We have a pro version and have no ad. Support most old type dvrs and more new type dvrs which port is 34567 or 37777 or 8101 or 8000 or 5800 ect. Because these new type dvrs default port is 37777 or 34567 or 8000 or 5800 or 8101. But some old dvr it is default port maybe is them too. The app mistakenly believes that the old dvr is a new type device.
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