Daily multiple WAN down alerts with StarLink

Daily multiple WAN down alerts with StarLink

Daily multiple WAN down alerts with StarLink
Daily multiple WAN down alerts with StarLink
a week ago
Model: ER7206 (TL-ER7206)  
Hardware Version: V1
Firmware Version: 1.4.3 + OC200 6.2.0.12

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:

  1. Starlink’s raw L2/L3 behaviour (micro‑drops, handoffs, ICMP weirdness)

  2. ER7206 v1.0’s primitive WAN detection logic

 

The ER7206 v1.0 WAN detection engine is hard‑coded to:

  • Ping a single target

  • With a short timeout

  • With very few retries

  • And declare the WAN offline quickly

 

So the ER7206 is simply reporting:

  • “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:

  • ER7206 v2

  • ER707‑M2

  • ER8411

These allow:

  • Multiple probe targets

  • DNS‑based detection

  • Adjustable retries

  • Per‑WAN customization

  • 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.  

 

 

0
0
#1
2 Reply
Re:Daily multiple WAN down alerts with StarLink
a week ago

Hi , @RF_Dude 

Thank you for posting on our business forum. 

 

We greatly appreciate you sharing the troubleshooting approaches you have explored so far.

In addition to the methods you have shared, the WAN offline alerts you are experiencing could potentially be caused by unstable upstream connectivity. We would therefore like to recommend that you also inspect your upstream physical connections, and conduct a stability test on your upstream network, to ensure your router can receive a consistent, reliable WAN connection.

 

0
0
#2
Re:Daily multiple WAN down alerts with StarLink
a week ago

  @Jeremy_12 well... this upstream behavior could be StarLink.  Which is what CoPilot AI has identified, and the primitive (simplistic) ping tests as carried out in the TP-Link V1 hardware.  The WAN port of the TP-LINK GW is connected directly to SL which is in bypass mode. Powered from the same UPS.   Wan detection interval is 1m.  

 

Note that there is no logged INFO alert for WAN reconnected (restoral).  Which would likely be the next successful ping?  I don't see these errors on my fiber or DSL connected sites.  If the odd lost ping is truly a SL "normality", then the ask becomes a more reliable way to detect WAN down, rather than make that declaration from a Ping Lost.  

 

Thank you for considering.  

 

 

0
0
#3