We have a home full of P9's and these have been reasonably reliable for several years, albeit with occasional instabilities now and then.

In the past week or so we had a bit of a system melt down but seemed to recover things with a firmware update - or so I thought.

Overnight, same old issues : units going on and off line at random.

With these problems, and knowing that with a largish stone built house through which wi-fi struggles to penetrate (hence the alure of PLE in the P9's), I've began to seriously consider a different, and more simple mesh solution. Most people say that PLE is problematic and I was wondering about getting a more powerful antenna based system which may have more horsepower so as to build a more stable mesh network without using PLE. 

Some of the P9 satellites  have a direct ethernet connection (just two, sadly). The other six rely upon a combination of PLE and wi-fi. The PLE is sometimes coming via the built in capability of the P9's and sometimes via separate PLE plug in units. Really, it's no surprise that I am having stability issues !!  Without the PLE, we simply wouldn't have whole house wi-fi with the P9's.

Ideally, I'd have ethernet back haul on every node but it simply isn't practical in this house on account of it being an old property which a previous owner modernised in such a way that drilling holes through voids, etc. isn't going to end well. So this also limits the chances of an AP based mesh too.

So, I began to wonder if there might be a more powerful antenna based mesh system (great if it was TP-link as I may be able to utilise some of the P9's to help propagate the wi-fi to the extremities of our house) or if some other brand is the only way to go. I had wondered if the XE75 system, as an example, is more punchy than the P9 - or, maybe there is a different product which is better brute force? Overall system speed isn't my main concern - we have Starlink (about 300Mb/s) and little chance of ever getting fibre and little need for high speed file distribution inside the house - the key thing is network stability.

Any thoughts are most welcome - I'm based in the UK, by the way.

thanks