F9P base and Leica rover

We set up a base using F9P sending NTRIP corrections successfully to another F9P configured as a rover, acc. 1 cm. Using a Leica rover we stuck in float with appr. 1 m accuracy. Correction age is 1 second. What’s wrong?

Which Leica receiver? Which RTCM messages is it expecting?

Hej Eric, it is a Leica iCON gps 70. It expects RTCM 3.2 MSM. We are only able to send RTCM 3.4, but we deactivated MSM7 messages, so we use MSM4.

Leica performance is restricted by a “paywall”.

Can you confirm what you purchased ?
As you can see below, it’s possible to have a GPS L1 only, with no Network RTK :