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ER605 going mad in multiple ways

ER605 going mad in multiple ways

ER605 going mad in multiple ways
ER605 going mad in multiple ways
2025-08-14 19:03:26 - last edited 2025-08-14 20:01:04
Model: ER605 (TL-R605)  
Hardware Version: V2
Firmware Version: 2.3.0 Build 20250428 Rel.18967

Hi all,

 

I was now several days abroad and my ER605 on primary site was going mad.

1st two issues were relatively simple - the SDWAN link was going down - was back after rebooting router on the primary site via Android App (I was in vacation without notebook)

 

the 3rd issue was completely strange and I couldn't fix it remotely via app.

Symptoms:

  • SDWAN going offline (notified via monitoring)
  • DHCP down (all of my dynamic devices were offline after DHCP lease has expired)
    • OpenVPN was offline obviously because dead DHCP
    • thankfully  WireGuard was functional as it doesn't require DHCP
  • App showed the router "disconnected", which means, reboot command isn't available. 
    • Force Provision command without effect
  • Internet access and routing in general was OK (I could access the network and connect to controller via app using WireGuard)

 

I could restore the normal operation only by power cycling the router.

 

Any idea?

 

/BR ZoloNN ----------------------------------------------------------------------------------- Omada 2x ER605(UN) v2.0 + SG2008P(UN) V3.20 + SG2218 V1.20 + 2x SG2008 V4.20 + 3x EAP615-Wall(EU) V1.0
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#1
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5 Reply
Re:ER605 going mad in multiple ways
2025-08-16 02:36:01

  @ZoloNN My ER605 V2 FW 2.3.0 has also been going down over the last week.  I have had to reboot it 3 times.  Nothing noted in the logs.  Slight CPU and memory spike just before going down.  Hopefully someone at tp-link is working on a fix, my family wants me to get rid of this router.

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#2
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Re:ER605 going mad in multiple ways
2025-08-16 10:07:09

Hi @jg1212 

 

Are you using controller mode or standalone one?

You could reboot the device or powercycling was needed?

 

/BR ZoloNN ----------------------------------------------------------------------------------- Omada 2x ER605(UN) v2.0 + SG2008P(UN) V3.20 + SG2218 V1.20 + 2x SG2008 V4.20 + 3x EAP615-Wall(EU) V1.0
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#3
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Re:ER605 going mad in multiple ways
2025-08-16 11:48:02

  @ZoloNN i'm using controller mode and I had to power cycle the router to get the network back 

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#4
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Re:ER605 going mad in multiple ways
2025-08-16 14:07:40

  @ZoloNN I the router was completely down, so I couldn't connect to it, had to power cycle it

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#5
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Re:ER605 going mad in multiple ways
2025-08-18 07:44:21

  @ZoloNN 

SD-WAN is down, so one of the sites as the Hub could be down. I assume.

 

I don't have a diagram of your network. I cannot pinpoint if it is a scheme issue. You can use this thought and continue the troubleshooting. 

Omada is pretty solid as far as I can see. SD-WAN should not be down without a reason. 

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#6
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Replies: 5

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