DHCPS Lease hostname not found
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SysLog:
1 WARNING 0days, 03:03:52, [dhcps]Lease host name not found.
2 WARNING 0days, 03:22:45, [dhcps]Lease host name not found.
3 WARNING 0days, 05:09:20, [dhcps]Lease host name not found.
4 WARNING 0days, 05:12:23, [dhcps]Lease host name not found.
5 WARNING 0days, 05:35:19, [dhcps]Lease host name not found.
6 WARNING 0days, 05:53:15, [dhcps]Lease host name not found.
7 WARNING 0days, 06:03:52, [dhcps]Lease host name not found.
8 INFO 0days, 06:24:38, [dhcps]Send OFFER with ip 192.168.0.2.
9 INFO 0days, 06:24:38, [dhcps]Send ACK to 192.168.0.2.
10 WARNING 0days, 07:37:09, [dhcps]Lease host name not found.
11 WARNING 0days, 07:48:09, [dhcps]Lease host name not found.
12 WARNING 0days, 08:14:29, [dhcps]Lease host name not found.
13 INFO 0days, 08:14:29, [dhcps]Send OFFER with ip 192.168.0.3.
14 WARNING 0days, 08:14:30, [dhcps]Lease host name not found.
15 INFO 0days, 08:14:30, [dhcps]Send ACK to 192.168.0.3.
16 WARNING 0days, 09:03:53, [dhcps]Lease host name not found.
17 WARNING 0days, 10:45:38, [dhcps]Lease host name not found.
18 WARNING 0days, 11:15:06, [dhcps]Lease host name not found.
19 WARNING 0days, 11:15:07, [dhcps]Lease host name not found.
20 WARNING 0days, 12:03:53, [dhcps]Lease host name not found.
21 WARNING 0days, 13:25:29, [dhcps]Lease host name not found.
22 WARNING 0days, 14:47:29, [dhcps]Lease host name not found.
23 WARNING 0days, 14:59:32, [dhcps]Lease host name not found.
24 WARNING 0days, 15:03:54, [dhcps]Lease host name not found.
25 WARNING 0days, 15:16:03, [dhcps]Lease host name not found.
26 WARNING 0days, 15:42:32, [dhcps]Lease host name not found.
27 WARNING 0days, 15:59:40, [dhcps]192.168.0.2 belongs to someone, reserving it for 3600 seconds.
28 WARNING 0days, 15:59:40, [dhcps]Lease host name not found.
29 INFO 0days, 15:59:40, [dhcps]Send OFFER with ip 192.168.0.3.
30 WARNING 0days, 15:59:41, [dhcps]Lease host name not found.
31 INFO 0days, 15:59:41, [dhcps]Send ACK to 192.168.0.3.
32 INFO 0days, 16:24:27, [dhcps]Send OFFER with ip 192.168.0.111.
33 INFO 0days, 16:24:27, [dhcps]Send OFFER with ip 192.168.0.111.
34 WARNING 0days, 16:24:28, [dhcps]Lease host name not found.
35 INFO 0days, 16:24:28, [dhcps]Send ACK to 192.168.0.111.
36 WARNING 0days, 16:24:28, [dhcps]Lease host name not found.
37 INFO 0days, 16:24:28, [dhcps]Send ACK to 192.168.0.111.
38 INFO 0days, 17:33:32, [dhcps]Send OFFER with ip 192.168.0.100.
39 INFO 0days, 17:33:33, [dhcps]Send ACK to 192.168.0.100.
40 WARNING 0days, 18:03:55, [dhcps]Lease host name not found.
41 INFO 0days, 19:13:47, [dhcps]Send OFFER with ip 192.168.0.111.
42 INFO 0days, 19:13:48, [dhcps]Send OFFER with ip 192.168.0.111.
43 WARNING 0days, 19:13:49, [dhcps]Lease host name not found.
44 INFO 0days, 19:13:49, [dhcps]Send ACK to 192.168.0.111.
45 WARNING 0days, 19:13:49, [dhcps]Lease host name not found.
46 INFO 0days, 19:13:49, [dhcps]Send ACK to 192.168.0.111.
47 WARNING 0days, 19:41:31, [dhcps]Lease host name not found.
48 WARNING 0days, 20:52:36, [dhcps]192.168.0.2 belongs to someone, reserving it for 3600 seconds.
49 INFO 0days, 20:52:37, [dhcps]Send OFFER with ip 192.168.0.4.
50 INFO 0days, 20:52:38, [dhcps]Send ACK to 192.168.0.4.
51 WARNING 0days, 21:03:55, [dhcps]Lease host name not found.
52 WARNING 0days, 21:10:04, [dhcps]Lease host name not found.
53 INFO 0days, 21:20:23, [dhcps]Send OFFER with ip 192.168.0.5.
54 INFO 0days, 21:20:24, [dhcps]Send ACK to 192.168.0.5.
55 WARNING 0days, 21:51:56, [dhcps]Lease host name not found.
56 WARNING 0days, 21:56:19, [dhcps]Lease host name not found.
57 INFO 0days, 22:04:50, [dhcps]Send OFFER with ip 192.168.0.5.
58 INFO 0days, 22:04:51, [dhcps]Send ACK to 192.168.0.5.
59 INFO 0days, 22:07:43, [dhcps]Send OFFER with ip 192.168.0.5.
60 INFO 0days, 22:07:44, [dhcps]Send ACK to 192.168.0.5.
61 INFO 0days, 22:32:14, [dhcps]Send OFFER with ip 192.168.0.4.
62 INFO 0days, 22:32:15, [dhcps]Send ACK to 192.168.0.4.
100 is my PC. 111 is my Phone. Both are permanent. 5, 3 and 4 are other devices like Chromebooks and phones, these are not permanent leases..
On my PC when this happens I lose internet and every packet sent trying to ping the local gateway is lost. On my Android device, every time the router does the OFFER/ACK cycle I lose internet connection or the ability to log in at the router, despite the WiFi connection being intact. For Android, the solution is to disable and enable the WiFi function in order to regain access until the next OFFER/ACK cycle. On PC, I have yet to find a solution.
This problem occurred recently for PC, and while thinking it was the QoS being the culprit, I just went ahead and factory reset the router. Everything was fine for a day or so before the issues started showing up again.
