SAS is not reachable

Hi everyone, we had a pretty bad DDoS a few weeks ago and caused our 3.6 (CBRS) AP’s to stop being able to communicate with the SAS (Google). The error on the AP’s GUI was (SAS is not reachable. Transmit disabled). We didn’t realize subs were down until support started to get calls and then said something to NOC. It took a reboot to get them to reestablish a connection with the SAS. So I’m wondering if there is a way to monitor for that GUI message via OID so we can monitor it in PRTG or something so that we can react to this type of thing sooner than relying on support to notify us. Any help is appreciated!