@3Dman 

Hey

I have to be honest and say this probably not an issue with the firmware, rather you are trying to use a router as a switch / AP.. good chance this wont work perfectly for you.. the D7 I think is your issue given that its a router and not an AP / Switch.   The D7 is the wrong device for what you are trying to do!  Sorry!!

That aside I have got this working before, but I would do it differently from your setup.   At the moment as you have the DHCP disabled on the D7 any IPs on the clients will have a default gateway from the VR600...  

Purely thinking out loud but therefore any traffic going down from the D7 will work as the VR600 is the final destination.. going back up.. not so sure..  Seperating the DHCPs would allow for different default gateways and DNS so might work better for you.

My thinking is

• Set the VR600 as  DSL Modem Router Mode   192.168.1.1   and enabled DHCP with a scope of   .2  - .99 
• Set the D7 in Wireless Router Mode with IP  192.168.1.100   and enable DHCP with a scope of  .101 - 199
• LAN cable from VR 600 to   WAN/LAN Port on D7 (yellow port closest to middle)   that should see the VR600 as the upstream WAN / LAN..  I dont think the standard LAN ports will work for you

Think I have set others up that way before and it worked..  

Problem is your are

1. Double NATing the network (not an issue, but not ideal)
2. Running 2x DHCP servers
3. Running 2x Routers and no switches

@Philbert 

Hi,

This was not an issue with the VR600 v2 so I'm pretty sure it's an issue with the VR600 v3. I was using the D7 as an access point for more than a year with the VR600 v2 and never had this issue. I have also tried using the VR600 v2 as an access point and this issue is happening.

From reading online, it's an issue with the router not updating it's bridge tables when a Wi-Fi roaming happens, and when the ethernet link between the router and the access point is severed, the tables get updated and it works instantly https://superuser.com/a/1051390

I'm using the router in Access point mode as recommended by TP-Link https://www.tp-link.com/en/support/download/archer-vr600/v2/#video

@TP-Link 

Hi,

Thanks for your reply, below are my answers.

1.

Yes, there's no problem with internet access when changing WiFi networks between router and access point.

2.

My IP settings on all clients always use DHCP, VR600 V3 is the main DSL router with the IP 192.168.1.1 and Archer D7 is 192.168.1.254 configured as access point.

Archer D7 has DHCP disabled and it's connected to VR600 V3 using LAN to LAN ports, WAN ports are not used at all.

I can't ping devices connected to D7 from the VR600 after connecting to the WiFi network of VR600 instantly, but they work well after 5 minutes or after disconnecting the lan cable between the router and the access point.  

When changing the WiFi from from VR600 to D7 I can access the devices connected to the VR600 router immediately so it seems that the D7 can update its bridge tables without problems just like my old VR600 V2.

3. I have sent the configurations.

I've never had this problem when using the VR600 V2 as the main router and D7 as the access point so my problem now is just the VR600 V3 so I appreciate your response and I'm ready to provide all the help I can to know the root cause and eventually get this fixed.