S23 Ultra connectivity issues
I recently traded in my phone (S10+) for the promo $1000 off and got the S23 Ultra. Since I activated the phone, the cellular data is not working and keeps disconnecting every 2 minutes. The 5G+ speed is really slow does't go beyond 100Mbs. My co-worker has T-Mobile 5G speed is exceeding 600Mbs. I called Att support, they couldn't help me get it fixed. I tried every setting and trick, no chnace. I stopped by an Att store today and told them my issue and said that many peolpe came in to report that their S23 is not working properly on Cellualr data. Any help?