Csrss is short for Client/Server Run-Time Subsystem. This file is essential for proper functioning of Windows, However when it is affected it may cause some serious issues.
Microsoft always bring lot of new feature in its new Windows version. So was case with Windows 10. After major release, regular updates are released by Software giant to fix the bugs and issues encountered by users. Lot of Windows 10 desktop and laptop users are facing some annoying network issues. If your internet is not working and you are getting limited connectivity, you may be victim of the subject error too. Upon troubleshooting, “Default gateway is not available error” would show up.