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Multiple macs losing ipv4 sporadically

F

Floyd0190

macrumors newbie
Original poster
Oct 24, 2025
1
0
In our enterprise fleet of macs, we've recently had a number of issues where devices are losing their IPv4 connectivity, and this bounces back and forth until the device is eventually rebooted to restore it.

I'm struggling to identify a common trigger for it. All the users are on their own home networks, and all theiro ther devices work - it's only their mac that loses access. It doesn't appear to be linked to anything common either - for example my device lost connectivity when i tried to load a webpage. For others it happens in the middle of meetings, calls, etc.

I had a look through /var/log/wifi.log and see blocks like this repeating until the device was rebooted:

Code: 
Thu Oct 23 10:09:28.827 [airport]/447 @[1202176.257629] (airportProcessCommand.m:1646) dq:'com.apple.airportd.server.command.q'/tid[0xa3fdeb] Processing IPv4: 'State:/Network/Global/IPv4'
Thu Oct 23 10:09:28.827 [airport]/447 @[1202176.257705] (airportProcessCommand.m:458) dq:'com.apple.airportd.server.command.q'/tid[0xa3fdeb] State:/Network/Global/IPv4
Thu Oct 23 10:09:28.827 [airport]/447 @[1202176.257757] (airportProcessCommand.m:466) dq:'com.apple.airportd.server.command.q'/tid[0xa3fdeb] No valid components format from SCDynamicStore: serviceKey:'State:/Network/Global/IPv4'
Thu Oct 23 10:09:28.827 [airport]/447 @[1202176.257789] (airportProcessCommand.m:1728) dq:'com.apple.airportd.server.command.q'/tid[0xa3fdeb] Processed events, count[ 22], @[1202176.232817], took 0.024964
Thu Oct 23 10:09:28.828 [airport]/447 @[1202176.259406] (airportProcessCommand.m:1728) dq:'com.apple.airportd.server.command.q'/tid[0xa3fdeb] Processed events, count[  0], @[1202176.258025], took 0.001374
Thu Oct 23 10:09:28.830 [airport]/447 @[1202176.260927] (airportProcessCommand.m:1728) dq:'com.apple.airportd.server.command.q'/tid[0xa3fdeb] Processed events, count[  0], @[1202176.259632], took 0.001283
Thu Oct 23 10:09:28.832 [airport]/447 @[1202176.262932] (airportProcessCommand.m:1728) dq:'com.apple.airportd.server.command.q'/tid[0xa3fdeb] Processed events, count[  0], @[1202176.261177], took 0.001747
Thu Oct 23 10:09:28.835 [airport]/447 @[1202176.266267] (airportProcessCommand.m:1728) dq:'com.apple.airportd.server.command.q'/tid[0xa3fdeb] Processed events, count[  0], @[1202176.263146], took 0.003111
Thu Oct 23 10:09:28.837 [airport]/447 @[1202176.268367] (airportProcessCommand.m:1728) dq:'com.apple.airportd.server.command.q'/tid[0xa3fdeb] Processed events, count[  0], @[1202176.266528], took 0.001810
Thu Oct 23 10:09:28.840 [airport]/447 @[1202176.270905] (airportProcessCommand.m:1728) dq:'com.apple.airportd.server.command.q'/tid[0xa3fdeb] Processed events, count[  0], @[1202176.268841], took 0.002057
Thu Oct 23 10:09:28.842 [airport]/447 @[1202176.273041] (airportProcessCommand.m:1728) dq:'com.apple.airportd.server.command.q'/tid[0xa3fdeb] Processed events, count[  0], @[1202176.271188], took 0.001846
Thu Oct 23 10:09:36.585 [airport]/447 @[1202184.015694] (airportdMain.m:1864) dq:'com.apple.airportd.server.timer.q'/tid[0xa3ff37] Health check alive, checkin@[1202184.015396], fault[0] crash[0] threshold[5 sec], count[226830], gRunLoop: checkin@[1202183.735458] count[250074] last[1202183.735458] max[3.957072] diff[0.279937], faults[0], last faulted @count[0], thresholdExceeded[0]
