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Author Topic: DIR-655 disconnect wan and wlan under heavy torrent load.  (Read 59186 times)

FurryNutz

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Re: DIR-655 disconnect wan and wlan under heavy torrent load.
« Reply #30 on: May 11, 2013, 10:49:10 AM »

I'm going to presume that your maxing out the router doing all these torrents at once and as the result, your seeing slow downs. You need to moderate and adjust your torrents accordingly so that the router isn't bogging down. If your can't adjust the torrents for best performance for downloading and sharing the other connections for other uses then maybe this router isn't a good fit.

This router works well however I presume that when you are maxing out the routers abilities, limits will be experienced. You'll need to find other alternatives if you can't moderate Torrent downloads. These routers can only do so much.

Good Luck.
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jackthesmack

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Re: DIR-655 disconnect wan and wlan under heavy torrent load.
« Reply #31 on: May 11, 2013, 11:04:48 AM »

I'm going to presume that your maxing out the router doing all these torrents at once and as the result, your seeing slow downs. You need to moderate and adjust your torrents accordingly so that the router isn't bogging down. If your can't adjust the torrents for best performance for downloading and sharing the other connections for other uses then maybe this router isn't a good fit.

This router works well however I presume that when you are maxing out the routers abilities, limits will be experienced. You'll need to find other alternatives if you can't moderate Torrent downloads. These routers can only do so much.

Good Luck.

I can't do 43 connections at 1MB/s upload? There is clearly something wrong. I don't have hundreds of connections open. If I cut the upload speed from Unlimited to 80K/s, then the internet starts working fine again. The connection count remains the same.
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Router:         DIR-655
Hardware Version:   B1
Firmware Version:      2.11NA

jackthesmack

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Re: DIR-655 disconnect wan and wlan under heavy torrent load.
« Reply #32 on: May 11, 2013, 11:39:36 AM »

OK I re-enabled QOS and all the features of it and rebooted the router. Then I unchecked every single thing before unchecking QOS (and causing all the options to become greyed). So I made sure no option under QOS was greyed out AND checked. After that I rebooted it again.

At 1MB/s upload with 215 seeds websites were working fine for the first few minutes, but then it started degrading. The routers pings started to climb, and DNS failed after a few minutes. Websites that I haven't been to previously since I rebooted the router give a DNS error.

Here is what the pings looked like at the beginning:




After a few minutes:




Notice that the connections are nearly the same (bottom left).
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Router:         DIR-655
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jackthesmack

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Re: DIR-655 disconnect wan and wlan under heavy torrent load.
« Reply #33 on: August 26, 2013, 06:02:03 PM »

I think I DID FIX IT!
Update: 2 days after doing this fix, and my internet is running perfect with 210 torrents seeding during the entire time.


I disabled Advanced DNS Service. However, I read that there can be problems if the router is unable to get the DNS or is offline, so I manually added in my ISP's DNS servers.

To do all this, go to your Router's Page, click Status, then Device Info. Note down the DNS servers for your WAN, then go to Setup > Manual Internet Connection Setup. Uncheck Enable Advanced DNS Service, then put in the Primary DNS Address and Secondary DNS Address that you noted on the Status page.


I guess this option normally has the router process all the DNS requests, in case the DNS server doesn't work or something. I really don't know. But I was overloading it with possibly hundreds of requests, or ballooning it's cache.

If I still have problems, I'll update. But right now browsing the world wide web is insanely fast. Pages load almost instantly!

Edit: Currently I also disabled the following "features", which fixed all my router's issues:
  • DNS Relay
  • QOS (Quality of Service) / Traffic Shaping
  • Advanced DNS Service
  • SPI

Edit 2: I set my router's DNS addresses to 0.0.0.0 also. No need to manually put in the modem's address.
« Last Edit: August 28, 2013, 05:11:09 PM by jackthesmack »
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FurryNutz

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Re: DIR-655 disconnect wan and wlan under heavy torrent load.
« Reply #34 on: August 26, 2013, 06:07:15 PM »

Or you can try this as well:
>Finding Faster DNS Addresses using Name Bench

Glad you got it working well for you.

