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Ethernet randomly disconnects for a few seconds

zmon
Guide

Ethernet randomly disconnects for a few seconds

Hey all, so I've been fighting this issue with my XR500 for about 2 months now. Out of the blue, my desktop would randomly lose connection for a few seconds and then regain connection. As far as I can tell, my wifi is not affected when this happens. My motherboard has two NICs (Intel I219-V and I211) and the disconnects happen on both. I went out recently and grabbed a USB to Ethernet adapter and it's doing the same thing as my onboard NICs so I'm sort of thinking it's the router at this point as I've also tried different ethernet cables, factory resetting the XR500, and doing a clean format of Windows 10 to no avail. When the disconnects happens, Event Viewer records Event ID 27 for my I219-V and this is the XML for it:

- <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
- <System>
  <Provider Name="e1dexpress" /> 
  <EventID Qualifiers="40964">27</EventID> 
  <Level>3</Level> 
  <Task>0</Task> 
  <Keywords>0x80000000000000</Keywords> 
  <TimeCreated SystemTime="2020-01-17T19:21:50.423191000Z" /> 
  <EventRecordID>2160</EventRecordID> 
  <Channel>System</Channel> 
  <Computer>DESKTOP-US6G74E</Computer> 
  <Security /> 
  </System>
- <EventData>
  <Data /> 
  <Data>Intel(R) Ethernet Connection (2) I219-V</Data> 
  <Binary>0000040002003000000000001B0004A00000000000000000000000000000000000000000000000001B0004A0</Binary> 
  </EventData>
  </Event>

Event viewer isn't recording when the USB ethernet adapter drops the connection, so I can't see what error/XML data that's giving.

 

I'm not sure what else to try at this point as it's really starting to get iritating. I would request a warranty replacement if there's no other things I can try, but I never uploaded my receipt when I bought it from Micro Center and no longer have it, so I have a feeling Netgear would deny that request.

Model: XR500|Nighthawk Pro Gaming Router
Message 1 of 40
zmon
Guide

Re: Ethernet randomly disconnects for a few seconds

Slight update. The connection drops every 30 minutes on the dot, same exact seconds and everything. A note in the logs says the internet connection has connected, so now I'm assuming it's network wide instead of just the ethernet ports. Any suggestions? I can't think of anything off-hand.

Message 2 of 40
Netduma_Alex
NetDuma Partner

Re: Ethernet randomly disconnects for a few seconds

It's a strange mix of symptoms. I'd suggest that it was an issue between your modem and your router, except that you say WiFi remains unaffected. I notice that all of the ethernet adapters you've used are connected to one computer. Do you have a laptop, tablet or anything that can be connected via ethernet? I would like to know if the problem occurs on this device as well.

Message 3 of 40
zmon
Guide

Re: Ethernet randomly disconnects for a few seconds

Hi Alex,

 

I've confirmed that it does happen to another device, and is actually happening across the network now that I've looked into it. It appears that it may have something to do with the DHCP lease/renew time from my ISP since it happens every 30 minutes on the dot? I've checked across the Netduma forums, and it appears there have been a few cases like mine that have shown up. I've posted over there myself, and got a reply from Frayser who I sent some logs. I can send them to you as well if you would like.

Message 4 of 40
Netduma-Fraser
NetDuma Partner

Re: Ethernet randomly disconnects for a few seconds

DHCP on the router renews once a day so it shouldn't be causing that to happen every 30 minutes. Try setting a static IP for one of the wired devices, does it still occur on that device every 30 minutes? Also what is your physical setup?
Message 5 of 40
zmon
Guide

Re: Ethernet randomly disconnects for a few seconds

Yeah, still happens after setting a static IP on one of my wired devices.

 

Arris SB8200 -> XR500 -> Desktop (Has two NICs, an Intel I-219V and I211 and this occurs on both).
Everything else is wireless

Message 6 of 40
Netduma-Fraser
NetDuma Partner

Re: Ethernet randomly disconnects for a few seconds

Is there anything on your network that happens every 30 minutes that you can think of? Perhaps an auto backup or sync with a cloud server for example?
Message 7 of 40
zmon
Guide

Re: Ethernet randomly disconnects for a few seconds

Not that I'm aware of. All I know for sure is if I restart the router, the 30 minutes thing resets to the time the router comes back on. Say if I restart it right now, it'll disconnect at 3:36, and again at 4:06.

