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[schmieg]

I recently switched out my old Linksys WRT54GS for a DIR-655, Rev B with firmware 2.00NA. The primary unit is connected through a gigabit adapter. The network consists of two wired computers at gigabit speed, two laptops with N-Adapters and a remote Desktop unit with a G adapter. Everything connects fine and transfers are solid, but I have a small issue with the two laptops.

One is an old Dell Inspiron 8000 running XP with a TrendNet TEW-621PC PC card. The other is a Lenovo T61 with an Inel4965AGN card. The issue is the same for both. When the computer boots and connects to the D-Link, the indicated speed is 130 on both. Subsequently, if the D-Link is reset, either manually or through a change in the settings, the speed jumps to 270. On the initial connect, neither computer recognizes the secondary channel and both indicate a 20mhz connect. After the D-Link is reset, both recognize the secondary channel and both indicate a 20/40mhz connection. I've played with settings on the adapters and on the D-Link, but nothing has changed the result.

Does anyone have any suggestion as to how I can get a good connection when just connecting to the network? I've looked through the FAQ's and done a search here, but I couldn't find anything that seems relevant to this particular problem. D-Link has not replied to my support request and it's now ten days since I submitted it.

Thanks.

[Gears]

Try upgrading you firmware to 1.33NA that should fix the Speed problem up to 300mbps, DO NOT UPGRADE to 1.34NA that makes more problems then it fix's. 

[schmieg]

I have the newest router which has the 2.00NA firmware. It won't take the older versions.

[Breman]

Firmware 1.x is only for rev A model devices. 2.x is only for Rev B model devices.

[Breman]

This is normal operation for the router. The router evaluates the environmental conditions and determines the optimal settings. When you reset the router you force it to re-evaluate the environment, by default it will pick up both 20/40 but then drops 40 when it realizes there is an issue with that it can go narrow band and then makes spaces the channels 20MHz apart rather than broadband at 40MHz.

[schmieg]

This is normal operation for the router. The router evaluates the environmental conditions and determines the optimal settings. When you reset the router you force it to re-evaluate the environment, by default it will pick up both 20/40 but then drops 40 when it realizes there is an issue with that it can go narrow band and then makes spaces the channels 20MHz apart rather than broadband at 40MHz.

So, basically, I can't have the computer wake itself up and logon to the network automatically at high speed. Not the answer I wanted, but an answer. Thanks.

[davevt31]

The changing from 40 to 20 MHz is part of the IEEE "Wireless N" specs.  Its due to the fact the spec include a "Good Neighbor" policy. 

[schmieg]

Thought I would bring this up to date. I don't know what happened, but recently, the wireless N connections started connecting at 270 and have continued ever since. There were no configuration changes made, but it was almost as if either the router or the adapters learned what they were supposed to be doing. I'm not complaining though.