ER605 Packet loss - both externally and internally

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.

ER605 Packet loss - both externally and internally

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.
ER605 Packet loss - both externally and internally
ER605 Packet loss - both externally and internally
2023-06-13 10:46:33 - last edited 2023-10-30 01:54:26
Tags: #packet loss
Model: ER605 (TL-R605)  
Hardware Version: V2
Firmware Version: 2.1.2

Good day all,

 

I have been experiencing issues initially with conference calls. I have managed to trace the issue to packet loss and using ping plotter pro I have been monitoring pings to the internet, pings to the ER605 router, and pings to all of the hops in between. Note, I'm also using an Omada Controller hosted on a local server.

 

Off the back of this, I have found that for short periods of time, about 7 seconds each the ER605 stops responding to pings and packets are lost - this coincides with the timing of packet loss to various online services.

 

I have determined that the ER605 is the cause of this packet loss and now ask for some help in diagnosing the issue further please.

 

Thanks

  0      
  0      
#1
Options
1 Accepted Solution
Re:ER605 Packet loss - both externally and internally-Solution
2023-10-30 01:54:20 - last edited 2023-10-30 01:54:26

Hello @dazmatic,

 

It has been confirmed that the following three devices in your network are sending ARPs declaring themselves as gateway 192.168.10.1, causing all other devices in the network to disconnect from the network.


arp: 192.168.10.1 moved from 9c:a2:f4:57:6d:5e to a0:43:b0:5a:cb:82 on igb0
arp: 192.168.10.1 moved from 9c:a2:f4:57:6d:5e to a0:43:b0:5a:cc:48 on igb0
arp: 192.168.10.1 moved from 9c:a2:f4:57:6d:5e to a0:43:b0:5a:d7:85 on igb0

 

You just need to disconnect these three devices and the network will be back to normal.

Best Regards! >> Omada EAP Firmware Trial Available Here << >> Get the Latest Omada SDN Controller Releases Here << *Try filtering posts on each forum by Label of [Early Access]*
Recommended Solution
  1  
  1  
#11
Options
10 Reply
Re:ER605 Packet loss - both externally and internally
2023-06-13 11:41:13 - last edited 2023-06-13 11:43:30

  @dazmatic 

 

i had somewhat similar problem earlier when VPN was enabled. L2TP /PPTP or site to site, every time there was a  connect or reconnect of the vpn there were problems with teams and the the company VPN on the PC lost connection, I spent a long time getting tp-link to understand the problem but after a couple of months they fixed it. I don't think it's fixed if you use PPTP on the router. so if you have any VPN activated try to compare when it happens and VPN connect or disconnect in the log.

You will find this log under event and device

 

 

  0  
  0  
#2
Options
Re:ER605 Packet loss - both externally and internally
2023-06-13 15:10:51

So I've since set up ping plotter to rule out various devices and interfaces. So far, the main candidate is the ER605 currently sat on the local IP in the screenshots below.

 

This then gets really, really weird. The red bars are obviously packet loss and whilst the duration of packet loss is slightly different, the time of the packet loss cannot be a coincidence. 31 minutes past, 34 minutes past and 36 minutes past the hour almost to the second every time.

 

 

 

  0  
  0  
#3
Options
Re:ER605 Packet loss - both externally and internally
2023-06-14 02:40:01

Hello @dazmatic,

 

It is hard to locate the issue based on the description, could you tell us what your network layout is like?

May I know which advanced settings you have set, like VLAN, VPN, ACL?

Did these Packet Losses cause the network to intermitted?

 

Please check all Ethernet cables in your network are all good, and you need to confirm the front-end modem is working stably.

Best Regards! >> Omada EAP Firmware Trial Available Here << >> Get the Latest Omada SDN Controller Releases Here << *Try filtering posts on each forum by Label of [Early Access]*
  0  
  0  
#4
Options
Re:ER605 Packet loss - both externally and internally
2023-06-14 07:10:50 - last edited 2023-06-14 07:16:43

Hi  @Hank21 

 

My setup is pretty straightforward out of the box settings.

