If you hit this error when open webpage in browser, dont panic.
It just the "Workstation" service was stopped.
Simply go to RUN>type "net start workstation"; solve the problem.
*FYI: We can browse it in services component there. (RUN>services.msc)
Creates and maintains client network connections to remote servers. If this service is stopped, these connections will be unavailable. If this service is disabled, any services that explicitly depend on it will fail to start.