https://amzn.eu/d/92Ci1ES

I have used this one for 15 months and cannot complain.

I must also say, that now that I have finally had fiber installed, I am saying goodbye to  5G. I am thankful for the last 15 months ( It allowed us to move here and work from home) but I am ready to move to a real connection.

Sadly, every directional and omni directional Antenna i have tried for now is much worse when installed even outside compared to the internal antennas of the Router which cant be right because it is placed on the inside behind walls.

  @erdnuss my device is in the basement. Without the external antenna I get 0 signal, with the antenna I get between 12 to 15 dbm Snr which is excellent. In my case the one antenna works, but that is only my case. I can not comment on your particular situation or other antennas as I went blind with this one, based on reviews, and luckily it worked for me. 

  @pintoca 

that is what i would have expected but even the directional antenna pointed towards the cell is worse than the internal ones...

something aint right. 

  @erdnuss maybe the connectors? Or the cable? Did you add additional connectors or cable length to the antenna? From my RF days I know that adding more cable creates Stationary waves, cable needs (or used to be needed) to me matched to the wavelength used. 

I added the screenshot so you could see I was connected to N78 as you need 

  @erdnuss  also, just a dumb question. Did you disable the internal antennas in the UI? (sorry to ask, no insult intended 😂) 

  @pintoca 

Yes, I did. The Poynting Antenna comes with pre installed cables, so they cannot be that bad.

There must be something wrong with the router. The feature is just useless (at least on my device).