Jump to content


 


Register a free account to unlock additional features at BleepingComputer.com
Welcome to BleepingComputer, a free community where people like yourself come together to discuss and learn how to use their computers. Using the site is easy and fun. As a guest, you can browse and view the various discussions in the forums, but can not create a new topic or reply to an existing one unless you are logged in. Other benefits of registering an account are subscribing to topics and forums, creating a blog, and having no ads shown anywhere on the site.


Click here to Register a free account now! or read our Welcome Guide to learn how to use this site.

Photo

Internet speed reduced by a lot due to DNS issues?


  • Please log in to reply
9 replies to this topic

#1 OneStopShopper

OneStopShopper

  • Members
  • 15 posts
  • OFFLINE
  •  
  • Local time:05:11 PM

Posted 07 December 2016 - 10:03 AM

Hey fellas. I get my internet from a guy who lives in my building. He has a Fiber optic connection with a pretty good speed. He has a LAN cable from his modem to a Linksys switch which has a LAN cable to my Linksys  which I'm using as a bridge. Everything used to work perfectly until he broke his old switch and got this new Linksys one.After that internet stopped working for me. I went to his Modem settings and added a couple static DNS addresses because I kept getting a "DNS server isn't responding" error. I'm not sure why this worked but it did. Sadly, my internet has been absolutely horrendous since then. I cant do any work at all. Any help? I'm on Wifi. I'm no expert so forgive any mistakes I made. Here's a bleepty network map.

 

Huawei HG8245 with a Fiber optic connection > Linksys switch (LGS105/LGS108) > Linksys WAG200G (Old as bleep, I know) 

 

I attached a MiniToolBox txt.

Here's everything the sticky asked for.

Asus K56C

Wired. Less than 10 feet.
Linksys WAG200G

Fiber optic connected via LAN cable.

 

TL;DR Got a new switch, internet wouldn't work, added static DNS addresses on main network, internet worked but speed down to 0.1 MBps

Attached Files

  • Attached File  MTB.txt   42.36KB   4 downloads

Edited by OneStopShopper, 07 December 2016 - 10:05 AM.


BC AdBot (Login to Remove)

 


#2 Wand3r3r

Wand3r3r

  • Members
  • 2,027 posts
  • OFFLINE
  •  
  • Local time:07:11 AM

Posted 07 December 2016 - 11:13 AM

what dns entries did you add to the router and where?

You didn't change your workstation dns which should have been your first stop.

Dns errors usually relate to poor connection and are not really dns related.

 

Do a speedtest.net test via wifi and post the results.

I would suggest you pull the network cable on your bridge and connect wired to the neighbors router.

Then do another speedtest.net test and post the results.

Do tracert yahoo.com via a command prompt and post those results also for review.



#3 OneStopShopper

OneStopShopper
  • Topic Starter

  • Members
  • 15 posts
  • OFFLINE
  •  
  • Local time:05:11 PM

Posted 07 December 2016 - 12:06 PM

what dns entries did you add to the router and where?

You didn't change your workstation dns which should have been your first stop.

Dns errors usually relate to poor connection and are not really dns related.

 

Do a speedtest.net test via wifi and post the results.

I would suggest you pull the network cable on your bridge and connect wired to the neighbors router.

Then do another speedtest.net test and post the results.

Do tracert yahoo.com via a command prompt and post those results also for review.

 

I did change my workstation DNS before adding DNS's on the main network, it didn't help; my internet didn't work.

The entries I made were the two OpenDNS adresses 208.67.222.222 and 208.67.220.220. I later also added google's 8.8.8.8 and 4.4.4.4.

 

Via my own WiFi I'm getting 0.11 MB/s Download and 1.06 MB/s Upload.

On the main network I'm getting 20 MB/s Download and 1.1 MB/s Upload. This is the speed he's paying for.

 

Here's the Trace you asked for. I replaced the IP addresses belonging to my ISP with <ISP>

 

 

 

 
Tracing route to yahoo.com [206.190.36.45]
over a maximum of 30 hops:
 
  1     2 ms     2 ms     2 ms  192.168.100.1 
  2    12 ms    10 ms    11 ms  <ISP> 
  3    13 ms    11 ms    32 ms  <ISP>
  4    11 ms    11 ms    12 ms  <ISP> 
  5    23 ms    23 ms    24 ms  <ISP>
  6    67 ms    67 ms    67 ms  be52.palermo16.pal.seabone.net [195.22.197.22] 
  7   182 ms   181 ms   180 ms  racc.newyork50.new.seabone.net [195.22.216.149] 
  8   175 ms   172 ms   171 ms  exchange-cust1.dc2.equinix.net [206.126.236.16] 
  9   191 ms   189 ms   189 ms  ae-6.pat1.che.yahoo.com [216.115.96.81] 
 10   224 ms   223 ms   225 ms  ae-5.pat1.dnx.yahoo.com [216.115.96.34] 
 11   239 ms   238 ms   239 ms  ae-6.pat1.gqb.yahoo.com [216.115.101.195] 
 12   236 ms   238 ms   236 ms  et-19-1-0.msr2.gq1.yahoo.com [66.196.67.111] 
 13   250 ms   248 ms   246 ms  et-1-0-0.clr1-a-gdc.gq1.yahoo.com [67.195.37.93] 
 14   249 ms   250 ms   253 ms  et-18-1.fab1-1-gdc.gq1.yahoo.com [67.195.1.89] 
 15   313 ms   249 ms   248 ms  po-9.bas1-7-prd.gq1.yahoo.com [206.190.32.13] 
 16   260 ms   247 ms   254 ms  ir1.fp.vip.gq1.yahoo.com [206.190.36.45] 
 
Trace complete.
 


