Hi,
I am not sure, as the error message does not tell much, but it looks like, that the script resources are either not loaded, or a 3rd party script is causing a conflict, and it stops the page load script execution as well. However, since you tried switching things, this might be less probable.
The ERR_CONNECTION_RESET can refer to cookie related errors as well. Please try the following things:
– Clear all site cookies, or all cookies within the browser
– If no luck, then try it in incognito mode (CTRL + SHIFT + N in chrome)
– If still no luck, then try a different browser
Hopefully one if these should work.