yesterday i had the chance to flash a RE450 v2 with the latest supported version 21.02.7 (compiled with latest modules from Firmware Selector). From now, everything works fine unless you configure the 5Ghz radio to be a Client to a AP and create a Master Access Point at the same time. The result is a inactive 5Ghz radio. This seems to be a known bug https://github.com/openwrt/openwrt/issues/6089 Restarting or enable/disable wont change anything. By reading the threads here: Support for TP-Link RE450 v1/v2 for 22.X/23.X/24.X releases (Change of partition layout) its obvious that you cant regulary flash the latest 22,23,24 images to the device due to some really bad decision on the partitions size for the device. So my questions here: Is there any (straight) way to safely change the partition layout on the device to safely flash the newer firmwares? Anybody know a workaround to fix that 5Ghz issue on the 21.02.7 firmware?
The radio working in dual mode will not come up until the STA connection is established. You can have AP on other radio or connect wired in the meantime.
I am running a lot of RE450v1 devices with 23.X or 24.X Software and I use as well a lot of 5GHZ WDS STA connections with AP in the same Radio without any issues.
Thamks for the replies. Yes, i am aware of the flash size thing. I had to strip down some other firmwares with firmware builder to make room for some other packages. As long as the devices can be flashed and are running stable, i am ok with it.
Now the sta connects sccessfully. Had to set the right country code for the wireless interface. Starting the interface now wont disable the sta and ap. But even after successfully sta connection and ap is up, the ap wont be visible on any external device. I have tons of these messages in the logs:
Mon Aug 4 13:05:29 2025 daemon.notice wpa_supplicant[1516]: wlan0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
Mon Aug 4 13:13:46 2025 daemon.err hostapd: 20/40 MHz: center segment 0 (=254) and center freq 1 (=5510) not in sync
I do have a reliable connection to the wifi router. Thats no problem at all. The thing that wont work is the AP based on the 5Ghz radio. A STA connection is made to the wifi router using the 5Ghz radio. But putting a AP on the same radio wont be visible to anything.
If the AP that you connect to is on a DFS channel, combined operation usually is not possible. It could have stopped working because the AP changed channel. I see freq=5510, which is DFS in many countries.