Deco M4R v2 going mad (red light after internet outage)
Hi all,
I have problems with my DECO mesh system - it's going from time to time mad after internet outage. I tried it to solve via contacting the support (TKID231222021), but I get mostly only copy/paste advices from cookbook even if I asked to forward the issue to higher support level
I have some questions:
- is there someone from higher support level who can go in touch with me to find the root cause? I'm a freelance IT admin and I suspect FW issue...
- is there some manual how to obtain logs from DECO via CWMP as DECO doesn't support syslog servers (and after reboot is the log empty)?
So, now let's dive into my issue:
- I have 3 DECO M4R v2 in a AP mode with ETH backhaul - one on each floor of my house
- firmware is the latest version available (1.5.8 Build 20230619 Rel. 48552)
- if the internet connection goes lost, the main DECO is going mad, LED is red and whole wireless network is down
- I have setup ping monitoring using KUMA and I can see, that all three aren't pingable/connectable at random intervals after the outage till the main DECO isn't powercycled
- while this, the DECOs aren't accessible via app nor web interface
- The KUMA is also monitoring the 8.8.8.8 by ping (Google DNS) and I can see, that the main DECO goes mad right after the internet connection is lost
- the situation goes back to normal when I power cycle the main DECO - there is no need to reboot all of them
additional observations:
- it seems, that the problem (main DECO going mad) occurs only during night - in the last couple of weeks I got several outages from 2 minutes to 1 hour during daytime - and all was fine (my ISP A1 resets the xDSL line every 1-2 weeks and assigns new WAN IP address to the DSL router - their justification is to cleanup the DHCP pool )
- DECO M4 keeps logs only for a period of about 2-4 hours, so I can't analyse them after the night outages anymore in the morning.
- my suspicion for some firmware issue is going stronger and stronger
/BR
ZoloN
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Got app version 3.7.14 - still no change - cannot disable the DHCP, which is still active
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Hello. I have TP Link Deco S7. I have the same problem. The Deco device is connected to the main router by cable. If the main LTE router disconnects from the Internet and starts up again after a certain time, the DECO device disconnects, the indicator lights red and it no longer connects. I have to restart the whole system, which is impossible, since I am not always with this device. Please fix this problem
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yesterday I had make one small change to my network - I've connected the main-DECO to a switch instead directly to the router. then I've updated the FW on my router causing, surprise-surprise, an internet outage
Observation:
- the main-DECO stayed white - no red-madness anymore
- the main-DECO was still serving DHCP requests while the router was down
Conclusions:
- the red-madness is definitely triggered by ETH interface of main-DECO going down
- the DHCP is still activated when the Internet connection is down
- Q: is this triggered by main-DECO disconnected from cloud? or is the main-DECO periodically checking for presence of foreign DHCP?
- all my M4R v2.0 are on FW level 1.6.1 Build 20231227 Rel. 80438 and Android App on version 3.7.14 - but I can't turn Smart DHCP off as advised by @Alexandre as the option to do so is (still) missing
- after changing the network topology, only devices which are periodically checking for internet availability were affected - e.g. mobile phones (they're trying to reconnect and get new IP)
Workaround:
- so, my suggested workaround for red-madness is: use switch between router and main-DECO as this is triggered by ETH-down event
/BR
ZoloN
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They now offer beta firmware 1.7.0, which they claim for sure will let you turn SmartDHCP on. You can get it from here: https://community.tp-link.com/en/home/forum/topic/651248
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Is any solution for Deco S7? On the master router i have the last firmware, so i can not more to do with this :-(
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Update:
after installing beta FW 1.7.0 Build 20240307 Rel. 49485:
- I can turn off the Smart DHCP
- tested several disconnect scenarios - it seems like red-madness is gone
- To be improved: I can't access the System Parametes menu in WebUI - just eternal spinning circle.........
anyway, I'll strongly suggest, that the main DECO should be not connected directly to main router, but to a switch in between to eliminate the ETH-down event which started all the troubles.
hereby I consider this issue as preliminary closed - looking forward to non-beta FW
/BR
ZoloN
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@Alexandre. Hi. Inhabe also Problem wird mi m4r Deco. Can you send me please the same firmware
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@pichincha you can find it here: https://community.tp-link.com/en/home/forum/topic/651248?sortDir=ASC&page=1
/BR
ZoloN
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@ZoloN should I update firmware even if this deco is not my main deco? My main deco is m5 but I have troubles only with m4r
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