XR500 - UPnP / DHCP renewal issue?

Question

Hi there,&nbsp;Been having an issue for the last couple of weeks where my internet is being dropped for a few minutes, usually on the back of a DHCP lease renewal. I don't always need to power cycle the router, but it's enough to kick me from video calls / online games (with the latter being more important and frustrating haha).&nbsp;My set up is Fiber / Cable Modem &gt; XR500, although from what I can tell by the logs, I think the culprit is my work laptop which has a wired connection (via a dock), and has a reserved IP through the LAN settings.&nbsp;Historically, I have had the same DHCP issue as others here, but this issue seems new, and has coincided with a new message spamming my logs. Here are a few examples below.&nbsp;I've also noticed some issues with the work laptop on programs like MS team (i.e. video conferencing calls videos / sharing not working) - so I'm not sure if that might be a related symptom or indicative of a cause.&nbsp;----DumaOS] DHCP new event., Monday, May 03, 2021 10:10:27[DumaOS] DHCP lease change., Monday, May 03, 2021 10:10:27[UPnP set event: del_nat_rule] from source 192.168.1.2, Monday, May 03, 2021 10:10:36[Internet connected] IP address: , Monday, May 03, 2021 10:10:41[UPnP set event: add_nat_rule] from source 192.168.1.2, Monday, May 03, 2021 10:10:43[DumaOS] applying qos for zone wan, Monday, May 03, 2021 10:10:52[DumaOS] applying qos for zone lan, Monday, May 03, 2021 10:10:54[DHCP IP: 192.168.1.2] to MAC address XXXXX, Monday, May 03, 2021 10:11:09[DumaOS] DHCP new event., Monday, May 03, 2021 10:11:09[DumaOS] DHCP lease change., Monday, May 03, 2021 10:11:09[UPnP set event: del_nat_rule] from source 192.168.1.2, Monday, May 03, 2021 10:11:46[DumaOS] applying qos for zone wan, Monday, May 03, 2021 10:12:59[DumaOS] applying qos for zone lan, Monday, May 03, 2021 10:13:01[Internet connected] IP address: , Monday, May 03, 2021 10:13:11[admin login] from source 192.168.1.3, Monday, May 03, 2021 10:14:31&nbsp;----DHCP IP: 192.168.1.2] to MAC address XXXXXX, Saturday, May 01, 2021 23:38:56[DumaOS] DHCP new event., Saturday, May 01, 2021 23:38:56[DumaOS] DHCP lease change., Saturday, May 01, 2021 23:38:56[DHCP IP: 192.168.1.2] to MAC address XXXXXX, Saturday, May 01, 2021 23:39:00[DumaOS] DHCP new event., Saturday, May 01, 2021 23:39:00[DumaOS] DHCP lease change., Saturday, May 01, 2021 23:39:00[UPnP set event: del_nat_rule] from source 192.168.1.2, Saturday, May 01, 2021 23:39:00[UPnP set event: add_nat_rule] from source 192.168.1.2, Saturday, May 01, 2021 23:39:00[Internet connected] IP address: , Saturday, May 01, 2021 23:39:02[UPnP set event: del_nat_rule] from source 192.168.1.2, Saturday, May 01, 2021 23:40:04[DHCP IP: 192.168.1.2] to MAC address XXXXXXX, Saturday, May 01, 2021 23:41:31[DumaOS] DHCP new event., Saturday, May 01, 2021 23:41:31[DumaOS] DHCP lease change., Saturday, May 01, 2021 23:41:31[Internet connected] IP address: XXXX, Saturday, May 01, 2021 23:41:31[UPnP set event: add_nat_rule] from source 192.168.1.2, Saturday, May 01, 2021 23:41:32[DHCP IP: 192.168.1.7] to MAC address XXXXX, Saturday, May 01, 2021 23:42:27[DumaOS] DHCP new event., Saturday, May 01, 2021 23:42:27[DumaOS] DHCP lease change., Saturday, May 01, 2021 23:42:27[UPnP set event: del_nat_rule] from source 192.168.1.2, Saturday, May 01, 2021 23:42:35[UPnP set event: add_nat_rule] from source 192.168.1.2, Saturday, May 01, 2021 23:42:43[UPnP set event: del_nat_rule] from source 192.168.1.2, Saturday, May 01, 2021 23:43:46[Internet connected] IP address: , Saturday, May 01, 2021 23:44:02[UPnP set event: add_nat_rule] from source 192.168.1.2, Saturday, May 01, 2021 23:44:03[admin login] from source 192.168.1.3, Saturday, May 01, 2021 23:44:25&nbsp;----[DumaOS] DHCP new event., Friday, April 30, 2021 08:44:26[DumaOS] DHCP lease change., Friday, April 30, 2021 08:44:26[DHCP IP: 192.168.1.2] to MAC address XXXXXX, Friday, April 30, 2021 08:44:28[DumaOS] DHCP new event., Friday, April 30, 2021 08:44:28[DumaOS] DHCP lease change., Friday, April 30, 2021 08:44:28[UPnP set event: del_nat_rule] from source 192.168.1.2, Friday, April 30, 2021 08:44:30[UPnP set event: add_nat_rule] from source 192.168.1.2, Friday, April 30, 2021 08:44:30[Internet connected] IP address: , Friday, April 30, 2021 08:44:57[UPnP set event: del_nat_rule] from source 192.168.1.2, Friday, April 30, 2021 08:45:33[DumaOS] applying qos for zone wan, Friday, April 30, 2021 08:46:21[DumaOS] applying qos for zone lan, Friday, April 30, 2021 08:46:22[UPnP set event: add_nat_rule] from source 192.168.1.2, Friday, April 30, 2021 08:46:34[Internet connected] IP address: , Friday, April 30, 2021 08:47:26[UPnP set event: del_nat_rule] from source 192.168.1.2, Friday, April 30, 2021 08:47:58[UPnP set event: add_nat_rule] from source 192.168.1.2, Friday, April 30, 2021 08:48:13[UPnP set event: del_nat_rule] from source 192.168.1.2, Friday, April 30, 2021 08:49:18[DumaOS] applying qos for zone wan, Friday, April 30, 2021 08:49:29[DumaOS] applying qos for zone lan, Friday, April 30, 2021 08:49:30[UPnP set event: add_nat_rule] from source 192.168.1.2, Friday, April 30, 2021 08:49:35[DumaOS] applying qos for zone wan, Friday, April 30, 2021 08:49:42[DumaOS] applying qos for zone lan, Friday, April 30, 2021 08:49:45[Internet connected] IP address: , Friday, April 30, 2021 08:49:57[UPnP set event: del_nat_rule] from source 192.168.1.2, Friday, April 30, 2021 08:50:38[UPnP set event: add_nat_rule] from source 192.168.1.2, Friday, April 30, 2021 08:51:18[DumaOS] applying qos for zone wan, Friday, April 30, 2021 08:51:49[DumaOS] applying qos for zone lan, Friday, April 30, 2021 08:51:51[UPnP set event: del_nat_rule] from source 192.168.1.2, Friday, April 30, 2021 08:52:22[UPnP set event: add_nat_rule] from source 192.168.1.2, Friday, April 30, 2021 08:52:23[Internet connected] IP address:, Friday, April 30, 2021 08:52:28[UPnP set event: del_nat_rule] from source 192.168.1.2, Friday, April 30, 2021 08:53:29[UPnP set event: add_nat_rule] from source 192.168.1.2, Friday, April 30, 2021 08:53:46...Same cycle for 30 mins....[UPnP set event: del_nat_rule] from source 192.168.1.2, Friday, April 30, 2021 09:27:28[DHCP IP: 192.168.1.2] to MAC address XXXX, Friday, April 30, 2021 09:28:22[DumaOS] DHCP new event., Friday, April 30, 2021 09:28:22[DumaOS] DHCP lease change., Friday, April 30, 2021 09:28:22[UPnP set event: add_nat_rule] from source 192.168.1.2, Friday, April 30, 2021 09:28:26[admin login] from source 192.168.1.3, Friday, April 30, 2021 09:28:53

