Counters in the screenshot don't seem to add up - is there a bug?

[mdavids]

Investigate.

[mdavids]

Preliminary testing shows no bug - but further investigation is needed to make sure.

• One possible explanation: packets with mode 5.
• Other possible explanation: genuine NTPv1 (has no mode set, so client counter does not increase).
• Missed / dropped packages ?
• Screenshot was made while running - was the screen still building up? (unlikely?)
• What else?