Other than changing the LAN1 address, changing the DHCP pool, setting up WAN interfaces and opening a couple of ports for services, it is pretty much standard.

 

There are no VLANs, no VPNs - there was one ACL I setup for MS Teams calls as that was how I initially noticed the first issue before the packet loss monitoring began.

 

I've since swapped out the ER605 with an old Draytek 2860 and the packet loss has stopped.

 

In terms of layout, I've got just 2 EAP WALL access points, and a single managed POE switch to power them. The tests have been done over ethernet but the issue is also apparent on WiFi.

 

Also the tests were done pinging the ER605 whilst also pinging a couple of online services (Google and ms.teams) and the timings of packet loss online coincided with packet loss to the ER605.

 

Also, I have been monitoring pings to intermediate hops on my network between the test system and the ER605 and there has been no packet loss. 

  0  
  0  
#5
Options
Re:ER605 Packet loss - both externally and internally
2023-06-14 21:52:31

Hi @Hank21 

 

I've since factory reset the ER605 unit and set it up again - without the controller.

Setup included setting PW etc, DHCP reservations and pool and WAN connections - nothing else has been changed and the packet loss has now returned, albeit around 1 minute later than previously.

 

  0  
  0  
#6
Options
Re:ER605 Packet loss - both externally and internally
2023-06-15 03:07:18

Hi @dazmatic

 

May I confirm that are you running this ping plotter pro software on a wireless client or a wired client?

If you are running it on a wireless client, this issue may be influenced by the wireless environment mostly, it is hard to say that it is the issue on the router.

Best Regards! >> Omada EAP Firmware Trial Available Here << >> Get the Latest Omada SDN Controller Releases Here << *Try filtering posts on each forum by Label of [Early Access]*
  0  
  0  
#7
Options
Re:ER605 Packet loss - both externally and internally
2023-06-15 06:21:44 - last edited 2023-06-15 06:42:19

Wired client  @Hank21 

 

literally happening every hour. (2am was a restart)

 

This is from a fresh factory reset too with minimal settings changed and please note, my draytek 2860 tested in same location did not have this issue.

  0  
  0  
#8
Options
Re:ER605 Packet loss - both externally and internally
2023-06-16 03:27:18

Hi @dazmatic,

 

To better assist you, I've created a support ticket via your registered email address, and escalated it to our support engineer to look into the issue. The ticket ID is TKID230624628, please check your email box and ensure the support email is well received. Thanks!

Once the issue is addressed or resolved, welcome to update this topic thread with your solution to help others who may encounter the same issue as you did.

 

Many thanks for your great cooperation and patience!

Best Regards! >> Omada EAP Firmware Trial Available Here << >> Get the Latest Omada SDN Controller Releases Here << *Try filtering posts on each forum by Label of [Early Access]*
  0  
  0  
#9
Options
Re:ER605 Packet loss - both externally and internally
2023-10-28 13:02:06

  @Hank21 

Can you please confirm that a report can be built from Parker detailing the outcome?

  0  
  0  
#10
Options
Re:ER605 Packet loss - both externally and internally-Solution
2023-10-30 01:54:20 - last edited 2023-10-30 01:54:26

Hello @dazmatic,

 

It has been confirmed that the following three devices in your network are sending ARPs declaring themselves as gateway 192.168.10.1, causing all other devices in the network to disconnect from the network.


arp: 192.168.10.1 moved from 9c:a2:f4:57:6d:5e to a0:43:b0:5a:cb:82 on igb0
arp: 192.168.10.1 moved from 9c:a2:f4:57:6d:5e to a0:43:b0:5a:cc:48 on igb0
arp: 192.168.10.1 moved from 9c:a2:f4:57:6d:5e to a0:43:b0:5a:d7:85 on igb0

 

You just need to disconnect these three devices and the network will be back to normal.

Best Regards! >> Omada EAP Firmware Trial Available Here << >> Get the Latest Omada SDN Controller Releases Here << *Try filtering posts on each forum by Label of [Early Access]*
Recommended Solution
  1  
  1  
#11
Options

Information

Helpful: 0

Views: 919

Replies: 10

Tags

packet loss
Related Articles