I solved a similar server stumbled problem and made a vid if u wanna check it out...the reset command doesn't always work and the proxy server doesn't cause many problems but it does help to have it off
if you have same problem after switching off proxy server and setting correct time zone i will recommend you to set the region too then ur store will work thank you!
Check the System Date and Time Zone on your computer. Make sure it is correct. If you are using a proxy connection, then disable proxy and see if it works. To disable proxy, open Internet Explorer > Tools > Internet Options > Connections tab > LAN settings > Uncheck Use Proxy server > Apply.