Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Seems to be a systemic problem

Worked fine for a year. Last week I would have given it 5 stars. One day I woke up to network problems very similar to some of the reviews on this site . Sporadic intermittent failures of both individual ports and of the entire switch. I also had trouble isolating the problem because the errors appeared consistent with router, DHCP and firewall issues. Symptoms didn't seem like switch issues...or maybe I haven't seen enough switches. Flakey is probably an accurate term. If it were not for some of the reviewers below describing what happened with them, it would have taken me much longer to diagnose the problem. Since one reviewer said he had two of these units fail in this same way, I would think there is something systematically wrong with this switch.