Daily multiple WAN down alerts with StarLink
Ongoing, daily WAN down alerts. Self resolving. Two SL terminals in bypass mode and both in different buildings feed SFP WAN (copper) and WAN ports of the ER7206 v1. A few offline events per day are logged. The log grows daily. Here is a sample:
| Site:Plan:WAN Online Detection | 2026-04-10 06:08 | [gateway:5C-A6-E6-BB-XX-F9]: The online detection result of [SFP WAN] was offline. | |||||||
| Site:Plan:WAN Online Detection | 2026-04-08 20:51 | [gateway:5C-A6-E6-BB-XX-F9]: The online detection result of [SFP WAN] was offline. | |||||||
| Site:Plan:WAN Online Detection | 2026-04-08 16:13 | [gateway:5C-A6-E6-BB-XX-F9]: The online detection result of [WAN] was offline. | |||||||
| Site:Plan:WAN Online Detection | 2026-04-08 13:45 | [gateway:5C-A6-E6-BB-XX-F9]: The online detection result of [WAN] was offline. | |||||||
| Site:Plan:WAN Online Detection | 2026-04-08 06:36 | [gateway:5C-A6-E6-BB-XX-F9]: The online detection result of [SFP WAN] was offline. | |||||||
| Site:Plan:WAN Online Detection | 2026-04-08 04:10 | [gateway:5C-A6-E6-BB-XX-F9]: The online detection result of [SFP WAN] was offline. | |||||||
| Site:Plan:WAN Online Detection | 2026-04-07 23:35 | [gateway:5C-A6-E6-BB-XX-F9]: The online detection result of [WAN] was offline. | |||||||
| Site:Plan:WAN Online Detection | 2026-04-07 15:31 | [gateway:5C-A6-E6-BB-XX-F9]: The online detection result of [SFP WAN] was offline. | |||||||
Some homework excertps using CoPilot..... Do you agree with the conclusion?
WAN Down coming from one of two places:
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Starlink’s raw L2/L3 behaviour (micro‑drops, handoffs, ICMP weirdness)
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ER7206 v1.0’s primitive WAN detection logic
The ER7206 v1.0 WAN detection engine is hard‑coded to:
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Ping a single target
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With a short timeout
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With very few retries
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And declare the WAN offline quickly
So the ER7206 is simply reporting:
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“My probe failed” not “The Starlink terminal is down”
If you want proper WAN detection, only hardware solves it
The following Omada gateways have the new WAN detection engine:
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ER7206 v2
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ER707‑M2
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ER8411
These allow:
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Multiple probe targets
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DNS‑based detection
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Adjustable retries
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Per‑WAN customization
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Much better behaviour with Starlink
If you want stable logs and clean failover, this is the real fix.
OP: This seems like a less CPU intensive effort to resolve with V1 firmware than other speed related issues that hit processing limits on older hardware.
