Developers
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Articles
Recent activity by Developers-
What is a "Data Cap Threshold" alert, and what causes unusually high data usage?
The site is approaching or has exceeded its data allowance. High usage is often driven by a small number of chatty devices (for example edge collectors or turbine controllers) rather than the whole...
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What is a "Failover Event"?
The site connection switched from its primary link to a backup path (for example cellular or satellite) to keep the site online. Failover working is a sign the resilience design is doing its job. I...
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What does an "Intrusion Activity" alert indicate?
The firewall detected traffic matching a suspicious or malicious pattern and acted on it. These are logged for visibility. If you would like context on a specific event, raise a ticket referencing ...
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What is an "Unrecognised Client" alert?
A device not previously seen has appeared on the site network. This can be legitimate (new equipment, a maintenance laptop) or something to review. If you recognise the activity, no action is requi...
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What does "Ethernet WAN Unplugged" or "Ethernet WAN Plugged In" mean?
The wired internet connection was physically disconnected and then reconnected, for example during maintenance or a cabinet visit. If planned works were taking place, no action is needed. If not, i...
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What is "Modem WAN Standby"?
The site is running on its primary link, and the cellular modem has moved to standby as the backup. This is normal and usually needs no action. It only warrants attention if the primary link is dow...
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What does "WAN Disconnected" (and later "WAN Connected") mean?
"WAN Disconnected" means the site's internet link (Ethernet or cellular modem) dropped. A matching "WAN Connected" for the same site shortly afterwards means the link recovered on its own. A discon...
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What does the "Connection State" alert mean? Do I need to act?
It reports a change in the overall state of a site's monitored connection. A single state change during a brief blip is usually informational and self-resolves. If you receive repeated Connection S...
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Who is responsible for investigating a connection problem: Centrii, my ISP, or the O&M provider?
It depends on where the fault is. Centrii owns the monitored connection and the Centrii equipment on site. The physical circuit belongs to your internet provider, and the SCADA / turbine data path ...
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Why have I lost communication (comms) to a site?
A comms loss can originate on any of several layers: the site's internet circuit (fixed line, cellular, or satellite), the on-site network and firewall, the Centrii monitoring equipment, or the SCA...