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The Graveyard - Products No Longer Supported => Routers / COVR => DIR-655 => Topic started by: sfedenis on April 29, 2015, 05:36:13 PM

Title: DIR-655 Constantly Disconnects and requires reboot
Post by: sfedenis on April 29, 2015, 05:36:13 PM
I have a DIR-655 and Comcast Cable for my ISP. I use this in my office and run 5 computers and 5 voip (8x8) phones. Everything is hardwired with cat6 cable. On a daily basis, everyone in the office will be working, and randomly everyone will lose internet all at once. The globe will be lit steady and the port lights will rapid flash all at the same speed/time. If I unplug the power for a second and plug it back in, we all have internet back once again. This problem started two years ago, then stopped for 6 months and now is back and not going away. Very annoying especially when trying to run a business that relies on the internet. DLINK customer support doesn't help. All they recommend is a factory reset, update firmware which I've done numerous times, and it fixes nothing. Can anyone help me out with this? Comcast says its the router and DLINK has already replaced the router so It shouldn't be bad.... I don't know what to do. I have a general understanding of networking but seem to always still know more than the reps who try to help and always seem to fail leaving me with this unresolved issue.
Title: Re: DIR-655 Constantly Disconnects and requires reboot
Post by: FurryNutz on April 30, 2015, 07:35:39 AM
Link>Welcome! (http://forums.dlink.com/index.php?topic=48135.0)

Does disabling the wireless radio on the router help? Try a test and see.

>FW Update Process (http://forums.dlink.com/index.php?topic=42457.0)

Internet Service Provider and Modem Configurations

Wireless Configurations
Links>Wireless Installation Considerations (http://forums.dlink.com/index.php?topic=48327.0) and Managing Signal Congestion (http://forums.dlink.com/index.php?topic=53228.0) and Good Neighbour Policy (http://forums.dlink.com/index.php?topic=10634.0)

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: DIR-655 Constantly Disconnects and requires reboot
Post by: sfedenis on April 30, 2015, 07:53:50 AM
Disabling wirless doesn't make a difference. I'm running ver B 2.11na
Title: Re: DIR-655 Constantly Disconnects and requires reboot
Post by: FurryNutz on April 30, 2015, 07:58:53 AM
Ok,
Please give feedback on the questions presented and lets see if we can help you figure this out.  :)
Title: Re: DIR-655 Constantly Disconnects and requires reboot
Post by: sfedenis on April 30, 2015, 08:44:29 AM
•What Hardware version is your router? Look at sticker under the router case. B1
•Link>What Firmware version is currently loaded? Found on the routers web page under status. 2.11na
•What region are you located? I'm located in Michigan. not sure what region that's considered
•Was a Factory Reset performed before and after any firmware updates then set up from scratch? Yes I did this with dlink tech support and it didn't help


Title: Re: DIR-655 Constantly Disconnects and requires reboot
Post by: FurryNutz on April 30, 2015, 08:49:41 AM
Ok, please give feedback for the ISP and wireless info as well.

Title: Re: DIR-655 Constantly Disconnects and requires reboot
Post by: sfedenis on April 30, 2015, 09:13:12 AM
Internet Service Provider and Modem Configurations
•What ISP Service do you have? Cable or DSL? Comcast Cable
•What ISP Modem Mfr. and model # do you have? SMCDG3
•Is ISP Modem/Service using Dynamic or Static WAN IP addressing? Dynamic
•What ISP Modem service link speeds UP and Down do you have? Link> Speed Testing Sites 52mb down 12mb up
•By-pass the main host router and check internet connection by connecting a wired LAN PC directly to the ISP modem to verify connection access and ISP speeds. Speeds were the same at 52 down and 12 up
•Check ISP MTU requirements, Cable is usually 1500, DSL is around 1492 down to 1472. Call the ISP and ask. Link>Checking MTU Values UNsure

Wireless Configurations
Links>Wireless Installation Considerations and Managing Signal Congestion and Good Neighbour Policy
•Ensure the default (dlink) SSID name is changed. Ensure that different SSID names are used between each WiFi 2.4/5Ghz radios. Can be anything and not something that's already in use by any neighbouring WiFi routers. Under Setup/Wireless/Manual. Name is changed
•What wireless modes are you using? Unsure what to check
•Any 2.4Ghz or 5Ghz cordless house phones or WiFi APs near by that maybe causing interferences?
•Any other WiFi routers in the area that maybe causing interferences? Link> Use InSSIDer to find out. How many? Use v3, its free. No other routers in area
•If you have any of these options, Try turning OFF or ON Short GI, WLAN Partition, Extra Wireless Protection and HT 20/40 Co-existence if you have it. Also testing with HT20/40Mhz Co-existence enabled will impact results as well. I prefer to use this option OFF. Recommended settings are default. Under Advanced/Advanced Wireless. Currently Short GI is checked and so is WMM Enable. WLAN Partition is unchecked
Title: Re: DIR-655 Constantly Disconnects and requires reboot
Post by: FurryNutz on April 30, 2015, 09:26:16 AM
Is this your ISP modem?
http://mydeviceinfo.comcast.net/device.php?devid=216 (http://mydeviceinfo.comcast.net/device.php?devid=216)

If so, it may have a built in router already...



