Hi @Egbolla 

Thanks for posting in our business forum.

Have you tried this article?

How to Configure VLAN on TP-Link Switch

VLAN should be tagged if you need to pass over several VLANs. That's the trunk. Think it is still a problem with tag and untag.

  @Clive_A 

Hello, thanks for responding. Yes I did that, that's why switch 1 works ok for me, but when interconnecting sw1 with sw2 I can't get the vlans to pass to switch 2, taking as an example the same configuration as on switch 1, that's why I ask if someone can help me with that part

Hi  @Egbolla 

Egbolla wrote

  @Clive_A 

Hello, thanks for responding. Yes I did that, that's why switch 1 works ok for me, but when interconnecting sw1 with sw2 I can't get the vlans to pass to switch 2, taking as an example the same configuration as on switch 1, that's why I ask if someone can help me with that part

Can you show me the diagram of your network?

What do you want to trunk?

I should have these information before I move on to the specific instructions for you.

  @Clive_A I share with you some images, in the first image is how it is currently working OK, the 2nd image is how I need it to be working

  @Clive_A  yes, that's what I did originally, using the same logic as for the 1st which worked OK, but surely as I was told around here, there must be a problem with the tagged / untagged. Thank you very much, I'm still trying but it's on that side apparently

Fixed, for some reason I still haven't discovered the Tagged / Untagged that didn't work for me before, now yes, it was really simple as I thought at first but I don't know why it didn't work before.

I put as a Recommended Solution the post where the image of TAG 10 & 20 is because it is simply that, I would like to know why it did not work before so I share the probable error, but I still don't know, thanks to those who responded helping me