Did you try to list the resources of that equipment in System Manager?
Open System Manager (Start > All Programs > Solarwinds Orion > System Manager)
Right-Click on your device and select List Resources.
Do you see the interfaces listed as well as other resources? If yes, then select them as well as the Traffic and/or Error statistics poller if needed.
If not, then I would advise you to run a MIB walk on the IF-MIB:interfaces (OID = 220.127.116.11.2.1.2) to ensure your 1710 supports this standard MIB used by Orion.
I explained Re: Question: Monitoring volumes on a NetApp SAN.... how to Walk a MIB.
If you get no results for that MIB, check the doc of your equipment to know if this is possible to enable its support.