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Could the router be causing this?

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Could the router be causing this?

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.
Could the router be causing this?
Could the router be causing this?
2024-05-29 08:58:18
Tags: #DHCP Service
Model: ER605 (TL-R605)  
Hardware Version: V1
Firmware Version: 1.2.1 Build 20220512 Rel.76748

My wife's work computer is making dhcp requests really quickly.  Up to 8 times per minute.   As she works for a large corporation, she is not too keen on digging around on that computer as it likely has monitoring software on it.  So, i have to start from the non-invasive side... the router.    I do not see any mac specific lease timeout set, and can not figure out what would cause this....As well it should be noted that this happenes both when she is logged on, and in the middle of the night when the computer is hibernating. Windows 10 system, she does not surf the net with that computer, very unlikely that she has caused an infection by viruses or trojans.

here is the log
 

251 2024-05-29 01:53:50 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
252 2024-05-29 01:53:43 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
253 2024-05-29 01:53:35 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
254 2024-05-29 01:53:28 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
255 2024-05-29 01:53:21 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
256 2024-05-29 01:53:14 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
257 2024-05-29 01:53:07 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
258 2024-05-29 01:53:00 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
259 2024-05-29 01:52:53 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
260 2024-05-29 01:52:46 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
261 2024-05-29 01:52:39 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
262 2024-05-29 01:52:32 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
263 2024-05-29 01:52:25 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
264 2024-05-29 01:52:18 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
265 2024-05-29 01:52:06 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
266 2024-05-29 01:51:59 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
267 2024-05-29 01:51:52 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
268 2024-05-29 01:51:45 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
269 2024-05-29 01:51:38 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
270 2024-05-29 01:51:31 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
271 2024-05-29 01:51:24 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
272 2024-05-29 01:51:17 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
273 2024-05-29 01:51:10 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
274 2024-05-29 01:51:03 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
275 2024-05-29 01:50:56 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
276 2024-05-29 01:50:49 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
277 2024-05-29 01:50:42 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
278 2024-05-29 01:50:35 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
279 2024-05-29 01:50:28 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
280 2024-05-29 01:50:21 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
281 2024-05-29 01:50:14 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
282 2024-05-29 01:50:07 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
283 2024-05-29 01:50:00 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
284 2024-05-29 01:49:53 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
285 2024-05-29 01:49:46 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
286 2024-05-29 01:49:39 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
287 2024-05-29 01:49:32 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
288 2024-05-29 01:49:25 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
289 2024-05-29 01:49:18 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
290 2024-05-29 01:49:14 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
291 2024-05-29 01:49:14 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
292 2024-05-29 01:49:07 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
293 2024-05-29 01:49:01 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
294 2024-05-29 01:48:54 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
295 2024-05-29 01:48:47 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
296 2024-05-29 01:48:40 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
297 2024-05-29 01:48:33 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
298 2024-05-29 01:48:26 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
299 2024-05-29 01:48:19 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].
300 2024-05-29 01:47:52 DHCP Server NOTICE DHCP Server allocated IP address 192.168.1.133 for the client[MAC: 4c:77:cb:f5:41:46].

 

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Re:Could the router be causing this?
2024-05-30 01:30:50 - last edited 2024-05-30 01:31:04

Hi @Gavintfn 

Thanks for posting in our business forum.

Any computer from the company property should be installed with a monitoring tool. And I am not surprised if you find one on her computer.

Usually, they should not pose a problem to the network. Or DHCP.

 

From the log, I see that is so frequent. The router does not have a problem like that. Nor have I received a report internally about the DHCP problems recently.

I prefer to believe that this is a problem on her computer.

You should verify her MAC address first.

Hibernate status is not actually sleeping and stopping all the connections. You probably should try to sleep the computer during the night.

Give it a try by Wireshark and see if her computer is frequently requesting the IP address. Filter keyword should be "dhcp". If her computer is indeed sending this frequently, there is no way from us to stop it. Try to set up a static IP on her computer so that DHCP discovery stops. How Does DHCP Work? Common Questions and Solutions

How to capture packets using Wireshark on SMB router or switch

How to Use Port Mirror to Capture Packets in the Controller

Best Regards! If you are new to the forum, please read: Howto - A Guide to Use Forum Effectively. Read Before You Post. Look for a model? Search your model NOW Official and Beta firmware. NEW features! Subscribe for the latest update! ☛Download Beta Here☚ ☛ ★ Configuration Guide ★ ☚ ☛ ★ Knowledge Base ★ ☚ ☛ ★ Troubleshooting ★ ☚ ● Be kind and nice. ● Stay on the topic. ● Post details. ● Search first. ● Please don't take it for granted. ● No email confidentiality should be violated. ● S/N, MAC, and your true public IP should be mosaiced.
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Re:Could the router be causing this?
2024-05-30 01:38:04
Best Regards! If you are new to the forum, please read: Howto - A Guide to Use Forum Effectively. Read Before You Post. Look for a model? Search your model NOW Official and Beta firmware. NEW features! Subscribe for the latest update! ☛Download Beta Here☚ ☛ ★ Configuration Guide ★ ☚ ☛ ★ Knowledge Base ★ ☚ ☛ ★ Troubleshooting ★ ☚ ● Be kind and nice. ● Stay on the topic. ● Post details. ● Search first. ● Please don't take it for granted. ● No email confidentiality should be violated. ● S/N, MAC, and your true public IP should be mosaiced.
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