How to fix communication failure on ZKTeco Ultima?
- CChristian MurphyAug 4, 2025
If communication fails on your ZKTeco IP Access Controllers, there are a couple of things to check: * First, incorrect communication settings either at the device or the host PC could be the issue. You should check and correct the device IP Address, Netmask, Gateway, and DNS if necessary. * Second, the communications cabling might be connected incorrectly. Make sure all communication cables are routed correctly and properly connected.