@Ingo_B. Hi Ingo, this seems to be a continuing story then, I have the same problem with the MR600 v3 (see: https://community.tp-link.com/en/home/forum/topic/603932?sortDir=ASC&page=1). @Sunshine ,...

@Archer_8 Your posts seem to be empty, what are you trying to say?

@Philipp_1975PB Hi Philipp, has your problem been solved? Seems similar to what I am experiencing with an MR600 v3 (see https://community.tp-link.com/en/home/forum/topic/603932). And I also have not...

@Sunshine (and TP-Link MR600 team generally) So, still roaming in Germany (same location). Created a new profile, ISP selection is set to automatic (note: roaming), manual band selection set to 1, 3,...

@Sunshine PS: Just in case, attached is screenshot of the System Log, which still shows a constant on-and-off LTE PLUS connection:

@Sunshine Hi, I am still in Germany, roaming with my FL1 SIM (MR600 is at the same location as before), and I did another SpeedTest. Results are still relatively good (105/41 Mbps (see below))....