Help with GPRS and new split stack

Hi all, I'm running the new split stack on a LC 15 (osmo-bts and osmo-pcu from stock LC15, and osmo-bsc, osmo-msc, osmo-stp, osmo-hlr, ... from debian 9 armv7l nightly in a chroot). osmo-sgsn gives me: 0180225034309988 DGPRS <000f> gprs_subscriber.c:714 SUBSCR(250026920931392) Received GSUP message OSMO_GSUP_MSGT_SEND_AUTH_INFO_ERROR 20180225034309988 DGPRS <000f> gprs_subscriber.c:470 SUBSCR(250026920931392) Send authentication info has failed with cause 2, handled as: Permission denied 20180225034309988 DGPRS <000f> gprs_subscriber.c:478 SUBSCR(250026920931392) GPRS send auth info req failed, access denied, GMM cause = 'IMSI unknown in HLR' (2) 20180225034309988 DGPRS <000f> gprs_subscriber.c:828 SUBSCR(250026920931392) Updating subscriber authentication info 20180225034309988 DMM <0002> gprs_sgsn.c:726 MM(250026920931392/e550701e) Subscriber data update 20180225034309988 DMM <0002> sgsn_auth.c:219 MM(250026920931392/e550701e) Updating authorization (unknown -> authenticate) 20180225034309988 DMM <0002> sgsn_auth.c:236 MM(250026920931392/e550701e) Missing auth tuples, authorization not possible 20180225034309988 DMM <0002> sgsn_auth.c:248 MM(250026920931392/e550701e) Got authorization update: state unknown -> rejected 20180225034309988 DMM <0002> gprs_gmm.c:1140 MM(250026920931392/e550701e) Not authorized, rejecting ATTACH REQUEST with cause 'IMSI unknown in HLR' (2) 20180225034309988 DMM <0002> gprs_gmm.c:489 MM(250026920931392/e550701e) <- GPRS ATTACH REJECT: IMSI unknown in HLR 20180225034309988 DMM <0002> gprs_gmm.c:313 MM(250026920931392/e550701e) Cleaning MM context due to GPRS ATTACH REJECT osmo-hlr: 20180225034401485 DAUC <0003> db_auc.c:129 IMSI='250026920931392': No 2G Auth Data 20180225034401485 DAUC <0003> db_auc.c:165 IMSI='250026920931392': No 3G Auth Data 20180225034401485 DAUC <0003> hlr.c:79 250026920931392: IMSI known, but has no auth data; Returning slightly inaccurate cause 'IMSI Unknown' via GSUP But I added the IMSIs in the HLR. Which kind of auth data should I put to a SIM card from a mainstream carrier? Thanks, Rafael Diniz