D-Link Forums
The Graveyard - Products No Longer Supported => Routers / COVR => DIR-825 => Topic started by: weymouthba on February 10, 2010, 01:13:09 PM
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Rev B, 2.02NA
I recently upgraded to an 825 from a 625. The 2.4GHz channel allows me to select and save 20/40 MHz Auto, but the 5GHz stays on 20MHz. I can select the option but it will not take when I attempt to save the settings. When I view the status page the channel width is set to auto. Anyone else have this issue? Is the 5GHz band really set to 40MHz and I just can't see it?
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whats the bandwidth show within 10 feet of the router using 5GHz N? 150Mbps = 20MHz / 300Mbps = 40MHz but only if your wireless client is a 2Tx/2Rx(dual stream), if not best you will see at 40MHz is 150Mbps(single stream client). If it is truly an dual stream client and highest bandwidth is 150Mbps then it is only operating at 20MHz.
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I'm getting 150+ speeds (160, 240, 270, 300mbps) going by my client (laptop). However the wireless status screen is really wacky...on some of the wireless clients it will not show the IP address and it lists the connection speed well low of what the adapter is telling me. The signal is very low as well. Judging by my adapter the signal is good.
Also when I try to reserve DHCP addresses sometimes it takes them and sometimes it doesn't. In addition it reports that a DHCP lease will expire in 1935? My 625 was not as buggy as this.
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5GHz range is like half that of 2.4GHz, use it only for devices within like 25-35ft(even less using 40MHz), the further away the lower the speed, anything further use 2.4GHz.
reserved IPs must not exist in the DHCP pool
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My 5GHz client is very close, 20ft max. Everything else uses 2.4GHz. The first pic shows the DHCP reservations. As you can see IP 192.168.0.103 is already reserved but shows up under Dynamic Clients? With an expiration of 1935?
Here are the pics:
(http://i677.photobucket.com/albums/vv139/weymouthba/dhcp.png)
(http://i677.photobucket.com/albums/vv139/weymouthba/wirelessweird.png)
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those IPs in the reservation list are part of the DHCP pool, they cannot be because they are static. Make sure they are in the ranges 192.168.0.2 - 192.168.0.99 and 192.168.0.200 - 192.168.0.254 test before you speak lol - if you have an static IP manually assigned via the client OS, that IP must be outside the DHCP pool.
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I did not set up my IPs as static, I just saved them so I could give them names instead of UNKNOWN and wouldn't have to worry about reservation times. Why the heck does it give me a date of 1935 for expiration though?
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you're missing the point, A DHCP RESERVATION IS: a static IP assigned by DHCP. Thus, all IPs within that list must exist outside of the DHCP pool. sry for the confusion
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I tried to set the IP out of the range and I got an error that says the IP should be within the configured IP range, which I assume is the 192.168.0.100 - 192.168.0.199.
On a side note, is there a program I can get that will tell me the true connection of my wireless clients? Windows based?
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hmm, dhcp reservation shouldn't function this way, however there are many differences between brands/grades of network equipment, this must be one of them.
true connection?
something to show what devices are on the network? http://www.purenetworks.com/product/pro.php - comes on the CD with your router. there is a free version 4.9 I think. http://www.purenetworks.com/download49/ (http://www.purenetworks.com/download49/)
inSSIDer might help you as well, similar to netstumbler, but can run without turning off Wireless Zero Config(losing connection) http://www.metageek.net/products/inssider
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Yes, in other words something to replace the buggy wireless status page of the Router.
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Don't worry, as long as you set it to Auto 20/40, it will stay at that, my computer does report 270mbps, where as if i swapped it back to 20mhz id only get 130mbps. This happens for both the 2.4 and 5ghz channels. Simply a programming error.
Though I never seem to get that elusive 300mbps... Hopefully in the next firmware update they let you set 40mhz, not auto 20/40.
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whats the bandwidth show within 10 feet of the router using 5GHz N? 150Mbps = 20MHz / 300Mbps = 40MHz but only if your wireless client is a 2Tx/2Rx(dual stream), if not best you will see at 40MHz is 150Mbps(single stream client). If it is truly an dual stream client and highest bandwidth is 150Mbps then it is only operating at 20MHz.
not sure what you are trying to say, but I have a single band Wireless N adapter on my laptop and desktop computer and I get 300 Mbps quite often on both of those machines.
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My 5GHz client is very close, 20ft max. Everything else uses 2.4GHz. The first pic shows the DHCP reservations. As you can see IP 192.168.0.103 is already reserved but shows up under Dynamic Clients? With an expiration of 1935?
Here are the pics:
(http://i677.photobucket.com/albums/vv139/weymouthba/dhcp.png)
(http://i677.photobucket.com/albums/vv139/weymouthba/wirelessweird.png)
I don't know if you undertand how to do Static IP addresses, or Reservations.
You woulo set your router to start DHCP at 192.168.0.100 to 192.168.0.199, for example
You would then assign all of your static IP addresss below that, from 192.168.0.2 to 192.168.0.99
It's not a good practice to assign an IP address that's available to be assigned thru DHCP. It could cause network problems if you have two computers assigned the same IP address, one static, and one DHCP
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I tried to set the IP out of the range and I got an error that says the IP should be within the configured IP range, which I assume is the 192.168.0.100 - 192.168.0.199.
On a side note, is there a program I can get that will tell me the true connection of my wireless clients? Windows based?
oops, sorry, I just saw this post. Look at your router's setup and see where it starts issuing DHCP from. The range you listed above is fairly normal, but maybe your router isn't setup that way, especially if it won't let you set an IP address. If you wanted to assign an address not in the above range, try 192.168.0.2 to 192.168.0.99. Remember, the router itself will be 192.168.0.1
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not sure what you are trying to say, but I have a single band Wireless N adapter on my laptop and desktop computer and I get 300 Mbps quite often on both of those machines.
whats the bandwidth show within 10 feet of the router using 5GHz N? 150Mbps = 20MHz / 300Mbps = 40MHz but only if your wireless client is a 2Tx/2Rx(dual stream), if not best you will see at 40MHz is 150Mbps(single stream client). If it is truly an dual stream client and highest bandwidth is 150Mbps then it is only operating at 20MHz.
lol single stream...theres a difference, half the bandwidth difference.
your confusion with dual/single band and dual/single stream: dual band clients(2.4 and 5GHz) cannot use both bands simultaneously, some routers support simultaneous use of both bands, but not clients. dual stream is the use of two or more radio antennas called MIMO to increase performance usually by double, a single stream is like the old original wireless A,B,G with one antenna (54,11,54Mbps) speeds and now wireless N (75Mbps), adding in the second antenna using MIMO can double A,B,G, and N(2.4 or 5GHz) speeds (108,22,108,150Mbps). MIMO was around before wireless N if you didn't already know. both router and client must use MIMO for it to function.
with wireless N we also get channel bonding, all wireless A,B,G uses is 20MHz, wireless N uses 20MHz and can also bond another 20MHz together to make 40MHz, using that 40MHz wide channel we can double the performance once more above MIMO or single stream. dual stream MIMO 40MHz gives us 150 + 150Mbps for each 20MHz channel equaling 300Mbps. single stream 40MHz gives us 75 + 75 for each 20MHz equaling 150Mbps.
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My range is set to 192.168.0.100 - 199. I have tried to set the IP to something like 192.168.0.2 etc but I keep getting the same error.
Everything works great but it's just annoying to me that on my 625 I was able to do this without any problems. It just seems that there are a ton of bugs; between the 1935 date of expiration for DHCP, the 5GHz 20/40MHz is set but it doesn't say it's set, won't let me correctly reserve IPs...