Enjoy.


I think I've fixed it.

I disabled DNS Relay. However, I read that there can be problems if the router is unable to get the DNS or is offline, so I manually added in my ISP's DNS servers.

To do all this, go to your Router's Page, click Status, then Device Info. Note down the DNS servers for your WAN, then go to Setup > Manual Internet Connection Setup. Uncheck Enable Advanced DNS Service, then put in the Primary DNS Address and Secondary DNS Address that you noted on the Status page.


I guess this option normally has the router process all the DNS requests, in case the DNS server doesn't work or something. I really don't know. But I was overloading it with possibly hundreds of requests, or ballooning it's cache.

If I still have problems, I'll update. But right now browsing the world wide web is insanely fast. Pages load almost instantly!
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jackthesmack

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Re: DIR-655 disconnect wan and wlan under heavy torrent load.
« Reply #35 on: August 26, 2013, 06:35:24 PM »

Well my ISPs DNS server came out the fastest, but what's weird is it said it was 200% faster than using my router's DNS...despite my router set to the exact same one. I set my computer's settings to the IP address directly and now new web pages do load slightly faster. I don't understand why it doesn't just pass the address to my computer through DHCP.
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FurryNutz

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Re: DIR-655 disconnect wan and wlan under heavy torrent load.
« Reply #36 on: August 26, 2013, 06:43:36 PM »

You have to run the test with out the router being online, PC direct to ISP Modem.
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jackthesmack

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Re: DIR-655 disconnect wan and wlan under heavy torrent load.
« Reply #37 on: August 26, 2013, 06:50:03 PM »

You have to run the test with out the router being online, PC direct to ISP Modem.

Would such a test not be accurate to real world experience? I'm always going to be behind a router, therefore the tests should be done behind the router.
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FurryNutz

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Re: DIR-655 disconnect wan and wlan under heavy torrent load.
« Reply #38 on: August 26, 2013, 07:02:51 PM »

No, by testing behind the router you are not testing for more accurate data. Once the accurate data has been gathered, then you can input that into the router and the router will have the best addresses to use.
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jackthesmack

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Re: DIR-655 disconnect wan and wlan under heavy torrent load.
« Reply #39 on: August 26, 2013, 09:42:06 PM »

No, by testing behind the router you are not testing for more accurate data. Once the accurate data has been gathered, then you can input that into the router and the router will have the best addresses to use.

I'll try doing the namebench test tonight when no one is using my server, but I am now getting really good speeds by directly connecting to my ISP's nameservers.

Also in my post I accidentally said "DNS relay" when I meant "Advanced DNS Service". I just disabled DNS Relay and now I am getting my modem's DNS address when using Automatic Configuration.


Also, as a mod can you link to the post with my fix in the original post for people who find this on google?
« Last Edit: August 26, 2013, 09:44:40 PM by jackthesmack »
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FurryNutz

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Re: DIR-655 disconnect wan and wlan under heavy torrent load.
« Reply #40 on: August 27, 2013, 07:19:29 AM »

IF your getting good services and performance with your ISPs DNS addresses then you should use those. Test NameBench if you want too.

Added this thread link to the Torrent FAQ

Enjoy.
« Last Edit: January 27, 2015, 08:31:19 AM by FurryNutz »
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jackthesmack

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Re: DIR-655 disconnect wan and wlan under heavy torrent load.
« Reply #41 on: August 27, 2013, 10:35:31 AM »

I was thinking about what you said, trying to understand why testing from the modem instead of behind the router would be better, and I realized that we're both right.

When DNS relay is enabled, the router is acting like a DNS server. Therefore, if you want to use this option, then you would test the name servers in the same place the router will be: Directly connected to the modem.

