Virus or malware

Hello, if I have no virus or malware, but I notice flaws in the computer network connections in control panel and the internet gateway I get an internet connection will pulse configuration and I get a connection service strange, the delete but come back, delete, reboot, and come out again. Well I hope you can help me, otherwise I will have to reformat, and I'm seriously thinking about Linux. Thank you all.

I could not find any malware in your log.