When the length of the failure exceeds your setting for “Log Failure If Longer Than”, NUM plays an alert sound and writes the failure information into its log. If your connection fails, the current fail length is displayed in red. When the response time exceeds the time set for “Wait for Ping Response”, the indicator turns red to show no response from that server. The response time of the last ping is shown. The indicator “light” flashes yellow when the ping is sent and shows green for a successful response. The display shows the names and IP addresses of each server. You can set how long a failure must be before NUM alerts you to it and records the failure in its failure log.Ĭonnection is down, one previous failure… A very short failure of a second or so is not likely to affect your use of the net and isn’t of any real concern. NUM can detect failures as short as a couple of seconds in length, but you can decide how long a failure must be before it really counts. Only when all three servers fail to respond does NUM determine that your connection is down.īy using three servers, NUM ensures that the problem isn’t just with the server or with some connection on the way to that server, or that the server isn’t momentarily slow or congested. If any of the servers respond, then your connection must be working. If the server doesn’t respond, NUM immediately tries the next server, then the next. NUM pings one server at a time if the server responds, NUM waits the test interval, then pings the next server. By default, NUM waits 200 milliseconds (2/10 of a second) for the server to respond – at least 3 times as long as a typical broadband internet connection should take. (See “What’s a Ping?” below for an explanation.) Each server is pinged in turn at an interval that you can set – normally five seconds.

Net Uptime Monitor (NUM) uses the “Ping” command to test the response from three public servers operated by Google, Level 3, and OpenDNS. This failure log will help your provider troubleshoot the problem – after it helps you convince them it’s not your imagination! Net Uptime Monitor is designed to be as simple as possible and accomplish this one purpose accurately and thoroughly with the least effort from you. The Net Uptime Monitor alerts you to failures in your internet connection and documents the exact time and length of those failures. But all too often the response is “Well, it’s working fine now!” Is your internet connection unreliable? You’ve probably called your internet provider’s support line and maybe they were able to help you, maybe they even sent out a tech to look at it.

My internet uptime monitor