Originally Posted by RegisMT
I have the same issue on a 200 cabinet. Have to reset the main cabinet to get it working again. Last time happened was in November, and just got call today that emails stopped working. Tried to get into remotely and cannot but customer was able to log into it locally via ssh so will go onsite tomorrow. Changed external smtp hosts from yahoo business to gmail back in November and thought it was fixed, but still happening.

Have you tried changing the mobile messaging from the asc card to the sip card?

Thanks for the replies. Ports 1 and 2 of my SIP card for signaling and media stream are connected direct/split to Spectrum SBC device SIP trunking dedicated port. Our NSP is on the LAN and port fwding setup for remote access. The ASC is on customer LAN and I have it set to send SMTP to our relay server at our office, as we have done with many other sites on a Toshiba or Zultys. The ASC static address is not even pingable when this occurs. Maybe a port mirror switch and a laptop left onsite to capture would reveal something.