YateBTS Excessive TOA Errors

[Tom]

I have had a working YateBTS setup for a month now, haven't used it in 2 weeks but today when I turned it on the handsets could connect but on the iPhones it said "No Service" on the top bar.
In the verbose logs it spams excessive TOA errors:
The version of YateBTS is from here: https://blog.strcpy.info/2016/04/21/building-a-portable-gsm-bts-using-bladerf-raspberry-and-yatebts-the-definitive-guide/

Heres the logs on max verbosity:
http://pastebin.com/UdrrNQ1K

And heres my bladeRF cli version:

Code: [Select]

root@openbts-VirtualBox:/home/openbts# bladeRF-cli -i
bladeRF> version

  bladeRF-cli version:        1.4.0-git-unknown
  libbladeRF version:         1.7.2-git-unknown

  Firmware version:           1.9.1
  FPGA version:               0.1.2

bladeRF>

Any idea what I am doing wrong?

EDIT: After further investigation this issue appears to go away when the band is changed to GSM900 (Previously was GSM850)