Hm, groups for titan will usually expect you to have ak gear with some DL pieces and a primal weapon -people judge HP breakpoints and usually expect 5k+ tanks and 3,2k everything else, as well as being experienced with most phase (tho alot people still tend to die in p5). Rest really comes down to the individuals groupleaders, ive seen people getting groupkicked after dying 3 times, sometimes the group is really patient.

What to do? Prolly the same as on your server plus maybe looking for a FC or LS.