300Mb/s on Z21's WiFi Link 5100 ?

I have a Z21 and am wondering if anyone has had any problems getting the 5100 in it to negotiate 300Mb/s with an N access point ?

I have an Apple Airport Extreme (N) and have the 'wide band' enabled. I have a Linksys WEC600N which does negotiate 300Mb/s (on 5GHz) to the Airport Extreme on the same laptop.

The best place I have seen the negotiated rate is in Task Manager / Networking.

Whats odd about the 5100 is that it inititally does link at 300 but then immediatly drops to 150. I realise wifi links are continuously renegotiating the link speed, but I have watched the Linksys card, and that drops to 270 220 etc.

I have tried the 12.1.2.1 drivers for the 5100, which appear to be the latest. There doesnt appear to be anything obvious in the driver/advanced tab.

Anyone have any experience of this ?

 

i think the 5100's max speed is 150. the 5300 is the one that has max speed of 300

 

Hi.

I thought the 5100 was 300 and the 5300 is 450

http://www.intel.com/network/connectivity/products/wireless/adapters/5000/index.htm

Regards

John.

 

Likewise, identical experience here. initially for like 5-6 seconds it reports the connection at 300mbps, then drops to 150, spikes for 1 sec to 300 during identification, and then remains at 150 no matter what i do it seems.

i'm in vista home prem x64, gateway p-7811fx, wifi link 5100, on dlink dir-655 broadcasting 2.4ghz, 40mhz band.
the dlink router status reports consistent 300mbps, however the nic adapter sticks to 150mbps. pretty annoying. i know its really about throughput, but still, they both should be able to handle 300mbps easily.

I think its a driver issue, because it wasn't long ago, with the previous driver version, that i was getting consistent blue screens from the nic driver service.
i haven't seen it since.

 

Hi I just got TT 190 1.4 Mhz/64x2 Raid/3 Ram

This computer has Intel wifi 5100 and the connection is between 5 Mbps to 15 Mbps 15 feet from my router (Belkin N1 Vision). If I put the computer just 2 feet from the router the speed increase to 90 Mbps to 140 Mbps. I also have a TZ 180 NR and reach 144 Mbps all around my home (My PS3, Itouch and G1 phone reach 54 Mbps). I called sony support and I went 2 hours trough 3 levels of technicians, they said is kind of normal but I don't think so I had had 5 vaio computers and this is the slowest connection I seen. No new drivers from intel and if you try to re-install the drivers trough partition is not working ether

It is because the TZ has the 4965 card with 3 antenna and the TT has a 5100 card which only has 2 antenna. Get a 5300 card or a third antenna for better performance.

See here for a comparison:
http://www.anandtech.com/cpuchipsets...spx?i=3356&p=6
http://support.intel.com/network/con...5000/index.htm

Intel 5100 is a piece of junk we should try to replace foe 5300

 

Is it possible to replace the 5100 of the TT/Z with the 5300?

 

where are the instructions to replace the wifi? I got the Atheros card for my baby !!!

 

any news on the 5100 change for 5300 on Z - i too face the same issues like you guys, no way to get 300mbps, always drop down to 150.

any ideas?

 

I dislike this search button ...

The 5100 is 2 antenna adapter, while the 5300 is a 3 antenna. Drop your Bluetooth if you are not using it or force the Wireless N to use 5Ghz range and you will be good. I am always connected @ 270Mbps to my linksys with both my 5100 and a pretty decent range.

 

thx for the reply, can you be a little more precise about forcing the wireless N - is it on the 5100 or on my router?

 

both.

You need the wide range on the 5Ghz if linksys or dlink router. Intels are picky about the bandwidth, although if you force it to be on 5Ghz and 40hz wide range, then you will pick up 270 at a minimum with linksys or 300 with d-link. It will also be stable, since it wont interfere with BT and your microwave or your wireless phone or iphone or any other piece of junk sitting around and bouncing on the same frequency!

 

yes that sound plausible; i have a ZyXel NBG460N 300mbps router set to:
WPA2-PSK
wps
802.11b/g/n (cannot set only N)
channel: auto
frequecncy: auto 20/40 mhz

on 5100 agn:
802.11n: on
802.11n 2,4: auto
802.11n 5,2: auto

what do you think of this?

each time i switch between the modes b/g/a the connection jumps to 300, but after a second it gets back to 150 whatever i do - i seem not be able to force either my router nor the 5100 to work only on N.

any ideas what to do?

EDIT: i have acteally managed to switch the 5100 to only 5ghz, in which case the connection drops immediately and i cannot connect until i change to mixed mode 4,2 and 5,2, hmmmmm

 

not sure about the zyxel router.

but since the N is still draft, every manufacturer is doing whatever they feel is appropriate.

here is what I've done on my WRT600N

Set the channel to wide
Set the wireless to A/N
Set range to 5Ghz

Set WPA algorytm to AES and security mode WPA2-PSK

that's the only way i can get more than 130mbps on my WRT600

On the card itself, tell it to go 5Ghz only with A/N.

FYI: You cannot have 5Ghz and B/G/N. It is using the 2.4Ghz for that compatibility.

Play with it a bit more. The intel cards are awesome if you know how to handle them. Everyone here seems to go another direction instead of curing the disease