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The Graveyard - Products No Longer Supported => Routers / COVR => DIR-890L => Topic started by: ruraldba on June 25, 2015, 12:34:51 PM

Title: Router freezing
Post by: ruraldba on June 25, 2015, 12:34:51 PM
A couple of weeks ago my internet seemed to start going down to all the devices in my home( wired and wireless ) several times per days for short bursts(~60 seconds). I contacted technical support and they had me re-flash to bios version 1.06( I was already on this version ) and also restore to factory defaults. This didn't seem to help. I have the syslog featured enabled and logging to my workstation which is hard wired to the router but the only traffic in there seems to be DHCP related. Today I ran a ping session continually in the background from my workstation to the router and noticed that when I loose my internet that the  ping session to the router times out.  So it seems to me that for some reason the router is hanging. When I login to the router after one of these events happen everything seems fine and according to the Connection uptime statistic everything has been connected for several days. I contacted support back but they had no answers and told me I would receive a call back from customer service in 1-2 days( which to me seems extremely lengthy). Has anyone here had a similar issue and had any luck resolving it?
Title: Re: Router freezing
Post by: FurryNutz on June 25, 2015, 12:56:39 PM
Link>Welcome! (http://forums.dlink.com/index.php?topic=48135.0)


Internet Service Provider and Modem Configurations

Wireless Configurations
Is Smart Connect Enabled?

Router Placement
Forum User - "Well I feel really dumb. After moving the router away from other electronic devices my speeds are back to normal. Just a heads up for anyone experiencing slow speeds, you might want to move it away from other electronics and see if that helps."
3-6' feet minimum safe distance between devices.
Placement on main level floor and central in the building and WELL ventilated is preferred. Not in basements or closets as building materials, or near by electronics devices could interfere or hinder good signal propagation.
http://www.smallnetbuilder.com/wireless/wireless-basics/31083-smallnetbuilders-wireless-faq-the-essentials (http://www.smallnetbuilder.com/wireless/wireless-basics/31083-smallnetbuilders-wireless-faq-the-essentials)
Title: Re: Router freezing
Post by: ruraldba on June 25, 2015, 01:34:06 PM
Answers inline below


Link>Welcome! (http://forums.dlink.com/index.php?topic=48135.0)

North Georgia/ US

Internet Service Provider and Modem Configurations
Gunby Communications Internet.
No real modem uses a Ubiquity Networks radio with a wireless 2Ghz link to a fiber backbone

   Wireless radio link


]What ISP Modem Mfr. and model # do you have?
      Static IP vi PPPOE

[/li]
   [li]What ISP Modem service link speeds UP and Down do you have? Link> Speed
Testing Sites (http://forums.dlink.com/index.php?topic=48352.0)[/li]
[/list]15MB up 15MB down dedicated connection

Wireless Configurations
Is Smart Connect Enabled?
No

Camera System
Nest thermostats
IP Cameras
2 Printers
3 Laptops
2 Workstations
2 Tablets
1 Solar Array Grid
3 Smart TVs
5 Smart Blue Ray players
2 Amazon fire sticks

No

[/q]
No

Router Placement
Forum User - "Well I feel really dumb. After moving the router away from other electronic devices my speeds are back to normal. Just a heads up for anyone experiencing slow speeds, you might want to move it away from other electronics and see if that helps."
3-6' feet minimum safe distance between devices.
Placement on main level floor and central in the building and WELL ventilated is preferred. Not in basements or closets as building materials, or near by electronics devices could interfere or hinder good signal propagation.
http://www.smallnetbuilder.com/wireless/wireless-basics/31083-smallnetbuilders-wireless-faq-the-essentials (http://www.smallnetbuilder.com/wireless/wireless-basics/31083-smallnetbuilders-wireless-faq-the-essentials)
Title: Re: Router freezing
Post by: FurryNutz on June 25, 2015, 01:36:49 PM
Would you please edit that post and change the color RED font to PINK? Red is kind of hard to see with this forum theme. Thank you.  ;)
Title: Re: Router freezing
Post by: FurryNutz on June 25, 2015, 01:46:00 PM
How long have you had the router and how long have you had this ISP radio service?
The ISP being on 2.Ghz even though the router has 2.4Ghz, I wonder if there could be any interferences. Frequency is kind close. Something to look at.

