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36059
February 15th, 2008 03:00
Dell 1505 802.11n (Draft) Slow network connection speed.
I just received my Latitude D530 laptop with the Dell 1505 802.11n (Draft) miniport card. I set my wireless network up and got connected right away. However with in a few minutes my connection speed dropped from 130mbs to 52 then 30, then to 26, then to 15, then to 5.5...eventually settling at 2mbs. If I reboot the system the connection speed returns to 130mbs for a few minutes and then starts to drop. It takes about 5-10 minutes to drop to 2mbs, but it stays there. I tried to update the driver with no effect. I originally set this computer up on my Netgear wireless G router. all of the other computers run just fine but the Latitude kept dropping its speed down to a crawl. I purchased the Netgear WNR834B N router and the speed still dropped off. Signal strength is excellent. I would appreciate any help.
Thanks,
Ross
m_a_rem
341 Posts
0
February 15th, 2008 16:00
horacelau
2 Posts
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February 16th, 2008 05:00
When I first got my D630, I was actually having bad packet loss. Changing these settings in the driver seems to have fixed that problem:
AP Compatibility Mode : Broader Compatibility
Power Save Mode : Disabled
However, I am still suffering from slow connection speeds. In a 802.11g network, the connection speed will bounce anywhere between 11Mbps to 54Mbps. Most of the time it is sitting between 18Mbps and 36Mbps. I'm not sure if it's because the Broadcom chipset is no good, or if it's a driver/firmware issue. My Thinkpad with Atheros chipset sees a rock steady 54Mbps.
Any suggestions on this issue would be appreciated.
horacelau
2 Posts
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February 16th, 2008 05:00
I should note that I am running driver version 4.170.25.12 dated 9/20/2007 for Windows XP.
m_a_rem
341 Posts
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February 16th, 2008 12:00
rsmi0
5 Posts
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February 16th, 2008 13:00
I talked to Dell Tech support and they Checked the drivers and settings for the drivers. They said it matched what the recommended settings were for the driver. I have played around with the driver settings and have gotten it to stabilize. Running a Netgear -N router and the best sustained speed this computer will get is 39mbs. It does seem to drop down to 11mbs every so often but it seems to bounce back to the 39mbs. Dell wireless tech support was thinking that the card was bad. They are sending me a new card. If that does not work I am going to ask for a refund of the Dell card and ask to upgrade to the Intel chip set card.
Ross
m_a_rem
341 Posts
0
February 16th, 2008 14:00
xyzcb1
4 Posts
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February 24th, 2008 11:00
I am calling dell to return this item.
http://www.dellcommunity.com/supportforums/board/message?board.id=netwkint&thread.id=26941
rsmi0
5 Posts
0
February 24th, 2008 12:00
Dell Sent me a new 1505 card. This card had the same speed issue but the signal strength was very poor. I called Dell wireless support and they sent out another new card and the antenna. The signal strength is great now but I am still getting slow speeds. I am going to return the 1505 card and upgrade to the Intel 4965AGN Wireless-N Mini-card. My Latitude has three leads for the antenna and the 1505 card only has two. The Intel 4965AGN Wireless-N Mini-card will take advantage of the three lead antenna. I think the broadcom chipset in the 1505 card is poor quality, and Dell has absolutely no idea how to make it work.
m_a_rem
341 Posts
0
February 24th, 2008 15:00
Steveareeno
2 Posts
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April 13th, 2008 01:00
I have to agree about this card. I am having the same problems. I am on my third one in a brand new D531. I am 1 foot away and have poor signal quality. It tried everything including bios updates, driver updates, tweaking the card settings and nothing. My lenovo t61p has perfect connection at 20 feet.
I am going to call dell and upgrade to the intel
Maximillian1979
3 Posts
0
May 10th, 2010 23:00
Did any of you ever get the Intel card? Did Dell accept the return and basically just charge you for the difference? Did the Intel card solve the problem? I am having the same problem with my new Dell Studio 1747 laptop and DW WLAN 802.11n mini card, talking to my Buffalo WZR-HP-G300NH router. Can't tell if it's the router or the card, but from what you guys are saying, it sounds like the card. Switching to 802.11g mode on the card, the speeds stay at 54m/s pretty consistently. Leaving it in 802.11n mode, the speeds are all over (down less than 10m/s frequently), and never really above 65m/s. Called Buffalo, and they couldn't really do much without me having another laptop to test. Called Dell, and the idiot I talked to said that since I was connecting, it was a software problem, and referred me to a different number, which turned out to be "non-warranty" (fee/paid) support. I'm very frustrated, and just got the lappy a few days ago. Anyone have a happy ending to this problem to share? Thanks a ton!
-Maximillian
Seattle, WA
varunpurusho
1 Message
0
May 11th, 2010 01:00
Hi Ross,
Try changin the security from WPA to WPA2.
Kindly update if that resolves.
Regards,
Varun
Maximillian1979
3 Posts
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May 11th, 2010 09:00
Just so you know, Varun, I have a similar problem to Ross, and I was using WPA2-PSK, but switched it to no-auth, no-encryption mode, just to see if it made any difference, and it made no difference at all. Still had the stability problems, and still couldn't get a speed above 65m/s.
Maximillian1979
3 Posts
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May 11th, 2010 12:00
I just purchased an Intel 633ANHMW wireless card to replace the DW1501 card that came with my new Studio 1747 laptop, in hopes that the new card won't have the same 802.11n performance and reliability problems. I will report back once I get the Intel card installed to let you all know if it solved the problem, so hopefully some others can benefit from our pain. :emotion-2:
As far as requesting that Dell upgrade the card at the cost of the difference between the two cards, first, the 633ANHWM doesn't appear to be available through Dell. Secondly, the price difference between the DW1501 card and the 533ANHWM which is available is about the same as the 633ANHWM card is itself if you shop around on the net. Third, I have consistently had extremely unhelpful experiences with Dell's Technical Support, and not the best experiences with their Customer Service either, so it's not worth the hassle and time I'd waste taking it up with them to me. Fortunately, Dell still has some of the best value and customizability when it comes to their products, which is why I still buy from them. That's my two cents on that subject.
Report forthcoming. :emotion-5:
Regards,
Maximillian
Seattle, WA
[/quote]bobcurwen
2 Posts
0
May 27th, 2010 11:00
Ive had this card for just over a year now, and its always been stable and fast as far as i was concerned.
However i never acctually tested the speed, i managed to download files as fast as my broadband package could take etc.
I recently bought a nas drive from seagate, the seagate black armor 110. its a great device with media streaming, FTP server, wiki server etc.
I have all my films, music and pictures all on this device but the local speed i get with the dell 1505 is stupid! I dont know the exact speed, but at first it couldnt even stream a song.
I have a dell insiron laptop with a g speed card, and it can stream songs, dvd rips i have just fine. infact it can just about stream 720p films, with abit of lagg now and then.
I got in contact with seagate alot thinking it was something to do with them, as id seen on forums that people had similar issues.
They just said that its my computer and that its my problem which was fair enough as they couldnt do anything seeing as my laptop was fine with it.
I then left it, rebooted the nas drive several time, and it seemed to get faster speeds, almost like it was starting to get along with my card. But still its not the N Speed i was expecting from my gigabit ethernet link from nas drive to router.
My warranty has ran out so im not afraid of taking apart my machine, but do i need a new card, a new chipset or what?
Thanks, Bob.