One thing I do for UPSs and other things - I make a modified port switch report and look for the first three MAC pairs of the MAC address (or otherwise look for the MAC address commonalities for the APC UPS devices for example) - where there is not an asset name match (i.e. lansweeper doesn't have an asset for it associated with the port) - and that gets me the APC UPS's that I haven't swept yet.
Select Top 1000000 tsysAssetTypes.AssetTypeIcon10 As icon,
tblAssets.AssetID,
tblAssets.AssetName,
tsysAssetTypes.AssetTypename As AssetType,
tblAssets.IPAddress,
tsysIPLocations.IPLocation,
tblAssets.Firstseen,
tblAssets.Lastseen,
tblSNMPInfo.IfIndex As [If],
tblSNMPInfo.IfDescription As Name,
tblSNMPIfTypes.IfTypename As Type,
tblSNMPInfo.IfAdminstatus As Admin,
tblSNMPInfo.IfMTU As MTU,
Ceiling(tblSNMPInfo.IfSpeed / 1000 / 1000) As Speed,
tblSNMPInfo.IfIPAddress As IP,
tblSNMPInfo.IfMask As Mask,
tblSNMPInfo.IfMacaddress As MAC,
tblAssets1.AssetName As Asset,
tblSNMPInfo.IfOperstatus,
tblSNMPAssetMac.AssetMacAddress
From tblAssets
Inner Join tsysAssetTypes On tsysAssetTypes.AssetType = tblAssets.Assettype
Inner Join tblSNMPInfo On tblAssets.AssetID = tblSNMPInfo.AssetID
Inner Join tblSNMPIfTypes On tblSNMPIfTypes.IfType = tblSNMPInfo.IfType
Left Join tsysIPLocations On tblAssets.IPNumeric >= tsysIPLocations.StartIP
And tblAssets.IPNumeric <= tsysIPLocations.EndIP
Left Join tblSNMPAssetMac On tblSNMPAssetMac.AssetID = tblSNMPInfo.AssetID And
tblSNMPAssetMac.IfIndex = tblSNMPInfo.IfIndex
Left Join tblAssetMacAddress On tblAssetMacAddress.Mac =
tblSNMPAssetMac.AssetMacAddress
Left Join tblAssets tblAssets1 On
tblAssets1.AssetID = tblAssetMacAddress.AssetID
Where tsysAssetTypes.AssetTypename = 'switch' And tblAssets1.AssetName Is Null
And tblSNMPAssetMac.AssetMacAddress Is Not Null And
tblSNMPAssetMac.AssetMacAddress Like '28:29:86%'
Order By tblAssets.IPNumeric,
[If]