After updating my imac (27-inch, Mid 2011) using the software update, I've been having problems with my wifi connection.
The wifi does connect to my access point, but the connection quality is quite bad.
With ping, on average, I get 60% loss to my access point.
The signal strength seems fine: RSSI -47
I've tried also installing the combo update. The wifi issue remains the same.
The wifi was working properly prior to the update.
I've tried connecting to my access point with open authentication and with WPA2/AES with the same results.
Please help!!
A solution besides a system restore would be preferable.
Wifi signal strength details:
...$ /System/Library/PrivateFrameworks/Apple80211.framework/Resources/airport -s
...
crunch 00:18:84:89:3f:ec -47 10 Y BE WPA2(PSK/AES/AES)
...
Ping details:
...$ ping 192.168.1.2
PING 192.168.1.2 (192.168.1.2): 56 data bytes
Request timeout for icmp_seq 0
Request timeout for icmp_seq 1
64 bytes from 192.168.1.2: icmp_seq=0 ttl=64 time=2905.727 ms
64 bytes from 192.168.1.2: icmp_seq=1 ttl=64 time=2281.194 ms
64 bytes from 192.168.1.2: icmp_seq=2 ttl=64 time=1281.819 ms
Request timeout for icmp_seq 5
Request timeout for icmp_seq 6
64 bytes from 192.168.1.2: icmp_seq=4 ttl=64 time=3280.608 ms
Request timeout for icmp_seq 8
64 bytes from 192.168.1.2: icmp_seq=8 ttl=64 time=1544.818 ms
64 bytes from 192.168.1.2: icmp_seq=10 ttl=64 time=995.718 ms
Request timeout for icmp_seq 11
Request timeout for icmp_seq 12
Request timeout for icmp_seq 13
^C
--- 192.168.1.2 ping statistics ---
15 packets transmitted, 6 packets received, 60.0% packet loss
round-trip min/avg/max/stddev = 995.718/2048.314/3280.608/842.310 ms
Imac specs:
Processor 3,1 GHz Intel Core i5
Memory 12 GB 1333 MHz DDR3
Graphics AMD Radeon HD 6970M 1024 MB
Serial Number C02FGBQWDHJQ
Software Mac OS X Lion 10.7.3 (11D50)