This sounds very similar to my earlier post https://community.tp-link.com/en/business/forum/topic/615552 Originally I though it was related to the port forwarding but I've come to the conclusion it...

@Clive_A What is the temperature level the fan starts please?

Hi Does anyone know a way to force the fans to be on on the ER8411? Or know at what temperature the fans come on? We have the router in a warm environment and with 2 SFP+ in use the router gets quite...

@Nebur692 I've gone through all versions but just saw 1.1.0 appear today. I will try it but I dont see anything in the change log to suggest this issue will go away

I have an issue where the performance of the port forwading seems to have an slow troughput problem on the ER8411. Any firmware version (have just installed the beta too) I have a 1Gbit / 1Gbit WAN...