Thu Oct 23 10:09:37.223 [airport]/447 @[1202184.653608] (airportProcessCommand.m:1640) dq:'com.apple.airportd.server.command.q'/tid[0xa3ff23] Processing DHCP: 'State:/Network/Service/61928690-5499-48D9-991D-BB5F837DA5F2/DHCP'
Thu Oct 23 10:09:37.223 [airport]/447 @[1202184.653973] (airportProcessCommand.m:191) dq:'com.apple.airportd.server.command.q'/tid[0xa3ff23] State:/Network/Service/61928690-5499-48D9-991D-BB5F837DA5F2/DHCP
Thu Oct 23 10:09:37.224 [airport]/447 @[1202184.655094] (airportProcessCommand.m:220) dq:'com.apple.airportd.server.command.q'/tid[0xa3ff23] DHCP airport_changed = 1, service:61928690-5499-48D9-991D-BB5F837DA5F2
Thu Oct 23 10:09:37.226 [airport]/447 @[1202184.656900] (airportProcessCommand.m:1646) dq:'com.apple.airportd.server.command.q'/tid[0xa3ff23] Processing IPv4: 'State:/Network/Service/61928690-5499-48D9-991D-BB5F837DA5F2/IPv4'
Thu Oct 23 10:09:37.227 [airport]/447 @[1202184.658170] (airportProcessCommand.m:458) dq:'com.apple.airportd.server.command.q'/tid[0xa3ff23] State:/Network/Service/61928690-5499-48D9-991D-BB5F837DA5F2/IPv4
Thu Oct 23 10:09:37.232 [airport]/447 @[1202184.663007] (airportProcessCommand.m:505) dq:'com.apple.airportd.server.command.q'/tid[0xa3ff23] IPV4 State change for en0
Thu Oct 23 10:09:37.234 [airport]/447 @[1202184.664887] (airportProcessCommand.m:509) dq:'com.apple.airportd.server.command.q'/tid[0xa3ff23] Invalid IPv4 state dictionary for 'en0'
Thu Oct 23 10:09:37.236 [airport]/447 @[1202184.667293] (airportProcessCommand.m:600) dq:'com.apple.airportd.server.command.q'/tid[0xa3ff23] ARP offload settings ({
Thu Oct 23 10:09:37.237     "ADDR_LIST" =     (
Thu Oct 23 10:09:37.237         {length = 4, bytes = 0x00000000}
Thu Oct 23 10:09:37.237     );
Thu Oct 23 10:09:37.237     "ROUTER_IP_ADDR" = {length = 4, bytes = 0x00000000};
Thu Oct 23 10:09:37.237     "ROUTER_MAC_ADDR" = {length = 6, bytes = 0x000000000000};
Thu Oct 23 10:09:37.237 })
Thu Oct 23 10:09:37.237 [airport]/447 @[1202184.668442] (airportProcessCommand.m:1728) dq:'com.apple.airportd.server.command.q'/tid[0xa3ff23] Processed events, count[  2], @[1202184.653457], took 0.014963
Thu Oct 23 10:09:37.302 [airport]/447 @[1202184.732958] (airportProcessCommand.m:1646) dq:'com.apple.airportd.server.command.q'/tid[0xa3ff78] Processing IPv4: 'State:/Network/Global/IPv4'
Thu Oct 23 10:09:37.302 [airport]/447 @[1202184.733157] (airportProcessCommand.m:458) dq:'com.apple.airportd.server.command.q'/tid[0xa3ff78] State:/Network/Global/IPv4
Thu Oct 23 10:09:37.302 [airport]/447 @[1202184.733273] (airportProcessCommand.m:466) dq:'com.apple.airportd.server.command.q'/tid[0xa3ff78] No valid components format from SCDynamicStore: serviceKey:'State:/Network/Global/IPv4'
Thu Oct 23 10:09:37.302 [airport]/447 @[1202184.733341] (airportProcessCommand.m:1728) dq:'com.apple.airportd.server.command.q'/tid[0xa3ff78] Processed events, count[  1], @[1202184.732919], took 0.000413
Thu Oct 23 10:09:48.870 [airport]/447 @[1202196.301129] (airportProcessCommand.m:1728) dq:'com.apple.airportd.server.command.q'/tid[0xa3ff75] Processed events, count[  0], @[1202196.283573], took 0.017536
Thu Oct 23 10:10:06.642 [airport]/447 @[1202214.072968] (airportdMain.m:1864) dq:'com.apple.airportd.server.timer.q'/tid[0xa3ff78] Health check alive, checkin@[1202214.072850], fault[0] crash[0] threshold[5 sec], count[226860], gRunLoop: checkin@[1202213.735247] count[250104] last[1202213.735247] max[3.957072] diff[0.337602], faults[0], last faulted @count[0], thresholdExceeded[0]
