i had a chat conversation with support and they open a ticket for this. waiting for email from support.

I double checked and i'm sure now, that the events on WR1502x are also causing these "link down" events on my Linux host, where it is directly attached to. when i disconnect the router and attach it...

the messages also appear when there is NO lan cable connected to LAN or WAN port, so apparently this is not issued/triggered by any external source...

Hello, i'm using this router in client mode and the red led lights up from time to time (i.e. blue led turns into red) and the log is getting spammed with senseless information like below....

@David-TP thank you, that's fantastic.

@David-TP thanks, but i have freshly setup this device via factory reset. it should automatically derive wifi security settings based on those active on the main router? apparently, it does not work.