Toto,
Do you mean that there was a sudden increase in UL TBF fail radio ? From 0.6% before to 25% today ?
In this case, it is clearly a TRX or GPU “bug”. Normally, it can besolved by restarting the GPRS in the cell, or in the whole MFS, or perhaps restarting the TRX or BTS. Good luck 🙂
Pix