You have the tip of the iceberg showing here so more clues would be needed to figure it out.
I know it's asking a lot but knowing your PC is paramount to avoiding reinstalling the OS for this cure.
Bob
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i am having issues with my internet and don't know what is causing it my computer is WIRED in to my router. when i get home from work i sit down at the pc and find out that i cant go to any web pages i reset my router still doesn't work i reset my modem still doesn't work i check a pc in the other room also WIRED in to the network and it works but my pc doesn't so i thought it was the network adapter so i reset it and still doesn't work the only way to get my internet working is restarting also when i try and do a windows network troubleshooting it says modem is having connectivity issues but its not cause i got internet in the other room and also i don't have my ip set to static i let the router assign ip's i just cant figure this out i dont know if its a program blocking my internet or what but i have tried almost everything i even scanned for viruses and malware like one forum said and still nothing i even tried stopping the process explore.exe and restarting it and nothing i dont know if this is to relevant but this all started one day after work i got home and had no net and tried to open network and sharing center and kept getting the error system call failed please help my pc is an hp pavilion p7-1003wb running windows 7 amd athlon II X4 650 processor 8 gigs ram and a nvidia 550ti graphics card and running avira antivirus dont know if that info helps but im just tring not to be vague
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Did you make any changes prior to the start of the problem? When you checked for viruses did you do it from Safe Mode? Have you gone to Device Manager and checked to see if the network adapter is enabled and working normally? You can buy a new network card and use it if the one you're using has gone bad. They cost from $10 to $25 usually.
Good luck.
i did check and yes it does seem to be working fine i also rolled back the drivers on the network card. and again i had to restart to get internet also i ran the antivirus in safe mode i also did a scan on boot and even ran 2 different anti malware programs still nothing and i am still getting the stupid error "System Call Failed" when i try to open network and sharing center or even when i right click the desktop i cant even get in control panel cause of the error "system call failed" but once i restart i have no issues and i dont think its the network adapter and since i rolled back drivers to the last known working ones and it still did it that means it cant be drivers but must be either another application blocking the net and giving me the error system call failed or something