I'm looking for a tool that can help me diagnose if communication between servers, profiles, domains, and anything else is functioning correctly. I've been in IT for some years and still learning. I took on a job as IT Manager in November. For the last two months, numerous aspects to the network, mapped drives needing credentials every time a person logs in, slow login times and extra long times to logoff. Web pages taking 2-5 refreshes to show up or error out. Even issues saying Domain logon server is not available, which when I search, talks about WINS configuration, either way, things were fine up until the last 2 months.