I've been using Fedora on the same notebook (HP8710w) since the release of Fedora 9 without any issues. However, now my WLAN frequently disconnects with the message:
kernel: iwlagn: Microcode SW error detected. Restarting 0x2000000. I'm using the 18.104.22.168-191.fc11x86_64 kernel. I experienced no problems under Fedora 9 or 10 with the WLAN - it was very reliable. My WLAN adapter is the Intel 4965AGN, which I use in conjunction with an Edimax router.
wlan0 Link encap:Ethernet HWaddr 00:21:5C:2F:1A:E5
inet addr:192.168.2.101 Bcast:192.168.2.255 Mask:255.255.255.0
inet6 addr: fe80::221:5cff:fe2f:1ae5/64 Scope:Link
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:3900921 errors:0 dropped:0 overruns:0 frame:0
TX packets:3159053 errors:0 dropped:0 overruns:0 carrier:0
RX bytes:3857657556 (3.5 GiB) TX bytes:739452534 (705.1 MiB)
wlan0 IEEE 802.11abgn ESSID:"XXXXX"
Mode:Managed Frequency:2.447 GHz Access Point: 00:1F:1F:1D:04:70
Bit Rate=60 Mb/s Tx-Power=15 dBm
Retry min limit:7 RTS thr:off Fragment thr=2352 B
Link Quality=100/100 Signal level:-38 dBm Noise level=-90 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
Any suggestions for what might be the problem here? Sometimes I can get three or four disconnects in one hour, other times it might be fine for an entire afternoon. There does not appear to be a "trigger" mechanism. Thanks in advance for any help or suggestions.