 

I did PM both you and Alex the logs over on the Netduma forums, don't know if you've taken a look yet though.

Message 8 of 40
Netduma-Fraser
NetDuma Partner

Re: Ethernet randomly disconnects for a few seconds

I can't see anything in the logs indicating what the issue could be unfortunately. Could you try putting the router in AP mode please and see if it continues? This would essentially disable DumaOS altogether and then we can narrow down the issue a bit more.
Message 9 of 40
zmon
Guide

Re: Ethernet randomly disconnects for a few seconds

Alex, my SB8200 is just a standard modem, not a modem/router combo. Won't this matter if I put in AP mode as the modem won't be assigning IP addresses?

 

Tried it anyways and had no access to internet from my wired devices.

Message 10 of 40
zmon
Guide

Re: Ethernet randomly disconnects for a few seconds

Er, Fraser, not Alex. Little early in the morning still. 😛

Message 11 of 40
Netduma-Fraser
NetDuma Partner

Re: Ethernet randomly disconnects for a few seconds

Good point, it should work though if you just have one device - i.e. a wired device connected to it. Do you have a spare router you could put between the modem and XR for the test?
Message 12 of 40
zmon
Guide

Re: Ethernet randomly disconnects for a few seconds

Put it after the RAX75 I ended up picking up, it's not doing it in AP mode.

Message 13 of 40
Netduma-Fraser
NetDuma Partner

Re: Ethernet randomly disconnects for a few seconds

Interesting, if you switch it back to router mode and put the XR500 WAN IP in the DMZ of the RAX75 does it go back to the disconnections?
Message 14 of 40
zmon
Guide

Re: Ethernet randomly disconnects for a few seconds

It seems to only want to do it when it's getting the IP directly from the modem. The RAX75 isn't doing it at all, so that's interesting.

Message 15 of 40
zmon
Guide

Re: Ethernet randomly disconnects for a few seconds

I did unplug the RAX and put the XR500 back behind the modem, still getting those 30 minute DHCP renew/releases though. Personally, I'd rather keep using the XR500 if possible since I got a little better range, but those 30 minute drops were driving me nuts.

Message 16 of 40
zmon
Guide

Re: Ethernet randomly disconnects for a few seconds

One more thing, Cox seems to only be giving me a 1 hour DHCP lease, so the router is asking every 30 minutes to renew it and is losing that connection momentarily when it renews I guess.

Message 17 of 40
Netduma-Fraser
NetDuma Partner

Re: Ethernet randomly disconnects for a few seconds

Is there anyway you can extend the lease on the modem/ask CoX to do this? It may be then extend the time the XR500 renews as well.
Message 18 of 40
zmon
Guide

Re: Ethernet randomly disconnects for a few seconds

I can see try, but they're currently saying that this is Netgear issue since the device should not be losing connection on renewal though.

 

Any idea why the RAX75 has no issues with renewal while the XR does?

Message 19 of 40
Netduma-Fraser
NetDuma Partner

Re: Ethernet randomly disconnects for a few seconds

You're right it shouldn't be. Probably because they're handled by different teams. Could you change the Internet Setup to static instead of dynamic please and also do some static/reserved IPs for the LAN devices and see if that helps. Hopefully bypassing DHCP would help.
Message 20 of 40
zmon
Guide

Re: Ethernet randomly disconnects for a few seconds

I believe I did that previously and completely lost internet around the 1 hour mark. A connection drop didn't happen at 30 minutes though. It's unfortunate that Cox does not allow residential customers the ability to get a static IP, otherwise I would have done that.

Message 21 of 40
Netduma-Fraser
NetDuma Partner

Re: Ethernet randomly disconnects for a few seconds

I assume you're using the ISP DNS, if you could change that to 1.1.1.1 and 1.0.0.1 does that make any difference? It shouldn't do ordinarily but if they're releasing every hour it may do.
Message 22 of 40
zmon
Guide

Re: Ethernet randomly disconnects for a few seconds

No, I've actually been using 1.1.1.1 for a while now. Also have their ipv6 dns setup as well.

