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[nickthehockeyguy]

Demon Driver,

I too have the same problem.  I am on extreme service.  I should be getting downloads of 10mbps.  I am down to 1mbps.    I have been on with support for the last couple of days.   Dlink finally said, you will have to exchange the router.  I did yesterday night with the local computer store.

Guess what. The same problem.  I need to reboot the router to get the quick speeds.  I have installed the 1.21 firmware and disable the QOS and changed the MTU to 1400.   I am getting very fustated with the routers.  I hate to say this..I might buy an Apple.

I have three computers and a QNAP attached to the router. 

Nick

[Xinot]

Xinot for further assistance within this thread could u please post your router's hardware version and the firmware version you are utilizing, both are info that will be needed for people's diagnostics

Hardware version: A3
Firmware version: 1.21 (1.21Build11Beta02)

Tried 1.11 up to 1.22 with no help.

With UPnP this router is more unstable. One program which opens one port is too much.

[Demondriver]

i understand your frustration nick completely. i too tried the tech support, long story short after being on hold for 6hrs straight, talking to 2 lvl 3 tech support, being transfered to 2 rma specialists then finally the rma dept. supervisor i was told although my product is under full warrenty they would not issue an exchange, personally stated that i bought a known faulty product, if i wanted one that "worked" i would havta go buy another one and if i had a problem with it i can take it up with the better business bureau lol hence why i am on here and appreciating the assistance and feedback from the valuable community.  i'd rather continue "trying" to get this product to work since it cost so much money rather than spending another hundred and some dollars on yet another router for no reason (sadly cant take it back to the store because i bought it at circuit city XD).  o well rant over. continue assistance plz 8P

[nickthehockeyguy]

I've narrowed down that replacing the unit will not help.  I've changed the MTU backto 1500.  I got a download speed of 15mbps.  After 30 min its down to 5mbps.
The norm for me should be 10=12.

I wonder if it's my cable modem. 
Are you on dsl or cable?

Have you found any other threads on this forum regarding this matter.  I've been searching thru the net for the last few days.


Nick

[Demondriver]

i live in the country so my only access is "wireless" (mind u no issues prior to router in 2yrs), and i ran my internet directly into my motherboards built in ethernet adapter.

I have noticed other threads in this forum about poor download performance and have tried the techniques that ppl stated in those threads to no avail.  After changing my firewall settings for both tcp and udp like eddie suggested the degradation i am having still continues but the affect of it is as severe as before.  previously was dropping from 1.5mbps down 384k up to 4-500k down, 80k up.  so far over the day and a half ive had it changed i notice for a second or 2 it struggles hard to press past 400k down but then "magically" shoots to about 800k down and 100-140 up.  improvement but still horrible compared to where it should be.  its definetly a settings issue/hardware issue ive concluded but where the problem lies is still a mystery hoorah 8P

Try removing the router from your setup for an entire day. Run random tests to check your performance without the router. (dont change any settings leave things as you ran them before)  This will technically show you where your inherent problem lies whether it be pc side or the router. (chances are it will be the router 8P)

[nickthehockeyguy]

I have a feeling that this is a common problem.  Not too many people are aware of it because they are still getting a decent connection but are not measuring their speeds.

I've been changing the  settings on the router and still the same or worst results.

- disable SPI (Advanced->firewall settings),
-set your WAN connection to 100 Mbit instead of Auto (Advanced->Advanced network),
-Set UDP and TCP Endpoint filtering to "Endpoint independent" (Advanced->firewall settings)
-change the wireless channel (Setup->wireless manual)
-Ensure that Multicast streams are allowed (Advanced->Advanced network)
-APPLICATION LEVEL GATEWAY (ALG) CONFIGURATION has all items checked (Advanced->firewall settings)

The fustration part is my wife saying "Internet is slow again"


Demondriver, it sould like you have alot of experience.  I have a chance to change my router. What do you suggest? 

Thanks Nick.

[Demondriver]

ill be honest, i have experiance in the compuer field in general, so it helps me figure things out and pick up on stuff a little quicker than those without experiance bu my knowledge does have a scope 8P  Eddie is the network guru in the forums 8P 

Anyways i've done a little researching and asked a personal friend and i'd suggest taking a look at the dlink 4300 gamerslounge router.  He's had very good luck with it for the last 3 yrs and it has nice network prioritization software. 

One thing i have learned and the hard way is to read through the model's specific forum thread and see the issues people are having with it, firmware versions hardware version's etc. and try to steer clear of any troublesome model's. (the box for the router obviously gives that information on it)

If you dont really need a "n" router i'd also suggest looking at simpler "g" routers.  The technology may be a little older but it's more solid and mature in most aspects and neways your not gonna realize the performance the "n" routers claim just do to the limitations of the current internet infrastructure (a least in the u.s.) and hardware device's.  If "n" router's were more stable than i'd say go for it because it would give you a bit of future proofing but it's like going out and buying a concept car that hasnt had all the bugs worked out but in 15yrs it'll be the best damn thing in the world, sure isnt doing you much good right now is it? 8P

There is also a relatively cheap Linksys "g" router i noticed on newegg awhile back.  won 15 consecutive gold customer awards and has been around for years.  Something tell's me that it's probly pretty stable and performs well. cant remember the model number but if u search it up on there you'll see the one im talking about

[EddieZ]

The fustration part is my wife saying "Internet is slow again"

Could be other factors involved. Slow servers, slow ISP or slow ISP DNS....