Title: Re: DIR-655 Constantly Disconnects and requires reboot
Post by: sfedenis on April 30, 2015, 09:49:30 AM
Prior to me getting this SMC modem last week, I had a stand alone modem that only had one port and I still had the same issue then as I am now with having to reboot the router everyday multiple times (randomly). 

I see in the firewall settings in the modem, the option is checked next to "disable firewall for true static IP subnet only" and "disable gateway smart packet detection" is checked also.

When I called to have Comcast bridge the modem, I had no connection at all. They said I needed to purchase a static ip from them.

I do see in the modem settings an option for Enable DMZ host and then it allows me to enter an ip address.

In the routers webpage, Status/Device Info/Wan Section, if there is a IP of 10.1.10.10 which is the modems IP. I don't see a 192.168.0.XXX anywhere in there.


Title: Re: DIR-655 Constantly Disconnects and requires reboot
Post by: FurryNutz on April 30, 2015, 10:00:51 AM
Use the DMZ on the ISP modem and place the 655s IP address it gets from the ISP modem into the DMZ on the Modem.

10.x.x.x are private IP addresses along with 192.168.x.x. I think 10.x.x.x are used by CC on there modem/routers.
Title: Re: DIR-655 Constantly Disconnects and requires reboot
Post by: sfedenis on April 30, 2015, 10:22:38 AM
Okay I turned on DMZ in the modem settings and entered  10.1.10.10. It kicked me off and reconnected. Do you think this will solve the problem or is there more to do?
Title: Re: DIR-655 Constantly Disconnects and requires reboot
Post by: sfedenis on April 30, 2015, 10:26:54 AM
These two settings here I have been unsure of as well. One person tells me one thing, one tells me another about what needs to be on and off.
In the router settings, there are two options:

Enable Multicast Streams :on/off
&
Enable IPv6 Multicast Streams : on/off

Which one(s) should be enabled and or disabled?   
Title: Re: DIR-655 Constantly Disconnects and requires reboot
Post by: FurryNutz on April 30, 2015, 10:28:16 AM
We can only hope.

You might want to put one or two wired PCs directly connected to the ISP modem and test to see if those exhibit problems as well while others are connected to the 655. If the 655 shows problems again, check the PCs connected to the ISP modem. if they show similar problems then there is a problem with the ISP modem or service. If the 655 only shows the problem then we'll need to look closer at the 655 configuration and settings.

For now having two routers on line isn't working well and I presume this maybe the root cause.
Title: Re: DIR-655 Constantly Disconnects and requires reboot
Post by: FurryNutz on April 30, 2015, 10:29:57 AM
If your streaming any sort of media content then they should be enabled. If your not streaming via IPv6 then you can leave that disabled. If your not doing any sort of streaming while using external or internal streaming video sources, then you can leave them disabled.

Quote from: sfedenis on April 30, 2015, 10:26:54 AM
These two settings here I have been unsure of as well. One person tells me one thing, one tells me another about what needs to be on and off.
In the router settings, there are two options:

Enable Multicast Streams :on/off
&
Enable IPv6 Multicast Streams : on/off

Which one(s) should be enabled and or disabled?   
Title: Re: DIR-655 Constantly Disconnects and requires reboot
Post by: sfedenis on April 30, 2015, 10:38:25 AM
I haven't always had two routers. Previous to last week was a stand alone modem and I still experienced the same issues. I will wait to see if it drops connection again and then plug right into the modem when this happens to see if I have connection.
Title: Re: DIR-655 Constantly Disconnects and requires reboot
Post by: FurryNutz on April 30, 2015, 10:54:44 AM
Ok. You have a connection now and all is working?

