El archivo DEM.JAR que viene en el archivo AplicacionDIOT.zip que se descarga desde la pagina del SAT es todo lo que se necesita para hacer funcionar el DIOT 2019. Tan faci...

It happened to me at the end of April and at the beginning of May in different pfsense boxes, and it took me by surprise that it was a common error during those weeks. Pfsense??? How??? I never had problems with it!!!! Let me tell you about the errors I saw on my boxes: A. Users reported that "they were not able to surf the web", so by checking those workstations I noticed the missed their IP address. Normally they get 192.168.1.x, but all they got 169.254 . x.x ... and it was not for a damaged cable or port, nor a damaged switch as I was guessing, it was the DHCP service having problems. B. Then, in the upper right corner on pfsense admin console I saw something like this There were error(s) loading the rules: /tmp/rules.debug:19: cannot define table bogonsv6: Cannot allocate memory - The line in question reads [19]: table persist file /etc/bogonsv6] In my case I got a 26 (among others) instead of 19, but the error was the same. So I found the problem and the 2 s...