This is the problem with fixing something (especially with a server), you fix/plug one thing and it either breaks again either due to the fix not working or stress.

Its something you simply adjust/fix until it stable 'till the next problem crops up.

Think of it like an ageing car. You replace the brake pads, then the clutch starts the break, replace that, the turbo burns out, replace that, then the tyres need replaced.
Constantly having to adjust/replace/fix it until its in a working condition again.