hey guys, really struggling to get an AT&T SIM working in an opengear IM7200. the 7200 says it's stuck at "Establishing connection". the 7200 also sees the SIM properly - correct ICCID/MDN etc.
i've called opengear support - they say it's a problem with the AT&T. AT&T support says it's a "provisioning error" however the guy who set the SIM up for me (it's a corporate SIM card so i don't handle that process directly) says it's set up just like anything else. if i take the SIM out and put it in an old android phone - it just works with no configuration necessary.
there are a few APN configurations ive seen around. anybody here ever get this to work? could you PM what you did?
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