@Kevin_Z I am now talking about 4G only mode - that is the only mode I am interested in, because 3G is soon switched off in my region (Germany, Carrier is o2 / Telefonica). In that 4G only mode,...

@Kevin_Z There is no error log about the SMS issue - sending of SMS in 4G mode with VoLTE option switched on simply doesn't work with the current firmware (there is only one fimware released for...

@Leoz this is a known bug in the router software But you can temporarily DEACTIVATE VoLTE for sending SMS messages in 4G mode - see...

@GioGi @jimmy6500 @OverBurn @TP-Link According to the Amazon reviews for this device...

@jimmy6500 as reported already in my earlier posting #12, these error messages (although very confusing indeed) are not responsible for preventing the router to work in VoLTE mode - I see the SAME...

@GioGi @OverBurn I also have this kind of error messages (it's a never ending loop in the logfile), but VoLTE does work in my case, and I can use my analog phone device - so I do not care for these...