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Network Dropouts on MacOS 14.7-15.0.1 with 8.1.6.0


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Ever since we deployed 8.1.6.0 we're seeing breakage on MacOS. Specifically all network access pauses for 30seconds or so. Example during ping

64 bytes from 128.84.44.120: icmp_seq=349 ttl=64 time=39.999 ms
64 bytes from 128.84.44.120: icmp_seq=350 ttl=64 time=26.542 ms
64 bytes from 128.84.44.120: icmp_seq=351 ttl=64 time=23.189 ms
Request timeout for icmp_seq 352
Request timeout for icmp_seq 353
Request timeout for icmp_seq 354
Request timeout for icmp_seq 355
Request timeout for icmp_seq 356
Request timeout for icmp_seq 357
Request timeout for icmp_seq 358
Request timeout for icmp_seq 359
Request timeout for icmp_seq 360
Request timeout for icmpWe've tried disabling _seq 361
Request timeout for icmp_seq 362
Request timeout for icmp_seq 363
Request timeout for icmp_seq 364
Request timeout for icmp_seq 365
Request timeout for icmp_seq 366
Request timeout for icmp_seq 367
Request timeout for icmp_seq 368
Request timeout for icmp_seq 369
Request timeout for icmp_seq 370
Request timeout for icmp_seq 371
Request timeout for icmp_seq 372
Request timeout for icmp_seq 373
64 bytes from 128.84.44.120: icmp_seq=352 ttl=64 time=22049.514 ms
64 bytes from 128.84.44.120: icmp_seq=353 ttl=64 time=21052.131 ms
64 bytes from 128.84.44.120: icmp_seq=354 ttl=64 time=20050.618 ms
64 bytes from 128.84.44.120: icmp_seq=355 ttl=64 time=19052.432 ms
64 bytes from 128.84.44.120: icmp_seq=356 ttl=64 time=18052.368 ms
64 bytes from 128.84.44.120: icmp_seq=357 ttl=64 time=17053.837 ms
64 bytes from 128.84.44.120: icmp_seq=358 ttl=64 time=16058.246 ms
64 bytes from 128.84.44.120: icmp_seq=359 ttl=64 time=15056.902 ms
64 bytes from 128.84.44.120: icmp_seq=360 ttl=64 time=14055.501 ms
64 bytes from 128.84.44.120: icmp_seq=361 ttl=64 time=13054.711 ms
64 bytes from 128.84.44.120: icmp_seq=362 ttl=64 time=12051.026 ms
64 bytes from 128.84.44.120: icmp_seq=363 ttl=64 time=11048.996 ms
64 bytes from 128.84.44.120: icmp_seq=364 ttl=64 time=10046.244 ms
64 bytes from 128.84.44.120: icmp_seq=365 ttl=64 time=9046.100 ms
64 bytes from 128.84.44.120: icmp_seq=366 ttl=64 time=8046.033 ms
64 bytes from 128.84.44.120: icmp_seq=367 ttl=64 time=7045.444 ms

When the dropouts happened the CPU usage of "com.eset.firewall" would spike to 100+ % of CPU.  After a minute or so it would drop back to less than 10% and network would return.

 

We've found that uninstalling ESET fixes these - various suggestions from the forums to turn off various scanning does not seem to be effective.

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