Dragino LGT-92 stops polling

Hi All,

i have been trying to fix a little quirk for a week, so we have 5 Dragino temp/ humidity sensors all logged onto a LG16 and to our Chirpstack Server, and they stay online ok, so link seems good, but we have 5x LGT-92 pendant GPS and they logon and show up online when i turn them on, but as soon as it hits its the uplink interval time of 5 mins 300 seconds, it stops. and shows offline in the dashboard for active devices, so far i have checks settings over and over it looks good, i’m a bit lost at why this is happening.