This happens regardless if a device has a static local IP or dynamic. I don't understand why the router is running ACK/OFFER on permanent leased IPs, but it does. I don't understand why the host name isn't found either.
It appears this problem gets worse as time goes by, the router more often runs these commands and over the next 3 weeks I expect to have to factory reset again. I've done a lot of digging but every article/forum post pertaining to these symptoms either has no responses or the solution is to install DD-WRT on the router. Now I really like TP-LINK's GUI, much better than that of DD-WRT. But if that's the only way I can get a reliable DHCP server, then I will install it.
I'm hoping someone here has had a similar issue, or knows what causes these symptoms so that I can continue using this GUI.
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@Vonk and it doesn't work, still drops once per hour
Hope to return this successfully and strongly recommend: Don't buy any tp-link routers
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IP & MAC Binding is deactivated...
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thanks for the hint but I thought of it as well.. I set all IPs as permanent in DHCP but that did not help either..I think the problem is with the WIFI protocol IEEE 802.11 not IP layers..
I used wireshark to check the communication with the router after opening the laptop but I got no packets of any type ....which means that the WIFI protocol got stuck somewhere..
I dont have such a tool to check the wifi protocol ...
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Hey,
Could you please share the logs here.
I checked my logs and I am still having this hostname thing as warning.
1 thing I observed is, I have Android TV which I have connected via ethernet cable, but by mistake wifi was also got enabled in TV, because of this I got drops in network.
I have turned off the wifi of tv and only ethernet is working now.
But for another Android tv I am getting this hostname issue as warning.
I am still working on this issue but my network is working well right now.
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Nothing help ...
I've tried all suggestions here in the thread and nothing.
It is "great" that the TP-Link support do NOTHING to solve this problem... Thx!
Recommend me router from another brand.
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@Georgi681 yo, i had the same problem. I Can recommend you MicroTik Hap AC3, or Hap AC2 model, they're both good. I bought Hap AC3 and had almost no problem with this one.
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Georgi681 wrote
Nothing help ...
I've tried all suggestions here in the thread and nothing.
It is "great" that the TP-Link support do NOTHING to solve this problem... Thx!
Recommend me router from another brand.
Hello @Georgi681 and all,
If any of you observes and finds that there are 'DHCPS Lease hostname not found' error in the router system log, please take it easy. This specific log has nothing to do with any drops or disconnect behaviors as far as I can confirm.
When this error occurs, it simply means the router is not able to get the hostname of the client device which is connected to the network. But this doesn't mean the specific device will drop from the network or fail to connect. This mostly happens when the device is using a private or randomized MAC address and doesn't have a hostname.
If you see these errors in the router system log, please help verify the following details:
1. Does this error point to a specific client device or some? Are they phones or computers?
2. Does that device use a private or randomized MAC address?
3. Does that device have a hostname?
However, if you do experience an internet disconnect or unstable issue with the router, please provide us with the below information:
1. Will the internet LED on the Archer C80/C64 change to orange/red when the issue happens?
2. Who is your ISP? What is the model of the ISP-provided modem? Do you have stable internet connectivity if you connect a computer directly to the modem? This needs to be tested and verified for the same period when you observed the disconnect on the C80/C64.
3. If the ISP-provided modem gives you a pretty stable connection, please try with a new Cat5e or Cat6 Ethernet cable between the modem and the C80/C64 to observe if it will make a difference.
4. If nothing helps, please save the whole system log on the C80/C64 and send it to support.forum@tp-link.com for further investigation.
Thank you very much.
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