Preferred Dns Server Sets To 127.0.0.1 Automatically

My problem is with the IPv4 properties; I get connection when DNS is set to 'obtain automatically' but a few minutes after setting this, it changes to a preferred server called 127.0.0.1, the reroute to nowhere! Now i have to go back there every few minutes and change this setting if I want to connect.

Google was useless, I ran anti-malware, rebooted and reset all connections to both WiFi and Ethernet connection to the modem, tried all the command prompt tricks and nothing works.


Tech Support Guy System Info Utility version 1.0.0.2
OS Version: Microsoft Windows 7 Ultimate, Service Pack 1, 64 bit
Processor: Intel(R) Core(TM) i5-2500K CPU @ 3.30GHz, Intel64 Family 6 Model 42 Stepping 7
Processor Count: 4
RAM: 8169 Mb
Graphics Card: NVIDIA GeForce GTX 560 Ti, 1024 Mb
Hard Drives: C: Total - 122001 MB, Free - 7608 MB; E: Total - 99 MB, Free - 61 MB; F: Total - 953766 MB, Free - 53872 MB;
Motherboard: MSI, Z68A-GD65 (MS-7681)
Antivirus: AVG AntiVirus Free Edition 2014, Updated and Enabled