ER5120 DHCP server stops after 24 hours

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ER5120 DHCP server stops after 24 hours

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.
ER5120 DHCP server stops after 24 hours
ER5120 DHCP server stops after 24 hours
2016-09-24 01:31:29 - last edited 2021-08-21 06:02:32
Model :

Hardware Version :

Firmware Version :

ISP :

Hi there.

I have a TP-Link ER5120, running 1.0.8 Build 20140212 Rel.36037

I have a problem where the DHCP server stops serving IP addresses after approximately 24 hours.

I've checked and there is no later version of code available. Are other users experiencing the same thing ?
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#1
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Re:ER5120 DHCP server stops after 24 hours
2016-09-26 08:48:36 - last edited 2021-08-21 06:02:32
What's your topology look like?Can your device get IP by ipconfig /renew?
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Re:ER5120 DHCP server stops after 24 hours
2017-09-18 17:50:38 - last edited 2021-08-21 06:02:32
Dont want to highjack this topic but i have the same problem. I use the router for a guest WiFi netwerk with 26 accesspoints. I want to have the DHCP server to give out 500 addresses. So i have the following settings in my DHCP server:






But after about an hour is just stops giving out adresses. At the moment it has about 50 adresses given out, but it just stops there. I dont see any errors/problems. Does anybody have a tip to help me with this.
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Re:ER5120 DHCP server stops after 24 hours
2017-09-25 16:37:05 - last edited 2021-08-21 06:02:32

ysbrand wrote

Dont want to highjack this topic but i have the same problem. I use the router for a guest WiFi netwerk with 26 accesspoints. I want to have the DHCP server to give out 500 addresses. So i have the following settings in my DHCP server:






But after about an hour is just stops giving out adresses. At the moment it has about 50 adresses given out, but it just stops there. I dont see any errors/problems. Does anybody have a tip to help me with this.

Is that everything ok with the network? Just the DHCP server down(no more devices can get IP)?
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Re:ER5120 DHCP server stops after 24 hours
2017-09-26 14:43:59 - last edited 2021-08-21 06:02:32

Panda wrote

Is that everything ok with the network? Just the DHCP server down(no more devices can get IP)?


yes. The network is fine. If i add an address manually it'll work fine. the DHCP server just stops giving out addresses. It seems not to be a time issue, but more like it cant handle more than 50 or so devices.
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Re:ER5120 DHCP server stops after 24 hours
2017-09-28 15:58:53 - last edited 2021-08-21 06:02:32

ysbrand wrote

yes. The network is fine. If i add an address manually it'll work fine. the DHCP server just stops giving out addresses. It seems not to be a time issue, but more like it cant handle more than 50 or so devices.


If I've got it right, ER5120 can support 100-300 clients. It's no reason can't carry 50 clients. Could you see anything strange in the log? like flood attack?
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