Out of these devices you have, what devices support 5Ghz if any?
Camera System
Nest thermostats
IP Cameras
2 Printers
3 Laptops
2 Workstations
2 Tablets
1 Solar Array Grid
3 Smart TVs
5 Smart Blue Ray players
2 Amazon fire sticks
You have quite a few wireless devices. Are they all connecting to the 2.4Ghz radio or any of them connecting to the 5Ghz radio...

You might do the following, Turn off as many wireless devices as you can and start testing with a couple or just high priority or devices that need access and see how the router operates. After a while, start adding one device at a time to see if the problem appears...

Also set IPv6 to Local Connection only...
Title: Re: Router freezing
Post by: ruraldba on June 26, 2015, 05:57:58 AM
I've had the internet service for about 3 years. I've had the router about a month. I don't think it's interference on the 2.4GHz because I have the router and wiress on channels at the opposite end of the spectrum. I've changed them a couple of times and it didn't make a difference,About 1/3 of the devices are 5Ghz. What's weird though is it's not just the wireless acting up. I work at home and I primarily use my workstation. I'm probably on it 10 hours a day. It's not using wireless and it's physically cabled to the router and it has problems as well. From my workstation here is what I see when I run a constant ping to the router:

(http://i233.photobucket.com/albums/ee258/mikechafin/timeout.jpg) (http://s233.photobucket.com/user/mikechafin/media/timeout.jpg.html)
Title: Re: Router freezing
Post by: FurryNutz on June 26, 2015, 07:19:42 AM
Ok, can you do this same ping with ALL wireless devices turned off and all LAN wired PCs disconnected from the router and the ISP service cable disconnected from the router? Just use one wired LAN PC connected to the router and run the ping test again...I want to make sure the ping times stop fluctuating. Capture a screen shoot please. Then connect the ISP service cable and run the ping test again and capture a screen shot please. Then we'll go from there...
Title: Re: Router freezing
Post by: ruraldba on June 26, 2015, 08:11:23 AM
Well it doesn't happen on demand. It happens maybe 10 times per day.  I went ahead and disabled all 3 wireless networks and I'll keep the ping running and see if another event occurs.
Title: Re: Router freezing
Post by: FurryNutz on June 26, 2015, 08:19:16 AM
The tests suggested is to know if there are any issues with the router by itself...I want to ensure the ping times are good with out being connected to the ISP modem then with the ISP modem only.
Title: Re: Router freezing
Post by: ruraldba on June 26, 2015, 10:15:40 AM
Makes sense. Unfortunately since it reproduces sporatically I can't leave my network down and wait for it to happen since I have to be online working. I just took the wireless networks down and only left my workstation connected with ethernet and I did just receive a timeout from the router. So whatever is happening it doesn't seem to matter if the wireless networks are on or off.
Title: Re: Router freezing
Post by: FurryNutz on June 26, 2015, 10:18:01 AM
Ok, so if the radios are off then something else on the line is causing something to happen...
Are all other wired connections disconnected from the router accept for your wired PC?
Title: Re: Router freezing
Post by: ruraldba on June 26, 2015, 12:29:36 PM
Quote from: FurryNutz on June 26, 2015, 10:18:01 AM
Ok, so if the radios are off then something else on the line is causing something to happen...
Are all other wired connections disconnected from the router accept for your wired PC?

Yes that's correct the only connection to the router is my workstation. I would be interested in watching the network graphs available in the router when the freeze happens but unfortunately the web interface for the router is also not accessible unti it is once again pingable.
Title: Re: Router freezing
Post by: FurryNutz on June 26, 2015, 12:40:39 PM
Ok if this is the case and it still hangs, Only think I can think of would be either something on the ISP line or some sort of other interferences...
Title: Re: Router freezing
Post by: ruraldba on July 08, 2015, 12:35:27 PM
Just wanted to update in case anyone else hit the issue. I got a warranty replacement from D-Link and the new router seems to be working fine with the exact same software setting as before.
Title: Re: Router freezing (RESOLVED)
Post by: FurryNutz on July 09, 2015, 08:26:28 AM
Glad the new unit is working. Enjoy.  ;)