What is going on when this disconnect happens? Are users on the phones as well when this happens or is this kind of random behavior?

is Traffic Shaping and QoS enabled on the 655?
Title: Re: DIR-655 Constantly Disconnects and requires reboot
Post by: sfedenis on April 30, 2015, 11:15:21 AM
Just normal everyday internet/phone use. Nothing unordinary that is happening to cause it to go down. Our phones are thru 8x8 (voip) and yes QOS is enabled with settings provided from 8x8.
Title: Re: DIR-655 Constantly Disconnects and requires reboot
Post by: FurryNutz on April 30, 2015, 11:21:02 AM
Can you post a picture of the QoS settings please.
Adding Screenshots In A Post (http://forums.dlink.com/index.php?topic=58120.0)

Also be aware that QoS and your ISP uplink speed maybe a problem due to that this model routers QoS uplink speeds is capped at 2Mb. Which may or may not be a cause of this issue. I'm hoping no and that DMZ on the ISP modem will maybe be the fix.  ::)
Title: Re: DIR-655 Constantly Disconnects and requires reboot
Post by: sfedenis on April 30, 2015, 11:55:46 AM
(http://s16.postimg.org/nqnq9hlqt/QOS.jpg)
Title: Re: DIR-655 Constantly Disconnects and requires reboot
Post by: FurryNutz on April 30, 2015, 12:10:10 PM
Are these settings only for the VoIP phones?
Title: Re: DIR-655 Constantly Disconnects and requires reboot
Post by: sfedenis on April 30, 2015, 12:45:23 PM
Correct
Title: Re: DIR-655 Constantly Disconnects and requires reboot
Post by: FurryNutz on April 30, 2015, 01:22:41 PM
Ok, having these settings like this maybe another cause.
These settings are effecting all devices connected to the router. PCs and etc. I presume that PCs and other devices do not need this configuration accept only the VoIP phones. I would recommend that you 1st, reserve IP addresses in sequence, i.e. 192.168.0.150 thru .155 for just the VoIP phones. Then, instead of using 0.0.0.0 thru 255.255.255.255 for the Local IP address range in QoS, change the LOCAL IP RANGE values to 192.168.0.150 to 192.168.0.155 for the LOCAL IP Range for each of these QoS rules. This will tell QoS that only the VoIP phones in the new IP address range to apply this rule too using the reserved IP addresses in that new sequence. All other PCs and device will not get these rules since they don't need this configuration.

2ndly, the Priority should not be 1 as this maybe another cause of the router disconnection. Priority 1 means that all bandwidth would be reserved to these devices and any other devices would be starved by bandwidth and not get much if any Internet data. This maybe why the router could be stopping. I recommend changing the priority to 50.

Then make one more rule in QoS, name it ALL OTHER DEVICEs. Input values for LOCAL IP RANGE 192.168.0.100 to 192.168.0.120. Use 0.0.0.1 to 255.255.255.254 for REMOTE IP RANGE. Select ANY from the Protocol drop down menu. Set the Priority to 128 as this value is normal bandwidth management for the devices in this local address range. Check mark the check box to enable this rule then select Save Settings and reboot now. This rule will allow any PCs or devcies connected in this range to work well with the other QoS rules and still get some priority and bandwidth and not be started for data flow. I would reserve IP addresses for the 5 PCs and any other devices, with in the Local IP Range as well, 192.168.0.100 to 192.168.0.120.

Title: Re: DIR-655 Constantly Disconnects and requires reboot
Post by: sfedenis on April 30, 2015, 01:29:40 PM
Okay. I will try what you recommended. I will have to take some time and do this one at a time because currently I have every device set with a static ip so I will re-group them accordingly.  --  phones --  others -- etc --
Title: Re: DIR-655 Constantly Disconnects and requires reboot
Post by: FurryNutz on April 30, 2015, 01:35:52 PM
Ya, don't use static IPs. Use reserved IPs on the Router. Could be another reason why the router isn't working well.
Title: Re: DIR-655 Constantly Disconnects and requires reboot
Post by: sfedenis on April 30, 2015, 01:41:27 PM
As far as setting statics to the computers, they're the only devices in the office that are not set on statics. I want to make sure I set them right so I can create the appropriate rule in the QoS settings within the IP range. I always get confused on if I change the settings for IPv4 or IPv6. I believe its IPv4. Preferred DNS is the one that I don't know what goes in there. Would I enter the 10.1.10.10 like I did earlier today in the modem?
Title: Re: DIR-655 Constantly Disconnects and requires reboot
Post by: FurryNutz on April 30, 2015, 01:54:14 PM
Understand. Reserved IPs are used in the routers default IP address pool, i.e. 192.168.0.100 thru .199. You can use statics however they need to be out side of the default address pool range. However since you need the router to mange and do QoS operations, you need reserved IPs for this kind of configuration.

Review this: DHCP (http://forums.dlink.com/index.php?topic=58017.0)

Any changes maybe on the router are in a IPv4 environment, i.e ###.###.###.### format. IPv6 is ####.####.####.####.####.####. More complex format.

If you want to use custom DNS settings you can tell the router to use specific addresses under Setup/Internet/Manual. Then turn OFF DNS relay on the router then the router will pass these addresses to each device instead of seeing 192.168.0.1 as the DNS address when DNS Relay is enabled. Some access control features need DNS Relay enabled to work correctly on D-Link routers.