I have a customer, where we have been seeing the same actually. Solarwinds reports a large amounts of discards on two AP ports, but according to the Dashboard, everything is dandy.
After upgrading from MS14.33 to MS15.18 the was "fixed" on the AP ports, but moved to another switch. No difference when upgrading to MS15.19.
After roll-back to MS14.33.1, the issue was "fixed" again on the new ports, but began reporting discards on the same two AP ports again.
Our discards were on normal RJ45 ports.
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