[Xinot]

Could be other factors involved. Slow servers, slow ISP or slow ISP DNS....

Or maybe its this router.

[nickthehockeyguy]

thanks guys.

Actually when i made those changes yesterday, I checked the speeds later that night and the downloads where at 10mb which is the speed it should be. 

I think chaning the WAN speed to 100mb or installing a new version of Macafee?  I dunno.

One thing for sure, I checked the speed this morning and it was up to 20mb, which is outstanding.  Mind you, I have a cable modem so I am sharing the connection with every tom **** and harry and sandra in my area.  I will keep on testing.   

I am hoping the speeds stay consistent.


Nick

[EddieZ]

thanks guys.

Actually when i made those changes yesterday, I checked the speeds later that night and the downloads where at 10mb which is the speed it should be. 

I think chaning the WAN speed to 100mb or installing a new version of Macafee?  I dunno.

One thing for sure, I checked the speed this morning and it was up to 20mb, which is outstanding.  Mind you, I have a cable modem so I am sharing the connection with every tom [exploitive deleted] and harry and sandra in my area.  I will keep on testing.   

I am hoping the speeds stay consistent.


Nick

Could have been the WAN setting, but don't rule out the sharing your cable bandwidth (you could have mentioned that earlier...if they flood the smaller upload bandwidth, they are causing your connection to degrade: the intense correlation between uplink and downlink is obvious) or even McAfee (network filtering). Hope it remains this way, blaming the router is so easy...

[Demondriver]

alright after changing things with eddie's adive, enabling windows firewall (and yes allowing access to all my vital programs) "so far" my speeds seem to have stabilized to their norm. (based on a 2 day test of random p2p pulls, gaming, multiple device's hooked upto network etc.)

Have noticed though a noticeable increase in wan dropped connections (sometimes for just a minute or two then it comes back)

Digging through my log file eddiez the blocked outgoing attempts no longer appear (the icpm3 errors you were concerned about etc.).  Posted below is a short example of the error's now that are consistently recurrent :

[INFO]   Mon Feb 09 06:01:00 2009   Blocked incoming TCP connection request from 64.184.37.18:49823 to 64.184.37.18:80
[INFO]   Mon Feb 09 06:00:54 2009   Above message repeated 1 times
[INFO]   Mon Feb 09 06:00:53 2009   Blocked incoming UDP packet from 65.7.212.192:50401 to 64.184.37.18:23656

Is this troublesome or normal for so many blocked incoming packets to my ethernet address and various ports? (in say a period of 1-2hrs receiving roughly 100-200 errors of the same type)

[Xinot]

Have log full of this messages with SPI off.

Blocked incoming TCP packet from xx to xx as RST received but there is no active connection
Blocked incoming ICMP packet (ICMP type from xx to xx
Blocked outgoing ICMP packet (ICMP type 3) from xx to xx
Blocked incoming TCP packet from xx to xx as SYN:ACK received but there is no active connection
Blocked incoming TCP packet from xx to xx as ACK received but there is no active connection
Blocked incoming ICMP error message (ICMP type 3) from xx to xx as there is no TCP connection active between xx and xx

 

[EddieZ]

alright after changing things with eddie's adive, enabling windows firewall (and yes allowing access to all my vital programs) "so far" my speeds seem to have stabilized to their norm. (based on a 2 day test of random p2p pulls, gaming, multiple device's hooked upto network etc.)

Have noticed though a noticeable increase in wan dropped connections (sometimes for just a minute or two then it comes back)

Digging through my log file eddiez the blocked outgoing attempts no longer appear (the icpm3 errors you were concerned about etc.).  Posted below is a short example of the error's now that are consistently recurrent :

[INFO]   Mon Feb 09 06:01:00 2009   Blocked incoming TCP connection request from 64.184.37.18:49823 to 64.184.37.18:80
[INFO]   Mon Feb 09 06:00:54 2009   Above message repeated 1 times
[INFO]   Mon Feb 09 06:00:53 2009   Blocked incoming UDP packet from 65.7.212.192:50401 to 64.184.37.18:23656

Is this troublesome or normal for so many blocked incoming packets to my ethernet address and various ports? (in say a period of 1-2hrs receiving roughly 100-200 errors of the same type)

These are normal.

[EddieZ]

Have log full of this messages with SPI off.

Blocked incoming TCP packet from xx to xx as RST received but there is no active connection
Blocked incoming ICMP packet (ICMP type from xx to xx
Blocked outgoing ICMP packet (ICMP type 3) from xx to xx
Blocked incoming TCP packet from xx to xx as SYN:ACK received but there is no active connection
Blocked incoming TCP packet from xx to xx as ACK received but there is no active connection
Blocked incoming ICMP error message (ICMP type 3) from xx to xx as there is no TCP connection active between xx and xx

 

Read the thread, just went through that issue with Demondriver...