@D-Lex 

How are you configuring the port in your port forwarding rules?  Also how many port forware rules do you have enabled?

@Carl 

thank you for your comment.

I did setting like this. I changed setting in 

Vertual Servers section only.

Do I need to set up for other section?

@ArcherC8 

Yes, I reserved internal IP address for the device which I want to open port. And also, I did reboot rooter after port forwarding setting.

@ArcherC8 

Hello. Thank you for your advise.

I tried to change from "All" to "TCP" and rebooted but port 8883 is still closed.

MyQ support says like below. Need to open 53 and 8883.

TCP/UDP port 53 open (Internet Gateway only)

Inbound and outbound /TCP port 8883 open

Verify that ports are not being blocked by your router or a firewall product

Yes, my devise is assigned 192.168.0.206. I checked at Status section in the router setting page.

@ArcherC8 

UPnP is already turning on.

@D-Lex 

So I have exactly the same problem, Chamberlain blame the Router, TP Link blame the ISP and Chamberlain and the ISP blame Chamberlain and TPlink :-)

I haven't managed to open any ports even though I followed pretty much the same path.

I have the AX11000.

@Scott79 we have a Archer 10 and we have had the same issues with all the finger pointing.  Our old competition router worked fine with MYQ.  It is funny that the TP Link router has the problem when all you do is change out the router and we cannot get TP Link to advise us all how to get port 8883 open.