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No wifi at win 8.1 pro after upgrade from win 7

win8.1 wifi 3com wireless adapter

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#1 amrgiddens

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Posted 17 December 2013 - 11:12

I have 3Com 3CRDAG675B Wireless LAN PCI Adapter that I install it and work fine on dell 755 that preinstall windows 7 64 bit. 
after I upgraded to windows 8.1 that problem issues No Wifi connections and No connection unavailable :(
 
windows tell this wireless card is not  compatibility with win 8.1  yet !! 
 
I search on the web to fix it, I can't solve it right now.
 
are anybody can  help me plz ?



#2 +BudMan

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Posted 17 December 2013 - 12:37

"windows tell this wireless card is not compatibility with win 8.1 yet !! "

Well then why did you upgrade to 8? At a loss?

Your Solution = Go back to windows 7, where your card is supported. Get another card that is supported under windows 8(8.1)

That is a REALLY OLD card anyway.. How about something like this

http://www.newegg.co...N82E16833704031
TP-LINK TL-WN951N Wireless N300 Advanced PCI Adapter, 300Mbps, w/WPS Button, IEEE 802.1b/g/n, WEP/WPA/WPA2

300Mbps Advanced PCI Adapter
Better performance with three antennas
Stronger signal with MIMO technology
Advanced Security-WPA / WPA2
Plug & Play for Windows 8

Here is a little bit cheaper one, also windows 8 support
http://www.newegg.co...N82E16833704079
TP-LINK TL-WN751ND Wireless N150 PCI Adapter, 150Mbps, IEEE 802.11b/g/n, WEP, WPA/WPA2

#3 +riahc3

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Posted 17 December 2013 - 12:46

Hello,

Like Budman said, not only is that card not compatible with Windows 8.1, but 3Com doesnt exist anymore so I doubt you will get a driver update that works.

Im actually having a hard time finding any decent PCI wireless card. USB a option?

#4 +BudMan

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Posted 17 December 2013 - 12:51

Its a Desktop - why is Wire not an option? ;) Both of the cards I linked to got decent reviews.. I would think either of those should work riahc3?

#5 Dot Matrix

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Posted 17 December 2013 - 12:57

Before going through the trouble of downgrading, is there  a way to get the Win7 driver working on Win8?



#6 Studio384

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Posted 17 December 2013 - 13:04

Good chance that the Windows 7 driver just work on Windows 8.1, I've got here a Windows Vista, 7 and 8 machine, and all they are now all running Windows 8.1 with their original drivers and work great!



#7 +BudMan

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Posted 17 December 2013 - 13:09

Its a POS card from like 2005, even if the windows 7 driver works.. It is G only, OP - is your wireless network only G? If so then sure you could try that, curious why the upgrade process just didn't keep the driver that was working then?

#8 Dot Matrix

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Posted 17 December 2013 - 13:10

Yikes, G only? :s If it's a desktop, time to find a new card!



#9 +BudMan

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Posted 17 December 2013 - 13:31

The whole desktop is prob due for replacement, Think 755 was circa 2008 if not mistaken.. Even with some updates its got to be horrific on 8 I would think..

Maybe he got one of the last ones off the line or something with a bit more umph? Maybe its just me, 3 years is about the life of a PC at most, even with upgrades along way. I bought myself some time on my old dell XPS 8300 (2011) with SSD, bumped to 12GB and newer graphics, usb 3 card. Not all at once, memory was first, then say 6+ months ago graphics HD 7700 with 2GB, on the cheap $100 and most recent the SSD, prices have dropped and the 840 Pro's were just getting all kinds of great write ups.. The SSD was the biggest improvement - should get me through 2014 I would think. Just couple weeks ago got a usb 3 card for it.. It was like watching paint dry moving anything via usb..

5 year old box I am guessing - its about time for update I think! Did you ask Santa? ;)

#10 +riahc3

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Posted 23 December 2013 - 13:15

Hello,

TP-LINK TL-WN951N Wireless N300 Advanced PCI Adapter, 300Mbps, w/WPS Button, IEEE 802.1b/g/n, WEP/WPA/WPA2

TP-LINK TL-WN951N V3 has drivers released on 6/20/2013 compatible with Windows 8 (note, not Windows 8.1, there have been a couple of hardware that are compatible with 8 but not 8.1. You should be OK though)

TP-LINK TL-WN751ND Wireless N150 PCI Adapter, 150Mbps, IEEE 802.11b/g/n, WEP, WPA/WPA2

On the TP-LINK site, there are no drivers for this card for Windows 8/8.1 Last driver download was released on 11/22/2012

Id go for a USB 802.11n adapter IMO...



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