However, with DNS relay disabled OR if you're putting the DNS servers into your computer's network settings manually, testing from behind the router is preferred, since the tests are done in the same way you will actually connect to the DNS servers. Even with all the router DNS settings enabled, setting your DNS to a WAN IP bypasses that, right? Or is the router smart enough to sniff the packets for DNS queries and process them?
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FurryNutz

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Re: DIR-655 disconnect wan and wlan under heavy torrent load.
« Reply #42 on: August 27, 2013, 10:50:38 AM »

To rule out any odd results or false positives, I would presume that testing with out the router being online would be preferred as to gain the best and more accurate results for testing for better DNS. Doing this also at the modem is preferred as most Modems may have built in NAT, which in most cases I presume would be disabled however, people are still running in Double NAT conditions. Modems could still be a point of contention if this is the case. Overall, testing directly to a non NAT ISP modem is preferred for best and the most accurate results.
« Last Edit: January 27, 2015, 08:31:45 AM by FurryNutz »
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jackthesmack

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Re: DIR-655 disconnect wan and wlan under heavy torrent load.
« Reply #43 on: August 27, 2013, 12:23:30 PM »

To rule out any odd results or false positives, I would presume that testing with out the router being online would be preferred as to gain the best and more accurate results for testing for better DNS. Doing this also at the modem is preferred as most Modems may have built in NAT, which in most cases I presume would be disabled however, people are still running in Double NAT conditions. Modems could still be a point of contention if this is the case. Overall, testing directly to a non NAT ISP modem is preferred for best and the most accurate results.

Wouldn't the odd results and false positives be ruled out by the fact that by default 250 tests are done per nameserver? And if there is a large amount of odd results to affect the overall test results, wouldn't such problems be experienced during normal use to affect the web surfing experience?

An analogy to this would be if we wanted to know how long it takes to drive from home to work. Do you test at 2AM when the road is clear to get the exact time without traffic? Or do you test at 7AM, during medium or heavy traffic? With the 2AM test, you will get consistent results, but they wont match the real world expirience. If you do the 7AM test, you will get results with much larger margins, but they will reflect the real world better.

You can normalize the margins though by repeated testing and taking the averages. So that one day that it took 15 minutes longer because of an accident will be nullified by the dozens, or even hundreds, of other days measured without accident. But if 1/3 of the time there's always some person blocking a specific lane that causes you to take 3 minutes longer, that is a relevant real world variable that can consistently effect your travel time.

And what if you had a motorcycle tested against a car? The motorcycle would take roughly the same amount of time as a car at 2AM, but at 7AM there would be a major different because of traffic, which could have significant weight in deciding what to drive to work.


Similarly on a DNS test where you want to get the fastest DNS response from your computer, you would do the testing from your computer, with the network setup the way you will using it. Otherwise, you're fudging the results. In fact, by doing it this way I discovered my router's DNS Relay was slowing my DNS response time by 200%! And upon changing my DNS settings I have noticed an improvement as great as the test implied. Had I done it without my router connected, I might not have been led to the DNS relay issue.
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FurryNutz

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Re: DIR-655 disconnect wan and wlan under heavy torrent load.
« Reply #44 on: August 27, 2013, 12:42:16 PM »

Not necessarily, as DNS is usually a static IP address and is only access for those applications that need DNS direction and reply. Most DNS usually doesn't change so there is some level of comfort knowing that they should not change frequently like other IP addresses to. I think what effects DNS performance is distances and hops. I believe the NameBench tests to see what is best available in distances and hops and probably time as well. If DNS Relay is used on the Modems and Routers, then this might effect how NB tests and gets results. If routers are used for the main host router, once the DNS has been acquired, it's up to the user weather or not to use DNS relay. DNS Relay may add some performance hits. Over all we are trying to streamline the routers handling of traffic as best as possible by turning off un-necessary features that may or may not be used on a daily basis. Let the DNS pass thru rather to the devices with out any conversion. Normally DNS Relay works just as good ON as with it OFF. One thing to remember about DNS Relay and Manual DNS, Relay with automatically adjust to different DNS should it change, manual you'll need to figure out what happened to DNS if something changes. However DNS really shouldn't change unless you move ISPs or to a different region.

NameBench is there as an option if users really have a need to use other DNS. This is not to say that using default ISP DNS isn't good solution either. I always recommend that if there DNS and routers are working as is, Keep it that way. Unless you feel like fiddling.  ;D
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