Netduma-Liam · Answer

Sorry to hear this!
Could you please let us know what firmware version you're currently running? This issue appears to be less prominent with the new beta verisons of our firmware.
&nbsp;
Do you notice any disconnections when your laptop is not connected at all, or does this only seem to occur when the laptop is actively using the internet?

Kelloggs · Answer

Hey Liam - thanks forgetting back to me.

I’m on the latest - the .114 firmware.

I feel the problem child is the laptop, because I haven’t seen the Upnp log before. But there are a few other devices that seem to be problematic with the DHCP renewal.

It’s probably a separate issue- and not related ti the DHCP stuff, but do you know of any router setting that could be problematic with corporate firewalls? I wonder if that’s causing the UPnP log (I’ve reset the laptop and power cycled the router and I’m still seeing the same issue).

Netduma-Fraser · Answer

The reserved IPs you've made, I would suggest for DHCP you change the starting IP address so this is after the IPs you've set as reserved. For example, if you've set a few devices as reserved ending with .5 - .15 then set the starting IP at .16. That way when the DHCP lease renews it should completely ignore the IPs you've set and hopefully prevent the issue occurring.

You could try disabling QoS fully in the Congestion Control menu and see whether that makes any difference.

Kelloggs · Answer

Thanks Fraser - I'll try re-jigging the IPs as suggested and see if that helps. Was the QoS suggestion a troubleshoot for the renewals as well, or was that in relation to the UPnP?&nbsp;Re: the UPnP issue - that log entry has now disappeared. My employer has opened up the firewall for most applications, meaning we dont need to VPN in - so I wasn't. When I connected with the VPN to access the applications we can't access without it - the UPnP log disappeared - and so did my issues with Teams / video conferencing (regardless of whether I am connected to the VPN).&nbsp;You might have a better idea of why this might of worked than I!&nbsp;I still haven't been able to crack why my wifes corporate laptop / firewall doesn't like our network - had to set up another router for her to use. You guys are a ****load more responsive and helpful than Microsoft!

dialatech2303 · Answer

I'm on the latest Beta version of the firmware and i get this exact same issue. I have posted on the Netduma forum aswell and its been logged with NG to release a new firmware to resolve this issue.&nbsp;&nbsp;Every single time the DHCP renews - the internet will drop and for me the only thing that brings it back is turn off and back on again. Its very frustating, Especially when DHCP is one of the main features a router does and there cant even get that to work on this router. I have had sooooo many problems with this router its&nbsp;unbelievable. if it was not for the Netduma software i would be long gone. I'm going to give NG another month and if the issue has not been resolved then i will be buying a new router.&nbsp;

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XR500 - UPnP / DHCP renewal issue?

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