Links, Not Just Hosts
When hosts behind one link degrade and hosts that avoid it stay clean, ISPbox marks that link as the likely fault.
A small prober pings every device on your network map twenty times every five minutes and draws the familiar smoke chart. ISPbox then compares hosts to find the link that is losing packets, says what is most likely wrong, and opens an incident for the customers behind it.
Real screens from the product.
Latency spread as grey bands and the median as a line coloured by loss, for any host, over hours, days or weeks.
Each problem is one card: what is wrong, how sure the system is, the measurements behind it and what to check first.
Hosts up, links healthy, loss over the last day and open incidents, with the topology drawn from your map.
SmokePing is the tool many ISP engineers trust for latency and loss, but it only draws graphs: somebody still has to work out which hop is to blame and who is affected. ISPbox path monitoring keeps the smoke chart and adds that second half, using the network map you already maintain.
The prober is one small container that runs on a Linux server in your network or in a container on a MikroTik running RouterOS v7. It sends 20 pings per target every 5 minutes by default, and also supports TCP, HTTP and DNS checks and an hourly traceroute to internet reference targets. It stores results in its own local archive before sending them, so nothing is lost while your uplink is down, and it has a local status page for when the panel is unreachable.
Targets come from the ISPbox network map: every device with a management IP and every customer device behind it. ISPbox knows which links each measurement crosses. It compares each host with its own normal latency for that time of day, and when every host behind a link is worse while hosts that do not cross it are clean, the link is marked as the probable cause. Optional SNMP counters on link ends show whether the link is simply full.
A rules engine checks eleven kinds of problem, including a faulty link, saturation, radio degradation, a power outage, a customer-side fault, an upstream ISP problem and slowly rising latency. Each diagnosis carries its confidence, the evidence and recommended next steps; it never changes a router by itself. A degraded link opens an incident for everyone downstream, and alerts use hysteresis so a single bad cycle does not page anyone.
The prober also receives syslog from your devices, classifies lines from MikroTik and other vendors into events such as link down, config changed, reboot or DFS radar, and uses them as evidence: a config change right before the loss started is shown next to the diagnosis. MikroTik routers managed over the API can be set up to send logs with one button.
Works with Network Monitoring, Network Maps, AI Assistant (MCP)
When hosts behind one link degrade and hosts that avoid it stay clean, ISPbox marks that link as the likely fault.
The prober reads its targets from the ISPbox network map and the services on it. There is no separate target file to maintain.
The prober keeps its own archive on your server and ships it when the uplink is back, so an outage does not leave a gap in the charts.
A degraded link opens an incident with the customers behind it, and the diagnosis shows on the client page and in tickets.
ISP mapping the way operators need it: build your network map on an interactive Mapbox view, place towers, OLTs, splitters, ONTs and fiber, coax and wireless links as real geographic features, trace PON optical budget, and export to KML.
Learn moreGive installers an antenna alignment tool that runs on their phone: rank the sectors that actually cover the address, check the terrain line of sight along the path, and aim the CPE by bearing and elevation on a live camera view.
Learn moreMonitor your ISP network in real time: ISPbox pings every router each minute, tracks PPPoE and DHCP client sessions, and fires alerts to Discord, Slack, email or webhooks with flap damping so you hear about real outages fast.
Learn moreHow-to guides: Network Monitoring
Free tools for this: DNS Lookup, Link Budget Calculator, SLA Uptime Calculator
Create a workspace and map your network, then ask us to switch on path monitoring for it.