I've been trying to fix this for some days and I only have recently formatted my PC. For some reason my internet shows connected straight away but when trying to browse it says check my proxy or something. All other devices are ok except my PC.
After a few while of trying to resolve the issue I noticed that a program called installshield keeps trying to popup and do something but it's always unsuccessful. I always keep closing it but for some strange reason, whenever I close this app it disconnects me from any browsing activity such as IE, Chrome, Steam, Discord but I can still play online game but it sayd I have no internet when I try to browse.
I hope you can help me.