@Piersandro I am only basing my statement on what's been said elsewhere in this forum. Globally, different band combination are used by carriers, and router manufacturers make choices as to which modems to use that support certain bands and their combinations.

For example, the Huawei B525 doesn't support 1+3 and the more modern B535 does.

Happy to be corrected by anyone if what I'm summarising is incorrect.

@dgr1 unfortunately that's not entirely true!
the B525-65a from "Three Austria" supports band 1/3

the support confirmed that to me.

@Wuchte Yes, you are right. Which proves my point that this is all quite complicated and most people won't fully appreciate what they are buying until they try it for themselves. 

@darant 

bene, ma non si ricevono gli sms...

A cosa è servito il firmware precedente studiato per riceverli? doveva essere compreso in questo firmware per bande manuali. Giusto?

Come si risolve il problema degli sms?

Grazie

Still seeing stability issues on the beta build.

Needing to reboot once or twice a day. 

Downloads start, but slow to a halt before failing. 

Streaming churns, even though speedtests show high results. SSLs fail to load and require refreshes, then instantly work.

To be honest. Really unimpressed by this products stability. May have to send it back. 

@Anvesh I downloaded the latest official firmware from the Tplink website and I followed the normal update procedure. Nothing different.

The official firmware ovewrite the beta firmware.

@Piersandro Yes, this worked for me too. It did retain settings though. 

@Anvesh try from the italian page: https://www.tp-link.com/it/support/download/archer-mr600/#Firmware