Joined: 01 Jul 2004
Location: almost Mile High in the USA
|Posted: Fri Nov 16, 2018 8:36 am Post subject: mPCI/Cardbus + WPA2 wifi loses a lot of packets...
|Hardware: Dell Inspiron 600m Pentium-M 1600
This is weird. I cannot get stable WPA2 on my Dell laptop with PCI devices, but unsecure and USB WIFI works fine!
All three of these cards:
MiniPCI IPW2200BG (OEM) - firmware constantly restarts, large packet loss. Using internal antenna.
MiniPCI Atheros AR5xxx 802.11b/g (replace IPW2200BG) - constantly drops packets for minutes at a time. Using same antenna as the IPW2200BG
Cardbus PCMCIA Realtek RTL8180 802.11b in PCMCIA slot - same as Atheros - no warnings in dmesg visible. PCMCIA stub antenna out the side.
Sometimes I can't even associate with each of the three cards.
Again, the three "PCI" cards all work fine for insecure wifi (no WEP or WPA). At least I can use my VPN over insecure wifi and it works perfectly!
However, my RTL8187 USB 802.11b/g wifi works fine for WPA2 on this computer! (and my two other laptops (with onboard PCI/PCIe b/g/n wifi) work fine with this same 802.11b/g access point.)
What gives? I suppose I don't want things sticking out of my laptop so I don't like the PCMCIA or especially the USB solution, but having both the IPW2200BG and AR5xxx fail in such a similar way is quite odd.
It looks like this has something to do with the behavior under interference/signal strength. While I do get 3/4 bars, it still has the problem. Moving the receiver next to the access point allows the cards to work properly.
It's kind of unfortunate that I need to disable WPA in order to use the cards farther away.
Intel Core i7 2700K@ 4.1GHz/HD3000 graphics/8GB DDR3/180GB SSD
What am I supposed watching?