Hi Any Chateau users here? I have one set up with 7.1b5, LTE firmware EG12EAPAR01A09M4G and the Optus SIM I discussed earlier. It's been working all week here in Ballarat with up to 3 CA's used and speedtests in the middle of the day exceeding 40Mbit. I sent it up to the client in Brisbane who is surrounded by Optus towers on all bands and it just wants to stick to B28 and UMTS with terrible speeds and lots of flapping. The B28 signals seem OK with an RSSI of -68. A cell scan doesn't show any of the other Optus cells except the ones with B28. No B1/3/7 etc. Can Optus selectively deny access to an IMEI on various channels? I updated the LTE firmware today to the latest and in the transition the client got a message that the SIM wasn't compatible with the service they were providing. A reboot fixed that though but the behaviour of sticking to B28 and UMTS was the same. I have disabled 3G and it's firmly stuck on B28. Any suggestions - need to get this running "normally" for Monday. Regards, Jason Hecker <https://www.upandrunningtech.com.au/> <https://www.upandrunningtech.com.au/>