#4 Wand3r3r

Wand3r3r

  • Members
  • 2,027 posts
  • OFFLINE
  •  
  • Local time:07:11 AM

Posted 07 December 2016 - 12:13 PM

Would appear your bridge is what is at fault.  I would suggest replacing it.

 

Your ms times are great until you leave Italy and hit New York then they go to the 100's which isn't great.  But you hitting anything in Europe should be fine speed wise.



#5 OneStopShopper

OneStopShopper
  • Topic Starter

  • Members
  • 15 posts
  • OFFLINE
  •  
  • Local time:05:11 PM

Posted 07 December 2016 - 12:40 PM

Would appear your bridge is what is at fault.  I would suggest replacing it.

 

Your ms times are great until you leave Italy and hit New York then they go to the 100's which isn't great.  But you hitting anything in Europe should be fine speed wise.

But I don't understand how this is possible. The only thing that has changed is the switch. My router, the cables and the main network are unchanged. How could this brand new switch cause speed issues?



#6 toofarnorth

toofarnorth

  • Members
  • 391 posts
  • OFFLINE
  •  
  • Gender:Male
  • Local time:04:11 PM

Posted 07 December 2016 - 02:46 PM

the traceroute looks normal to me. the delay over to america is as expected.
 

was this done with cable or wifi?

it is interesting to know to help find out what the problem might be.
if it was using cable. did this cable come from your WAG or directly from his switch?

tfn



#7 Wand3r3r

Wand3r3r

  • Members
  • 2,027 posts
  • OFFLINE
  •  
  • Local time:07:11 AM

Posted 07 December 2016 - 02:55 PM

You are assuming the new switch is the problem but given the age of your bridge it could have gone at any moment.

 

There is one thing to investigate: matching port speeds.  If the new switch is a gig one and your bridge only supports 100mb then there can be a problem with the autonegociation between the two devices.  Manually set your bridge port connecting to the switch to 100mb full duplex from being set to auto.  Reboot the bridge and see what happens.



#8 OneStopShopper

OneStopShopper
  • Topic Starter

  • Members
  • 15 posts
  • OFFLINE
  •  
  • Local time:05:11 PM

Posted 08 December 2016 - 01:22 PM

the traceroute looks normal to me. the delay over to america is as expected.
 

was this done with cable or wifi?

it is interesting to know to help find out what the problem might be.
if it was using cable. did this cable come from your WAG or directly from his switch?

tfn

 

This was over wifi.

 

You are assuming the new switch is the problem but given the age of your bridge it could have gone at any moment.

 

There is one thing to investigate: matching port speeds.  If the new switch is a gig one and your bridge only supports 100mb then there can be a problem with the autonegociation between the two devices.  Manually set your bridge port connecting to the switch to 100mb full duplex from being set to auto.  Reboot the bridge and see what happens.

 

That's a great idea! I'll do that and report back. I'm currently having issues getting into the settings of my WAG200G. 

Thanks a lot for your help guys. I would be stuck with slow internet without you fellas.



#9 OneStopShopper

OneStopShopper
  • Topic Starter

  • Members
  • 15 posts
  • OFFLINE
  •  
  • Local time:05:11 PM

Posted 09 December 2016 - 09:26 AM

You are assuming the new switch is the problem but given the age of your bridge it could have gone at any moment.

 

There is one thing to investigate: matching port speeds.  If the new switch is a gig one and your bridge only supports 100mb then there can be a problem with the autonegociation between the two devices.  Manually set your bridge port connecting to the switch to 100mb full duplex from being set to auto.  Reboot the bridge and see what happens.

 

You were right! I connected the LAN cable from the switch directly to my laptop and the speeds skyrocketed. My WAG200G is the problem. I can't figure out how to set the port to 100MB full duplex. Any tips?



#10 toofarnorth

toofarnorth

  • Members
  • 391 posts
  • OFFLINE
  •  
  • Gender:Male
  • Local time:04:11 PM

Posted 10 December 2016 - 10:06 AM

try a cable from your wag200g, that will allow you to see if there is a problem with the wag200g itself or if it is the wifi part of it

if it is ok on the cable, but bad on wifi you now know that the problem is the wifi
if it is not ok on cable either you know its a general problem with the wag200g

test and give us feedback and we will help you with the next steps :)

tfn





 


Edited by toofarnorth, 10 December 2016 - 10:07 AM.





0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users