Hi. Since you don’t say - which version of the Firmware are you running? If you’re not running 4.6.1 already, then that would be the first thing to do - upgrade both sides to 4.6.1 and see if this is an artifact of some bug, which has already been fixed.
this is a signal issue. check your alignment and antenna connections on both ends. run a spectrum scan to see if you have any interference that could be killing the links ability to stay sync’d
Rodrigo - what have you tried in order to resolve this?
have you tried changing channels? Or channel widths?
have you tried configuring it to only use one radio temporarily, just to simplify the options and to see if it can be stable with only 1 radio linking? I had a tricky PTP550 and going down to a single radio link, getting it stable, and working up from there really helped me.
have you run a Spectrum Analysis to see if there’s new noise? That’s tricky, since the Cambium radios show themselves in the SA, but it might show a ‘quiet place’ to move one of the radios to? It’d be really good if Cambium showed both sides of the SA on the same dashboard, at the same time (like other radios do) but all those suggestions are all ‘under consideration’ for years now.
have you opened a support ticket with Cambium. I’d recommend doing that, as well as following up with the user community here to see what suggestions we have. But Cambium can looks at your support files and see things which we can’t see.
Unfortunately this might be tricky to resolve - for my 2c, the PTP550 is disappointing since reconfiguring anything on one radio, unlinks both radios - so it’s way more nerve racking to test and configure things than it should be. A dual radio PTP device should allow configuring and tweaking each radio independently, without disrupting the entire link.