Telemetry issue

I'm having difficulty with my telemetry stream.  I am able to connect via TCP to my telemetry stream coming from my Raspberry Pi.  APM Planner is only able to update some of the Pixhawk parameters (gimbal stuff can't be written, other stuff can, not sure what else is missing).  I'm able to arm and disarm via APM Planner and Mission Planner as well, however neither get ANY gps signal data.

In addition, unless I use "Ctrl-T" to connect in mission planner it times out with 327 out of 331 params.  APM Planner doesn't time out like this, and eventually gets all 331 parameters downloaded, but still doesn't get GPS.

GPS does appear when connected via USB however.

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  • Does anyone have any idea what might be causing this?  I've read things about the GPS being starved for power and not putting out good data, but I'm using the 3DR power module as well as a 10 amp BEC on the servo rail for power.  Maybe the pixhawk "likes" the USB power more?  Is something else potentially wrong?

    • Solved:  I had "XONXOFF" in my ser2net config instead of "-XONXOFF"

      Figured that out by looking here: http://pixhawk.org/dev/remote_serial  NOTE:  Do not use the "-u" as it will not connect with it.

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