Posted: Wed May 06, 2009 21:38 Post subject: WiFi limited to 3Mbit
I recently upgraded my internet service to ~6Mbit, but cannot see bandwidth exceed 3Mbit when using 802.11g wireless with my wrt54g router. Location does not affect this, I have reasonable signal but even ~10 ft away from the router with no obstruction I see the same effect. When I use an ethernet cable directly to the router, I see the higher speeds (~6Mbit) which I test with speedtest.net to a server in my city (Portland, OR). I've tried a couple different channel settings as well.
I've recently flashed the router to a new version of dd-wrt, I think it was V24-SP1 stable, but will check on exact model if this matters. This didn't change anything.
Do I need to buy a new router, or is this some kind of configuration problem I can solve?
Background:
I'm using a Linksys wrt54G v8 with mostly default settings and dd-wrt. I'm using the latest stable release as of a couple weeks ago. I think this was V24-SP1 but will check. Previously, I experienced the same problem with a version from 2007 too.
I'm using WPA2 Personal encryption, but turning this off doesn't affect the speed.
I tried using different wireless managers on my laptop, Intel vs Windows to no effect.
I tried searching for help on this topic on this site and others, but using "bandwidth limit" as a search term doesn't work well because this is how people ask for QOS. The FAQ didn't seem to have anything either.
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Posted: Wed May 06, 2009 22:14 Post subject: Thanks. I'll try that.
Thanks for the links. I didn't know V24-SP1 was so bad. I'll try the hard-reset, and maybe a newer firmware and see if that has any effect. Perhaps I didn't do the reset correctly when I installed, although I found a page with instructions somewhere on this site which I don't recall had such an authoritative reset step.
Joined: 29 Mar 2009 Posts: 157 Location: Peterborough, ON
Posted: Wed May 06, 2009 23:31 Post subject:
the v8 unit specs might have an impact, but as I noted in another thread, I am getting 10Mbps+ inbound on wireless-G via my WRT600Ns in WDS ... results from www.speedtest.net
I flashed 30-30-30 before, and after, with the appropriate waits inbetween. I see identical performance with my wireless after the change, ~2.5Mbit from speedtest.net. If I plug ethernet into my router I see ~5Mbit, still.
I'll try flashing with the same firmware again, just to make sure I got everything clear before/after just in case. (All the exclamation marks in the forums..)
(I selected the Eko, but should I try the brainslayer version?)
(Would using a mini version instead help? How do I tell how much flash it has?)
Is there some other setting I could play with? I upgraded the driver Intel PROSet and driver for my wireless card on my laptop too but that also had no effect. Could there be some hidden setting there that also has the problem? It's an intel Wifi Link 4965AGN.
Posted: Wed May 13, 2009 4:36 Post subject: Wireless still limits me to 3Mbit..
I've tried the version Shawn360 mentioned, flashing correctly. Now I get 3Mb, a slight improvement from 2.5Mbit, but definitely not 5 like I do on Ethernet.
I did a channel-scan, using speedtest.net for bandwidth tests for all channels 1-12. Most are ok, 4, 10,11 being the best but a couple are clearly bad, so I don't think channel is a factor in my tests.
Try a wireless lan to lan transfer and check that speed _________________ SIG:
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Try a wireless lan to lan transfer and check that speed
Sorry to be a newb, I'm not sure how to set up that test.
Years ago I had some kind of dos application that would push a specified filesize to another location and time it, but I'd have to set up some kind of filesharing between the two wireless clients and trust whatever sharing system wasn't restricting speed? I'm on Windoze here..
Plug a computer into the router, and then with the wireless computer, transfer a large file. Either time it and figure out the speed based on size or check the transfer speed with a reliable program....or watch the speed in the dd-wrt graphs. _________________ SIG:
I'm trying to teach you to fish, not give you a fish. If you just want a fish, wait for a fisherman who hands them out. I'm more of a fishing instructor.
LOM: "If you show that you have not bothered to read the forum announcements or to follow the advices in them then the level of help available for you will drop substantially, also known as Murrkf's law.."
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