One final notice as I'm closing all browser tabs related to this topic Snapshot from https://community.tp-link.com/en/business/forum/topic/559150 (Edit: Hank21 I just realized this thread was posted...

@nicolati I just took a look at my OC300 which only manages its local site, no remote sites. It's "HTTPS Port for Controller Management" is at port 443, same as yours. So if port 443 works for...

@Ryan213 I FIXED IT! I was no longer able to upgrade firmware on non-omada-router sites as well (or maybe I never did), so I started a port to port comparison of all the related tp-link web page I...

Vincent-TP wrote Hi @Tintronic Thank you for the information. Do you keep the running log and the config file before the update? We may find some clues Hi @Vincent-TP Yes, I've setup OC200 with...

Hi @Vincent-TP Vincent-TP wrote Hi @Tintronic We had similar feedback before. It was the WAN settings are wiped after the firmware update. Did that happen on your case? Did the WAN connection type...

Yesterday I updated my OC200 V1 controller which manages 4 sites from the previously released FW 1.31.3 to 1.32.6 to see if it solved the issue of not being able to update devices on remote sites...