Unifi 6.*.* worked years ago on 2 x Ubiquiti UAP-AC-LR work setup, recently shows "ERR_SSL_VERSION_OR_CIPHER_MISMATCH". Upgrade to 7.0.23 worked once. ONCE. Now back to CIPHER error. : r/Ubiquiti
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Configure DHCP UBIQUITI UniFi AP-AC-Lite, how to - HardReset.info