No IP Address allocation on Using VLAN

[AbDhops]

Hi All,
I have Asus RTN66U router.
Basic router with Switch is working fine.
Now I have enabled VLAN 101 (see below image).

.

I also updated interface to include this VLAN

Firewal is also updated.

Now, when I connect to port 4 (as shown in first image), I dont get any IP address.

Any idea what am I doing wrong...

[krazeh]

Have you created a DHCP server for the interface?

[eduperez]

If you mark the LAN4 port as tagged on VLAN101, then only computers also configured to tag on their ethernet connection will be able to reach the router through that port. I think you want to mark that port as untagged.

[AbDhops]

Unbelievable... it was right in front of my me...
Many many thanks !!!!