@Kevin_Z , thanks for your response 

I tried to visualize the environment in a network diagram

 

The number of devices is limited, it's a home network. So if i list them up: 

2 Laptops with VPN connection for work

1 Laptop for private use

2 smartphones

2 Tablets

1 Desktop

 

and furthermore some game console, solar panel, domotics devices that are connected to the network.

 

I have no wifi signals active anymore on the TP link, all wifi is going through the AP's. 

The issue pops up mostly with video or call communications (as well as on the work laptop as on private, with wifi and with cable) But this ain't so weird because video etc is using UDP and that's more sensitive for package loss then TCP traffic. 
My wife noticed it also on her smartphone where some webpages or video's are loaded slow. 

 

I already tried to change the DNS server to 8.8.8.8 and 1.1.1.1 different from the defaults from my provider, but even that has no luck. So at the moment it's back to the default settings.

Yesterday when the issues occurred again I changed the setup to the following around 9h09, ISP modem -> 8p DLink switch -> 2 work laptops and 1 private laptop and we could work all day. Yesterday evening i changed the setup again to the right diagram on top of this message (current setup) and no reboots were done.

Today i have no issues yet.

for your info, I changed the network setup so the router is at my desk and not in the basement together with all the other infrastructure. So that works a bit easier when i need to disconnect or check some stuff on the router.

@Kevin_Z 

 

Indeed, yesterday things started to fail, so i changed the setup directly on the modem via cables to be able to work. Yesterday evening (after our work) i 'normalized' the setup to the 'current setup' without any reboots of the infrastructure, only plug/unplug the cables.

This morning we started again working via the 'current setup' over WIFI. (But in the past I noticed that the same phenomene occurs with cable, I tried to exclude my AP's from the setup)

 

So today i don't have any issue with 3 laptops on the wifi network with the TP link router in between. And the 2 workingh laptops are using skype and teams regularly.

 

Also no package drops today:

Ping statistics for 1.1.1.1:
    Packets: Sent = 10779, Received = 10778, Lost = 1 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 6ms, Maximum = 2437ms, Average = 12ms

 

I did some speed tests before, during and after the issues, most of the time they are good. even directly from the router: 

I have some history from the TPlink speedtest:

Speedtest (just executed) directly on the Laptop over wifi is a download speed of 84.9 Mbps.

So, not bad in my opinion. I have basic internet which means 100Mbps theoreticaly. But like said, the bandwidth is the same as in my previous house.

 

As stated earlier, if I plug a cable from the laptop in the router, the same situation occurs after time. 

IGMP Proxy is enabled, snooping is not. So I'll activate snooping also. Will this have any impact on traffic used by Skype/teams? Just to learn how the IGMP Snooping can help me and what i can expect.

 

Thanks for your feedback and suggestions btw. 

The difficulty is ofcourse that the issue pops up from time to time (2 or 3 times a week) so its difficult to troubleshoot. 

It seems that there is a trigger somewhere that starts my network to flip 
Any ideas how i can see the load on my network to see if something starts bursting my network?

FYI IGMP V2 is running, or should I take V3?

@Kevin_Z 

 

To update you on the current state. I changed the snooping parameter on my router friday right after you told me. It seemed not had any (possitive) impact. 
My script is still running, here are the numbers 'request timed out' for a continuous ping to 1.1.1.1:

19/11/2020	3447
20/11/2020	1005
21/11/2020	5382
22/11/2020	7014
23/11/2020	12

 

 

These are the numbers 'request timed out' for the ping to 8.8.8.8:

19/11/2020	2790
20/11/2020	986
21/11/2020	5387
22/11/2020	7028
23/11/2020	8

 

So i don't need to tell you the stability of the network was really not good. even after your suggestion. 

I changed my setup (22/11 20h40) to exclude a possible issue on the router. So it's still the image of the 'current setup' but the TP link router is replaced by the simple Dlink switch and the ISP modem is acting as a router now. So the TP Link is not in use (and disconnected) at the moment.

 

As you can see the number of failed pings drastically lowered today (and yesterday evening). 

I'll follow up the setup this week and see if the pings remain stable. 

 

if the situation remains stable, I can decide carefully that the issue is located on the TP link router. 

 

But 2 questions i have: 

1) Do I hit a kind of bug on this router? Although it has the latest firmware and the router is only 1 year old? 

2) I still see some drops (20 today on an amount of +/- 74 000 pings in total) but i assume this is negligible?

 

How shall I proceed with this? I think the V3 version for the IGMP snooping will not help me out here? Are there any other parameters, monitoring, actions on the router that i can perform to get the router functioning properly again?

Do you have any idea where this goes wrong? Something to do with the routing part ? 

@Koerthe 

@Kevin_Z

 

Facing same issue

[0] wan port link down

Model: Archer A6
Hardware Version: V2
Firmware Version: 1.1.7 Build 20201010 rel.49458(5553)
Hi,

 

I recently bought TP Link Archer A6 online and started facing as an Internet connection keeps on dropping.

I checked the system Logs and found below messages occur periodically in the span of 1-2 hrs or sometimes lesser.

 

[0] wan port link down

[0] wan port link up with speed 1000M

 

I was using Tp link TL-WR840 N and never had any issues.

The reason I purchased a new router as my Internet speed is 250 Mbps and old router did not have gigbyet port.

 

When contacted TP link support did all the troubleshooting including factory reset and firmware upgrade.

Finally, I have been advised to replace the router.

I requested a replacement and received the same in 4-5 days. Meanwhile, I connected old TL-WR840 N router and the internet worked just fine.

However, the moment in connected Brand new Archer 16 which i received as a replacement I started facing the same issue again.

 

once again contacted support and wilth advise setup primary and Secondary DNs to 8.8.8.8 and 8.8.4.4 respectively. MTU size : 1458

Still facing the same issue. Not sure what to do as fed up. Never thought of such issues before purchasing a new router. 

I would appreciate if some can help.