They Also Serve by Mike Moscoe

These are fun, but I would like them better if Mr. Moscoe/Shepherd would try a different plot. On the other hand - space opera is space opera. It is what it is and why expect more?

Ray Longknife leaves his pregnant wife and goes forth on a diplomatic mission. This time the miscalculated wormhole jump is the result of sabotage. I wonder why he doesn't call them wormholes like everybody else. And Ray and his crew are taken to a world occupied by the descendants of the crew of a jump ship that never returned about three hundred years earlier. It's a small galaxy and a plot which he recycles in one of the few others which I have read.

While his ship's captain is searching for the combination for a return to their home space, Ray and his team are planetside dealing with the locals.

Turns out that the planet was colonized millenia earlier by some folks who constructed a computer system made of the material of the planet itself but eventually went off and left it on its own, and human activity is interfering with its functions. The computer/planet quite understandably is fighting back. However, in the meantime it cures Ray of the residual effects of his military engagement with troops under the command of his now loyal chief of staff (in this universe, peace makes stranger bedfellows than war).

I think that Moscoe/Shepherd must have read Lem's Solaris at some point in his misspent youth - or at least seen one of the movies. I suppose it is possible that he came up with the sentient computer/planet on his own - but somehow I doubt it.