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Broadband modem-router makes the LAN slow?

By chuckman78 ·
Good day.

I am trying to figure out something and I hope anyone could help me with this issue:

My home network is configured this way:

1.- Internet access provided through an AXESSTEL D800 1xEV-DO fixed wireless modem-router (extremely awfull performer I haven't been able to disable as a router but only "broadband" solution available in my area) connected using its 10 Mbps ethernet port to one of the four 10/100/1000 Mbps ports of a

2.- D-LINK DIR-655 draft-n wireless router configured as an access point (DHCP part is done in the AXESSTEL).

3.- Desktop nic (10/100 Mbps) wired to port 2 of the DIR-655.

4.- PS3 (wireless G) linked to the wifi network (with WPA2-ASK enc) provided from the DIR-655.

I know that the maximum -optimum, dreamed- speed for the wireless part of the network is constrained to the PS3 adapter to theoretically 54 Mbit/s (being 19 Mbps a more tipical and realistic figure).

To make things worst I think that because of the 10 Mbps port of the AXESSTEL the whole LAN -wired/wireless- gets limited to 10 Mbps, am I right?

So, if this line of thinking is right, I could just simply unplug the AXESTELL, enable DHCP in the DIR-655 and gain speed (limited to wireless G), right?

If that is true then I would loose internet acces, so how can I connect the modem-router to have internet access but not making the things slower? Is a 2 desktop NIC adapters a solution? How?

I know these are plenty of quetions and I thank in advance to anyone that could shed some light over this annoying issues :)

Regards,

*Carlos Marcano*
-Guri, Venezuela-

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Well for starters you are wrong

by HAL 9000 Moderator In reply to Broadband modem-router ma ...

Typically all Fixed Wireless devices have an output speed of 10 MBS where they interface to other devices like Hubs which may be considerably faster. Though this should be getting plugged into the Uplink Port of the WiFi Router not a LAN Port if you have one.

The 10 MBS is only the speed that the slower Wireless Modem can speak to the remainder of the network and should only be slowing the system down if you have set the remainder of the system to this speed though even a Gigabit LAN Speed is only usable between different computers wired in place. If you want to have faster speeds between the Wired and Wireless LAN's I think you'll find you are out of luck as the WiFi is the Limiting factor here not the Internet Connection though by it's very nature the Internet Connection has to be slow. You can not realize better speeds to the Internet than what the Modem can connect to the Internet with and you can not exceed the Transfer Rates between the Modem and your Router when connected to the Internet. Even if you where Hardwired into a High Speed Cable Connection your limiting speed here is the speed of the Cable Connection. Typically rated as 20 MBS and realistically capable of actual download speeds up to maybe 1 MBS on the Ideal Connection slower for others as well. Of course when you split the Internet Connection between 2 or more computers this is going to slow the process down even more.

From the Hardware Makers prospective it's pointless and a waste of money making a connection between this type of Modem and a Network faster than the Best Possible speed obtainable from the Modem making an outside connection. Even if this was a All In One Unit the interface between the Modem and the Router would still be the same speed the listed 10 MBS and the actual speed is considerably slower than this with the extra bandwidth used to send Packets to recover any lost packets, and the Enabling protocols to allow the Modem to connect to the Wireless Network as well as whatever else the ISP/Telco or whoever requires. If you stop paying the Bill the Internet connection gets pulled by withdrawing the right for the Modem Identification Signal and Protocols to access the ISP's Servers and this is done on their side of the Wireless connection not yours so you need to understand that there is a Lot of Data sent to the ISP and back that is just not used to download anything but it is using part of the available Bandwidth.

If you want to speed up the WiFi part of the LAN your only option is to stop any Security in use as that is what is eating up more than 50% of the possible Bandwidth in use on the Wireless part of your Internal LAN. Though if you do this it could allow others to steal your Bandwidth and you would appear to be no better off as the same amount of Traffic would still be passing over the WiFi Section of the LAN but as it is now going to a unknown number it may even be slower. The stronger the Encryption Protocols on WiFi the slower are the actual Data Transfer speeds so if you have WPA2 just switching back to WPA will realize a Increase in Data Speed and so on down the Security Chain till it is eventually turned off completely and everyone has free access to it to do as they please. :)

Col

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I have some comments...

by chuckman78 In reply to Well for starters you are ...

Col wrote:

"Typically all Fixed Wireless devices have an output speed of 10 MBS where they interface to other devices like Hubs which may be considerably faster. Though this should be getting plugged into the Uplink Port of the WiFi Router not a LAN Port if you have one."

That is a little of a problem for me. I can not connect the modem-router to the Uplink Port so I ended up with it connected to one of the four 10/100/1000 Mbps ports of the DIR-655 wireless router.

"If you want to have faster speeds between the Wired and Wireless LAN's I think you'll find you are out of luck as the WiFi is the Limiting factor here..."

I realize this. I know I won't get Gigabit over wireless, I just want to use around 25-30 MBS for the wireless G adapter of a PS3. Theoretically G is rated to 54 MBs but I know it is unreallistic to achieve that speed, so I am expecting a 50-55 % out of it.

"...not the Internet Connection though by it's very nature the Internet Connection has to be slow. You can not realize better speeds to the Internet than what the Modem can connect to the Internet with and you can not exceed the Transfer Rates between the Modem and your Router when connected to the Internet. Even if you where Hardwired into a High Speed Cable Connection your limiting speed here is the speed of the Cable Connection."

Noted. I am not expecting more than 10 MBps speed for Internet acces (in fact I get pretty low downloading and uploading speeds, my type of connection -1xevdo cdma- is the real bottleneck here, not the 10 MBps link).

My real concern is the interconection between the computers (LAN of via wireless) not the internet speed (or lack of it ).

I would like to achieve speeds of around 25 Mps to stream multimedia content from my desktop (wired to one of the gigabit ports of the DIR-655 to the PS3 via the wireless G.

Just to point out, I have realized that wireless isnt the best option for doing muimedia streaming, I am strongly considering wiring from the DIR-655 router to the PS? gigabit port. I am just trying to exhaust all the possibilities with wifi and also want to be sure that the wired config will work. I dont know, but I think I read somewhere that because of the way I am connecting the modem-router to the DIR-655 wireless router (to one of the gigabit ports and not to the uplink port, reducing the DIR-655 to an Access Point) I am pulling all of the lan ports to the 10 Mbs max speed of the modem-router's port, hence, limiting the transfers to wifi to this speed too. Am I too wrong? :)

"If you want to speed up the WiFi part of the LAN your only option is to stop any Security in use as that is what is eating up more than 50% of the possible Bandwidth in use on the Wireless part of your Internal LAN"

I think that the PS3 cant use WEP so WPA and WPA2 are my options. I am going to check this out and will try WEP instead. I wouldnt like to not use any security, too many vultures around :)

Thanks a lot Col for the time you have spent helping me with this issue!

Regards,

Carlos.

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