Hi,
You can refer this link on how to disable the proxy settings for Chrome.
"Resolving proxy" - Chrome Help
Now in the last step of this tutorial, if you see that some proxy settings are already selected, then you have to SELECT the option that says-"Automatically Detect Settings".
Also if you have internet explorer installed, Please Disable any proxy in it also in a similar manner.
Do let me know if this works for you.
Regards
Rohit Nair