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Need to buy 25 pci nics for pc, recomendation please

Ernesto
Ernesto asked
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Last Modified: 2013-12-27
I need to buy 25 pci nics for my wireless clients
what i need to ask for in order to have the better performance against an "Access Point 3Com Wireless LAN Access Point 8750"

thank you a lot
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Commented:
Since that is a Wireless-G router, your best bet is to stick with G cards.  "Super G" offers far greater noise immunity and is less susceptible to interference.  I like D-Link's products because they don't insist on installing a manager package so you can use Windows built-in wireless.
Here is a nice card for $15 http://www.digitalet.com/Items/NWL-WDA-2320-NOCD
Bud DurlandDirector of IT
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Commented:
In our manufacturing plant, we've had good luck with both NetGear and TrendNet equipment

Commented:
Generally speaking I like the Linksys stuff, but can be pricey. For the money I would recommend Netgear as mentioned above.
jostafewSystems Administrator
Commented:
I'll only comment on my experience with these three wireless G PCI cards:

Linksys WMP54G Ver 4.1
Linksys WMA200 Ver 1.0
D-link WDA-2320 Ver A2 (I believe they are all A2)

All NICs were used in Win XP Pro x86 machines and paired with Cisco AIR-1242 WAPs.

We started with the WMA200's which were originally used with the matching WAP200, and while performance was good I didn't like the fact that the NICs wouldn't run properly without their bundled software. I could have lived with that except that it somehow broke the log-out, restart, shut-down process (you get one, after that those functions are non-responsive until you stop the service or physically power off the machine).

I then grabbed some innexpensive WMP54G's to try out and had mixed success with. They ran well but on the Linksys drivers they would all exibit a brief interruption of data flow, about 2-3 seconds a few times / hour. I did some homework and found the chipset that this particular HW ver. uses and downloaded drivers directly from Ralink. Ping times increased but the periodic pause was nearly eliminated. Performance was fine either way.

I've had the best success with the D-Link WDA-2320. Any new wireless client I put into service gets one of these cards and I'm slowly phasing out the other cards. These are getting harder to find now though. We run a mainframe client on these wireless machines which is very picky about having a stable connection as minor interruptions will drop the sesssion. While still not as completely solid as a copper connection they perform pretty well; we get a dropped session on a copper line maybe once a week where we might see 2-3 drops per week on the wireless clients. We are working to improve the reliability of the wireless networks but that is the current state.

Good luck, I will be tagging along to see what other recommendations come up.

Author

Commented:
Thank you guys
whats the diference between had a 54mbps against 108mbps , i know is the performance, but is ok select  108mbps speed  new cards? The wireless access point that im selected is going to support them?
thanks a lot
jostafewSystems Administrator
Commented:
Usually the 108mbps stuff is proprietary to the brand, so if you have a D-link NIC with a Linksys WAP they may not operate at 108mbps and will drop down to 802.11g at 54mbps that they can both understand.

Author

Commented:
Ok, but the nic is still working i mean, i do not want to buy some cards that arent compatible with my access point, that can occur or not?
thanks a lot
jostafewSystems Administrator
Commented:
If the NIC and WAP don't agree on the 108mbps speed they should still work at standard speeds, yes. I have heard stories about a particular make/model NIC not communicating with a certain WAP but this has been in the realm of consumer level equipment and I have not personally come across that. I have dealt with flaky USB wireless adapters that perform poorly and/or overheat, but never completely incompatible.

With any project where you're dropping $$$ on larger numbers of the same make & model equipment it's always good advice to get your hands on one or two of the devices in question and do some testing with it before dropping the PO for the rest of them.

Author

Commented:
oh, man so good advice,
so then i need to explore to 3com NIC so made compatible with mi AP?
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Commented:
3Com bought Linksys; but, wireless G adapters are obsolete and most manufacturers have ceased production.  Ironically; though, I often see poor performance when connecting a G wireless device to an N router or vice versa.  The reason I suggested the WDA-2320 was due to the fact that the "Super G" chips have much better noise immunity and are far less likely to lose their connection due to interference.
You will only connect to the access point at 54mbps as that is the fastest it supports.
I don't know if the first link I posted for the WDA-2320's @ $15 has 25 in stock; but, would heartilly suggest that you jump on them as the next price was $40...

Author

Commented:
whats your opinion about the AP im pretending to purchase.
Access Point 3Com Wireless LAN Access Point 8750"

thanks
jostafewSystems Administrator

Commented:
@DavisMcCarn, you're $15 is a good price! I just picked up 3 to have spares on hand hahah

Author

Commented:
Thank you all guys

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