@Jathra It's in the second comment on the first page of this thread. https://static.tp-link.com/2020/202005/20200506/Archer_MR600v1_1.1.0_0.9.1_%5b200331-rel65841%5d_up_boot_2020-04-14_08.47.25.zip

I just wanted to say I also had the SMS issue, I bought my router about 6 weeks ago and was working fine for the first 4 weeks, then encoutered the SMS issue. I upgraded to the beta software and that...