Thu Oct 23 10:10:07.718 [airport]/447 @[1202215.148870] (airportProcessCommand.m:1640) dq:'com.apple.airportd.server.command.q'/tid[0xa3ff8a] Processing DHCP: 'State:/Network/Service/61928690-5499-48D9-991D-BB5F837DA5F2/DHCP'
Thu Oct 23 10:10:07.718 [airport]/447 @[1202215.149144] (airportProcessCommand.m:191) dq:'com.apple.airportd.server.command.q'/tid[0xa3ff8a] State:/Network/Service/61928690-5499-48D9-991D-BB5F837DA5F2/DHCP
Thu Oct 23 10:10:07.719 [airport]/447 @[1202215.149741] (airportProcessCommand.m:220) dq:'com.apple.airportd.server.command.q'/tid[0xa3ff8a] DHCP airport_changed = 1, service:61928690-5499-48D9-991D-BB5F837DA5F2
Thu Oct 23 10:10:07.720 [airport]/447 @[1202215.151285] (airportProcessCommand.m:1646) dq:'com.apple.airportd.server.command.q'/tid[0xa3ff8a] Processing IPv4: 'State:/Network/Service/61928690-5499-48D9-991D-BB5F837DA5F2/IPv4'
Thu Oct 23 10:10:07.720 [airport]/447 @[1202215.151475] (airportProcessCommand.m:458) dq:'com.apple.airportd.server.command.q'/tid[0xa3ff8a] State:/Network/Service/61928690-5499-48D9-991D-BB5F837DA5F2/IPv4
Thu Oct 23 10:10:07.721 [airport]/447 @[1202215.152417] (airportProcessCommand.m:505) dq:'com.apple.airportd.server.command.q'/tid[0xa3ff8a] IPV4 State change for en0
Thu Oct 23 10:10:07.723 [airport]/447 @[1202215.153955] (airportProcessCommand.m:517) dq:'com.apple.airportd.server.command.q'/tid[0xa3ff8a] IP Address: 192.168.1.181
Thu Oct 23 10:10:07.724 [airport]/447 @[1202215.155072] (airportProcessCommand.m:539) dq:'com.apple.airportd.server.command.q'/tid[0xa3ff8a] IP subnet mask: 255.255.255.0
Thu Oct 23 10:10:07.724 [airport]/447 @[1202215.155156] (airportProcessCommand.m:548) dq:'com.apple.airportd.server.command.q'/tid[0xa3ff8a] Router IP Address: 192.168.1.254
Thu Oct 23 10:10:07.724 [airport]/447 @[1202215.155213] (airportProcessCommand.m:557) dq:'com.apple.airportd.server.command.q'/tid[0xa3ff8a] Default Gateway IP Address: 192.168.1.254
Thu Oct 23 10:10:07.724 [airport]/447 @[1202215.155264] (airportProcessCommand.m:566) dq:'com.apple.airportd.server.command.q'/tid[0xa3ff8a] Router MAC Address: 70:97:41:9b:ce:ea
Thu Oct 23 10:10:07.731 [airport]/447 @[1202215.161615] (airportProcessCommand.m:600) dq:'com.apple.airportd.server.command.q'/tid[0xa3ff8a] ARP offload settings ({
Thu Oct 23 10:10:07.731     "ADDR_LIST" =     (
Thu Oct 23 10:10:07.731         {length = 4, bytes = 0xc0a801b5}
Thu Oct 23 10:10:07.731     );
Thu Oct 23 10:10:07.731     "ROUTER_IP_ADDR" = {length = 4, bytes = 0xc0a801fe};
Thu Oct 23 10:10:07.731     "ROUTER_MAC_ADDR" = {length = 6, bytes = 0x7097419bceea};
Thu Oct 23 10:10:07.731 })

The device seems to reprocess it's IPv4 state, something happens that i gets Invalid IPv4 state dictionary for 'en0' then 30 seconds later it goes through this cycle again and gets a valid DHCP config. Rinse-repeat until reboot.

Even for the brief period it has the valid config, it's not able to transit any traffic.


Any one had any similar experiences? We noticed a big uptick in these reports with mac OS 26, though some of our users state it was also happening on 15.7. Nothing has changed config or software-wise in our environment as far as I can tell.

There is a Cisco DNS proxy on the devices, but we've been using it for the last 5 years with no issues and even with that, the devices aren't able to ping out to ip e.g 8.8.8.8 or via a dns name like google.com.
 
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