@SiwyBoy Yes the problem was solved. You musst install a beta firmware first (don't know the Firmware Number) and then the current version. Then it works Link to the Beta Firmware is also available...

Hi, I have the same Issue with my ER8411. One Time update and that's it. I wonder what is functioning at this "Buisniss Grade" Router. First NAT Mapping does not work and now DDNS Service. I think it...

Hi @Pascal TPLink Support was so kind and provided me with the Beta Firmware. Now NAT Mapping seems to work correctly. Unfortunately I have to say that I find it a bit shameful for TPLINK that in a...

Hi everyone, Router: ER8411 V1.0 Firmware Version: 1.0.3 SDN Version: 5.9.31 have the same issue that my new ER8411 cant map the ports correctly to my 3CX PBX Server. Mapping is all over the place....

Hi @Fae thank you for escalating this. I will wait for any reply thanks Walter

@Fae Thank you for your reply. Here are some additional information you requested: Hardware version. V1.0 Firmware 1.0.2 Build 20210128 Rel. 56556 I have never installed any Firmware so far nether...