Hi alex-sec

I think your configuration has not problem. But still have the different opinion about the uplink port.

First switch:

Add vlans 10, 20 as tagged for uplink port.

Second : 

Add vlans 10, 20, 30, 40 as tagged for uplink port. 

Third switch : 

Add vlans 10, 20, 30, 40, 50, 60 as untagged for uplink port.

And as you said, the upling port connected to the router needs to be on PVID 1.

Can you add 2 VLAN to a single port? like VLAN 30 and VLAN 40 to Port 16? I have Access point that have to VLAN30 and VLAN 40

mariem56 wrote

Can you add 2 VLAN to a single port? like VLAN 30 and VLAN 40 to Port 16? I have Access point that have to VLAN30 and VLAN 40

Yes, you can do it on every managable switch, even on Easy Smart TL-SG1024DE, which support 32 VLANs totally.

No. Your VLAN 30,40 tagged should go until the router, which port also should be configured as 30,40 tagged. VLAN 1 you can keep if it is your management VLAN.

alex-sec wrote

Thanks for reply, So for router uplink just leave VLAN untagged 1 and PVID 1?

If you need to use VLAN 1, you can leave VLAN 1 untagged and PVID 1 for uplink port. Also can leave VLAN 1 tagged. 

If you don't need to use VLAN1, you can remove the port from VLAN1.

For example, you have a router at home and your ISP provide you TV, IP-Phone and Internet. ISP told you to configure VLANs for IP-Phone and TV, so you need to configure VLAN 10 for IP-Phone and VLAN 20 for TV. It means, that your Phone traffic and TV traffic will be tagged. While you do not need to configure any vlan for Internet, so it means your Internet traffic will be untagged and will be tagged on switch by PVID, let us say VLAN 4000.

ISP switch will have 

switchport general allowed vlan 10,20 tagged

switchport general allowed vlan 4000 untagged

switchport pvid 4000

Your router will have this. You do not configure anything for Internet VLAN ID, while you configure VoIP and IPTV to support tagged traffic