second gear pop-out fixes.
expensive - requires taking transmission apart:
https://californiamotorsports.net/collections/porsche-986-boxster-5-speed-transmission-parts/products/cms-996-shift-arrester
cheap - 1/2 hour install:
2ND GEAR POP-OUT UPGRADE-GBOX Transmission
eric johnson (sp?) on this forum sells a version of the gbox piece as well - that's what i have in my car. 2nd gear engagement is a failure mode of the 986 6-speed transmission; fluid changes i think only delay the inevitable.