Thank you @Fae for the ticket support, with your intervention It's now a much better approach from TP-Link to handle my issue. About the small bug to enter 1 nat rule for ports range 9000-10999, I...

Hello @shberge not yet, I will do the update this weekend and then next week go on place to test again with the V1.0.3. I don't have any real support from TP-Link...this is really bad as I had...

@Pascal After more test and despite the possibility to got Teamviewer help with TP-Link support due to a +8 GMT forks proposal from them, and production site can't be interrupted during daytime...

Dear @Hank21 Can you please explain to me how a update of the SDN controller will fix an issue with a router in STAND ALONE mode ? I'm afraid we are loosing time with just a focus on the SDN firmware...

@shberge OK, then it can be a SDN firmware issue AND in the same time a firmware Device Router Issue because I got the problem with the router in STAND ALONE mode too. do you have possibility to test...

@TReimann seems you got the same issue than me, apparently ER8411 is not ready to correctly manage Ports adresses translations. I opened a ticket support with TP-Link, but once they seen I posted on...