Deco M5 DHCP not assigning IP addresses

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Deco M5 DHCP not assigning IP addresses

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.
Deco M5 DHCP not assigning IP addresses
Deco M5 DHCP not assigning IP addresses
2022-08-13 07:46:01
Model: Deco M5  
Hardware Version: V3
Firmware Version: 1.6.0 Build 20220525 Rel. 48298

I'm using the system that consists of 12 Deco (10 M5 including the main, 2 X20). Recently I've started to face the issue when some devices (PS5, Mac books) are connecting to the network but not the internet. They are not getting an ip. 

 

I saw 2 years old topic, and the solution mentioned there is to put the DNS addresses to 8.8.8.8 & 8.8.4.4 which is already the case in my situation. 

 

the DHCP range is 50-250. The connected devices in average are around 50-60, the maximum number of connected devices was 108 which is still less than the DHCP range. 

 

in the log I see some repetitive messages such as:

daemon.err udhcpd[13333]: checked a ip conflict node:192.168.68.84

daemon.err udhcpd[13333]: find_free_or_expired_nip

daemon.err udhcpd[13333]: checked a node ip same

daemon.err udhcpd[13333]: ip conflict, find a new ip: 192.168.68.98, ready to arp check

daemon.err udhcpd[13333]: send arp packet:192.168.68.98

 

 

I have few devices with reserved IPs but the majority are using DHCP
 

The work around for me was to keep restarting the main deco, or wait for sometime (5-10 minutes, sometimes more) till the device gets an ip.

 

is it a known issue for the admins? are they working on a solution? is there a configuration fix? 

 

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#1
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9 Reply
Re:Deco M5 DHCP not assigning IP addresses
2022-08-15 03:19:06 - last edited 2022-08-31 07:26:05

  @Ahmed_Alawadhi 

Thank you very much for the feedback.

There is a beta firmware that might help with your current issue and if you are interested, please install this beta firmware first:

 

Deco M5 1.6.0 build 20220816

 

Bug fixes: 

1. Fixed the insight/time limit issue under Parental control.
2. Fixed the DDNS Issue under PPPoE connection type.

 

Modifications/Improvements:
1. Optimized the DHCP function.
2. Optimized the Monthly Reports function.
3. Optimized the Clients List function. 
4. Improved system reliability.

 

And please let me know whether the firmware worked or not.

Best regards.

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#2
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Re:Deco M5 DHCP not assigning IP addresses
2022-08-17 15:09:57

  @David-TP 

Thanks David for the firmware.

 

Unfortunately it didn't solve the issue, it became worse. Now I'm facing the same issue with other devices such as printers and PCs

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#3
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Re:Deco M5 DHCP not assigning IP addresses
2022-08-18 08:58:26

  @Ahmed_Alawadhi 

Thanks for the update.

In this way, I would like to follow up on your case via email.

Could you please check whether you have got an email from us?

Best regards.

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#4
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Re:Deco M5 DHCP not assigning IP addresses
2022-08-19 12:18:09

  @David-TP I have same problem with 3 Deco M5 after last firmware update a month ago.
Logs:
Thu Aug 18 22:11:39 2022 daemon.err udhcpd[18066]: send arp packet:192.168.68.125
Thu Aug 18 22:11:39 2022 daemon.err udhcpd[18066]: checked a ip conflict node:192.168.68.125
Thu Aug 18 22:11:39 2022 daemon.err udhcpd[18066]: find_free_or_expired_nip
Thu Aug 18 22:11:39 2022 daemon.err udhcpd[18066]: ip conflict, find a new ip: 192.168.68.124, ready to arp check
Thu Aug 18 22:11:39 2022 daemon.err udhcpd[18066]: send arp packet:192.168.68.124
Thu Aug 18 22:11:39 2022 daemon.err udhcpd[18066]: checked a ip conflict node:192.168.68.124
Thu Aug 18 22:11:39 2022 daemon.err udhcpd[18066]: find_free_or_expired_nip
Thu Aug 18 22:11:39 2022 daemon.err udhcpd[18066]: checked a node ip same
Thu Aug 18 22:11:39 2022 daemon.err udhcpd[18066]: ip conflict, find a new ip: 192.168.68.125, ready to arp check
Thu Aug 18 22:11:39 2022 daemon.err udhcpd[18066]: send arp packet:192.168.68.125
Thu Aug 18 22:11:39 2022 daemon.err udhcpd[18066]: checked a ip conflict node:192.168.68.125
Thu Aug 18 22:11:39 2022 daemon.err udhcpd[18066]: find_free_or_expired_nip
Thu Aug 18 22:11:39 2022 daemon.err udhcpd[18066]: ip conflict, find a new ip: 192.168.68.124, ready to arp check

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#5
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Re:Deco M5 DHCP not assigning IP addresses
2022-08-19 12:32:47

  @David-TP 

Thanks.. I received the email and will reply later

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#6
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Re:Deco M5 DHCP not assigning IP addresses
2022-08-27 13:59:25

Same exact issue here. 27 devices connected, any further ones don't get an IP. 

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#7
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Re:Deco M5 DHCP not assigning IP addresses
2022-08-31 02:45:00

  @destriaero 

still following up with the support team. Meanwhile, I've made my Decos on AP mode and everything is fine now.

 

Even the issue that I was having with the surveillance cameras is resolved. I didn't suspect the deco earlier

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#8
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Re:Deco M5 DHCP not assigning IP addresses
2022-11-12 21:30:25

  @Ahmed_Alawadhi I had this same issue when running 2 x Deco E4 in router mode.  Eventually thought I had solved it when I introduced an X50 into the mix and it has been running for 3 months issue free, same issue now happening again when I seem to hit 25 devices connected existing devices can't reconnect via DHCP.

 

TP-Link support were no help last time I reported this and it appears to be a common issue that has been going on for a long time now with no fix in sight!

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#9
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Re:Deco M5 DHCP not assigning IP addresses
2022-11-13 02:22:51

  @darloboy same thing here. They support team said that everything is normal.

 

I've canceled router mode. 

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#10
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