Posted: Thu Jan 20, 2011 18:24 Post subject: Dlink DIR-825 slow over WIRED ethernet - POSSIBLE SOLUTION
I am running DD-WRT v24-sp2 (08/07/10) std - build 14896 on a Dlink DIR-825, in gateway mode.
I have both wireless radios enabled, but I turned all the clients off (and verified) to troubleshoot this problem.
Essentially, I noticed slow download speeds this morning, here's what I can tell you (I have been testing with both a window7 laptop and a windows7 desktop).
-I hooked my laptop up to the modem, bypassing the router and I get 20Mb speeds.
-I connect through the router via WiFi on my laptop and I get 20Mb speeds.
-I removed ALL other ethernet clients (both wired and wifi) and connected my desktop through the router and I get 2-3Mbit connection.
-I did the same for my laptop (wired, through the router) and I get 2-3Mb connection.
Is it possible that there is something wrong with the router's wired ethernet switch? What can I do about this?
Thank you in advance!
Last edited by ultralame on Wed Mar 23, 2011 6:58; edited 1 time in total
Also, I just transferred a large file between the two computers, through the Dlink, over a wired connection and got ~100Mb connection (limit of the laptop ethernet port).
So the issue appears to be only when downloading from the internet through the wired port of the router.
And just to stem any questions, I didn't do any advanced configuration to the firmware, just enabled wireless (DHCP and DNS are performed elsewhere) and set up the internet connection.
It's possible that something is set incorrectly, but I had not changed any settings in weeks, and only noticed this issue today (saw decent download speeds 24 hours ago).
Posted: Fri Feb 11, 2011 20:16 Post subject: Slow wired WAN Downloads
I see the same behavior on my DIR-825.
I have tried the 15962 build as well with the same slowness downloading from the WAN to a wired LAN port. I get no faster than perhaps 2Mbps download speeds.
RMA the router. Its defective. (had the same issue)
Thanks but I don't think the router has a hardware problem. The stock firmware works fine. I get full download speeds form the WAN on the wired LAN ports using the latest D-Link firmware.
What hardware revision did you receive when you RMA'd your DIR-825? I currently have revision B1.
Same issue, just noticed transferring an iso off of my server with a supposed gigabit connection capped at 2 megabytes per second exactly. I don't think it's a router issue; it caps transfer at exactly 2MBps and that seems like a weird symptom for a random failure...
Posted: Mon Feb 14, 2011 13:45 Post subject: WAN --> Wired LAN
dorsey wrote:
Same issue, just noticed transferring an iso off of my server with a supposed gigabit connection capped at 2 megabytes per second exactly. I don't think it's a router issue; it caps transfer at exactly 2MBps and that seems like a weird symptom for a random failure...
Souds like you are having a different issue tha I am. I am only experiencing slow WAN --> Wired LAN downloads. LAN <--> LAN transfers are fine for me.
Posted: Mon Feb 14, 2011 16:13 Post subject: Re: WAN --> Wired LAN
Lerxst2k wrote:
dorsey wrote:
Same issue, just noticed transferring an iso off of my server with a supposed gigabit connection capped at 2 megabytes per second exactly. I don't think it's a router issue; it caps transfer at exactly 2MBps and that seems like a weird symptom for a random failure...
Souds like you are having a different issue tha I am. I am only experiencing slow WAN --> Wired LAN downloads. LAN <--> LAN transfers are fine for me.
Sorry, I wasn't very clear. My issue is slow wired LAN to wireless transfers. I need to test and see if I am having an issue with LAN-to-LAN and WAN-to-LAN as well. I thought this was the thread I saw for this exact issue the other day, I might have just found the wrong thread though
Posted: Mon Feb 14, 2011 18:45 Post subject: Wired speed problem with DIR-825 B2
I have exactly the same problem with my DIR-825 B2:
WAN <=> WLAN Ok
but
WAN => LAN very slow (about 1-3mb/s)
WLAN => LAN very slow (about 1-3mb/s)
LAN => WAN Ok
LAN => WLAN Ok
LAN <=> LAN Ok
There was the same bug with OpenWRT, but the latest version (r25121) solved it: there was bad initialization values in the switch's driver (https: / / dev.openwrt.org / ticket/7988 )
I hope this could help the DD-WRT development team to solve the problem in the next version ...
Last edited by misterph on Mon Feb 28, 2011 22:42; edited 1 time in total
Looks like the ticket was closed.
I still have no idea how to fix this. I am running the latest build but I still have the problem with slow WAN -> wired LAN downloads.
Posted: Fri Feb 18, 2011 21:02 Post subject: Unsolved
I don't understand why the ticket has been closed, the problem is still there!
It seems to concern only the B2 version of the DIR-825, but not the B1 and neither the Netgear WNDR3700 (i've one too, and it works fine on DD-WRT).
Perhaps a different revision of the switch...
The symptoms are excactly the same with the older versions of OpenWRT, but they solved it on the last version. Why can't the DD-WRT team solve it too?
With such a bug, the DIR-825 B2 is unusable with DD-WRT, only 1-3 Mb/s WAN to LAN, when my connection goes up to 100mb/s with the stock firmware and with my WNDR3700!
Posted: Fri Feb 18, 2011 22:07 Post subject: Re: Unsolved
misterph wrote:
It seems to concern only the B2 version of the DIR-825, but not the B1 and neither the Netgear WNDR3700 (i've one too, and it works fine on DD-WRT).
Perhaps a different revision of the switch...
OK, I feel like an idiot now. Turns out my problem was unrelated, after tweaking my wireless settings I'm getting proper throughput around 10 MB/sec, and LAN->LAN speeds are through the roof off of my server. Sorry for being misleading , and good luck with your WAN issue.