I have a Powerconnect 2824 home network - Frontier Cable provides source with 24 ports, including a QNAP NAS running. Periodically, the network locks up. Doesn't give me an error - just hangs loading pages. Might get better on its own in about 20 minutes but often requires that I turn the entire system including the switch off and then it works when everything comes back on. I'm pretty sure it is not the Cable Router because I can WifI into its router and get internet access. Any ideas? Is it time to replace my PowerConnect Switch? with what? How can I diagnose the problem?
Thanks in advance for your help.