Hi DetmL
For the two models you speak about we could gathered generic PIN ( cf
WPSPIN > Générateur PIN WPS par défaut routeurs Huawei, Belkin ...)
DSL-2730U >
20172527
DSL-2750U >
21464065
If there is a common PIN we already now that we deal with a "weak" WPS implementation and so there is hope... it could be "pixie dusted" somehow...
If you have one of this models could you please send to soxrok2212 / wiire (or you can send it to me and i wil share with them) a *.cap file with the reaver 1.5.2 stdout?
Maybe if that is not asking too much you can add some screenshot /copy-paste from the administration interface with Wifi-WPS security parameter and information about device ?
Thanks in advance