Message 23 of 40
Netduma-Fraser
NetDuma Partner

Re: Ethernet randomly disconnects for a few seconds

Could you provide some logs from the System Information page showing some times where the internet has disconnected please?
Message 24 of 40
zmon
Guide

Re: Ethernet randomly disconnects for a few seconds


@Netduma-Fraser wrote:
Could you provide some logs from the System Information page showing some times where the internet has disconnected please?
[LAN access from remote] from 71.6.199.23:16741 to 192.168.1.2:2379, Wednesday, January 29, 2020 17:09:27
[DumaOS] config write 'com.netdumasoftware.devicemanager.database', Wednesday, January 29, 2020 17:09:15
[LAN access from remote] from 82.102.173.94:58387 to 192.168.1.2:49152, Wednesday, January 29, 2020 17:09:08
[DumaOS] DHCP lease change., Wednesday, January 29, 2020 17:09:00
[DumaOS] DHCP new event., Wednesday, January 29, 2020 17:09:00
[DHCP IP: 192.168.1.2] to MAC address 70:85:c2:5b:e5:d5, Wednesday, January 29, 2020 17:09:00
[DumaOS] Error parsing line in ARP table: 'fe80::d6ad:71ff:fe0c:1c19 dev brwan lladdr d4:ad:71:0c:1c:19 router STALE', Wednesday, January 29, 2020 17:08:51
[DumaOS] Error parsing line in ARP table: 'fe80::1c94:190d:fcd3:29fb dev br0 lladdr 80:b0:3d:2c:5b:8c REACHABLE', Wednesday, January 29, 2020 17:08:51
[DumaOS] Error parsing line in ARP table: 'fe80::1c94:190d:fcd3:29fb dev ethlan  FAILED'., Wednesday, January 29, 2020 17:08:51
[LAN access from remote] from 185.250.205.36:56620 to 192.168.1.2:58992, Wednesday, January 29, 2020 17:08:50
[LAN access from remote] from 194.61.24.149:42216 to 192.168.1.2:4766, Wednesday, January 29, 2020 17:08:39
[Internet connected] IP address: 24.254.39.186, Wednesday, January 29, 2020 17:08:36
[LAN access from remote] from 77.247.108.119:54950 to 192.168.1.2:5038, Wednesday, January 29, 2020 17:08:32
[LAN access from remote] from 59.173.13.251:52248 to 192.168.1.2:1433, Wednesday, January 29, 2020 17:07:59
[LAN access from remote] from 194.61.24.149:42216 to 192.168.1.2:4139, Wednesday, January 29, 2020 17:07:37
[LAN access from remote] from 1.163.115.229:1678 to 192.168.1.2:5555, Wednesday, January 29, 2020 17:07:31
[LAN access from remote] from 80.82.64.229:58912 to 192.168.1.2:18652, Wednesday, January 29, 2020 17:07:23
[LAN access from remote] from 81.22.45.126:57582 to 192.168.1.2:4722, Wednesday, January 29, 2020 17:07:10
[DumaOS] DHCP new lease allocated., Wednesday, January 29, 2020 17:07:04
[DumaOS] DHCP new event., Wednesday, January 29, 2020 17:07:04
[DHCP IP: 192.168.1.8] to MAC address hidden, Wednesday, January 29, 2020 17:07:04
[LAN access from remote] from 92.53.90.132:42340 to 192.168.1.2:7738, Wednesday, January 29, 2020 17:06:42
[LAN access from remote] from 94.102.56.215:47034 to 192.168.1.2:1065, Wednesday, January 29, 2020 17:05:56
[LAN access from remote] from 185.156.73.54:54504 to 192.168.1.2:2616, Wednesday, January 29, 2020 17:05:43
[LAN access from remote] from 80.82.64.229:58912 to 192.168.1.2:18646, Wednesday, January 29, 2020 17:05:25
[LAN access from remote] from 83.97.20.167:38467 to 192.168.1.2:1434, Wednesday, January 29, 2020 17:05:24
[LAN access from remote] from 80.82.64.229:58912 to 192.168.1.2:18649, Wednesday, January 29, 2020 17:05:22

This is the most recent one.

Message 25 of 40
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