![]() ![]() ![]() 50's OK, -60's and that is acceptable if there is no interference. Also make sure there is not another WiFi base station using the same name as your Airport Extreme 802.11ac. Via the menus find Utilities WiFi Scan and Performance.įor the WiFi Scan you want to make sure you are not getting interference from other WiFi base stations and 2.4GHz/5GHz signal sources. If there is more than 1 valid entry left, drag your Airport Extreme 802.11ac network name to the top of the list.ĭoes your iMac get a strong signal from the Airport Extreme 802.11ac. Delete any entries that are not normally used. What happens if you clean up your System Preferences -> Network -> Advanced -> WiFi -> Preferred Networks list. System Preferences -> Network -> Advanced -> TCP/IP -> DHCP Client ID (make it a simple upper/lowercase/number name). What happens if you give the iMac a DHCP Client ID (wild suggestion, and I do not really expect it to change anything). Is the Airport Extreme 802.11ac base station the ONLY router and WiFi base station in the house? I'm wondering if there is maybe multiple subnets in play.ĭoes your problem iMac network normally with the other iMac and with the internet? that is to say, do you have issues with just administrating the Airport Extreme 802.11ac from this iMac, or are there other networking issues happening?Ĭan you administer the Airport Extreme 802.11ac via an Ethernet cable to one of the 3 switched ports? Just an experiment to isolate WiFi connection vs Ethernet connection.
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