D-Link Forums
The Graveyard - Products No Longer Supported => Routers / COVR => DIR-655 => Topic started by: phireph0x on January 15, 2015, 08:35:59 PM
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Hardware Version: A2
Firmware Version: 1.37NA
My DIR 655 will disconnect/reset the network (BOTH wired LAN and Wifi) multiple times each day. I have both wired machines and wireless experience this intermittent downtime when the router resets itself.
I've noticed this issue for some time but it's gotten worse since I updated to 1.37NA. I updated as I was having issues with my Nest thermostat disconnecting from Wifi.
I've followed the firmware upgrade steps listed here http://forums.dlink.com/index.php?topic=42457.0, in an attempt to resolve this issue. I did a factory reset, flashed the firmware 1.37NA (same that I have installed), another factory reset, then uploaded my previously saved configuration settings. I performed these steps around 8:15PM (CST) and the DIR 655 has already reset since then (!), so it didn't correct the problem.
I'm logging the DIR 655 to a remote syslog server so am capturing the exact times the devices goes down. There doesn't seem to be a timing correlation as far as I can tell.
Ideas?? Any suggestions would be appreciated! :)
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Link>Welcome! (http://forums.dlink.com/index.php?topic=48135.0)
Internet Service Provider and Modem Configurations
- What ISP Service do you have? Cable or DSL?
- What ISP Modem Mfr. and model # do you have?
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)
- Ensure the default (dlink) SSID name is changed. Can be anything and not something that's already in use by any neighboring WiFi routers. Under Setup/Wireless/Manual.
- What wireless modes are you using?
- 2.4Ghz Routers only: Try single mode G
- Channel Width set for Auto 20/40Mhz or try 20Mhz only.
- Try setting a manual Channel (http://en.wikipedia.org/wiki/Wireless_channels) to a open or unused channel. 1, 6 or 11. 11 for single mode N if the channel is clear.
- What security mode are you using? Preferred security is WPA-Personal. WPA2/AES Only. Some WiFi adapters don't support AES (http://en.wikipedia.org/wiki/Advanced_Encryption_Standard), so you might want to try TPIK (http://en.wikipedia.org/wiki/Temporal_Key_Integrity_Protocol) only or Auto TPIK and AES.
- Ensure any devices with WiFi adapter drivers are updated.
- Any 2.4Ghz or 5Ghz cordless house phones or WiFi APs near by?
- Any other WiFi routers in the area? Link> Use InSSIDer (http://www.techspot.com/downloads/5936-inssider.html) to find out. How many? Use v3, its free.
- If you have any of these options, Try turning OFF or ON Short GI (http://www.smallnetbuilder.com/wireless/wireless-features/30969-what-do-80211ns-optional-features-mean-for-you), 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.
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)
There maybe some incompatibility between this older generation router and the NESTs.
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AT&T U-Verse, Pace Plc 3801HGV is the modem
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If the ISP modem has a built in router, it's best to bridge the modem. Having 2 routers on the same line can cause connection problems: Link>http://www.practicallynetworked.com/networking/fixing_double_nat.htm and http://cognitiveanomalies.com/cisco-nat-how-nat-works/. If the modem can't be bridged then see if the modem has a DMZ option and input the IP address the router gets from the modem and put that into the modems DMZ.
Disable any additional WiFi on the modem as well...If possible
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Wifi is disabled on the modem and has been since the beginning. The DIR 655 is configured as a DMZ device on the modem.
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2.4Ghz Routers only: Try single mode G
Channel Width set for Auto 20/40Mhz or try 20Mhz only.
Try setting a manual Channel to a open or unused channel. 1, 6 or 11. 11 for single mode N if the channel is clear.
What security mode are you using? Preferred security is WPA-Personal. WPA2/AES Only. Some WiFi adapters don't support AES, so you might want to try TPIK only or Auto TPIK and AES.
Ensure any devices with WiFi adapter drivers are updated.
Any 2.4Ghz or 5Ghz cordless house phones or WiFi APs near by?
Any other WiFi routers in the area? Use InSSIDer to find out. How many? Use v3, its free.
Let us know how the NESTs work with different settings.
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The problem isn't really with the Nest, that's a red herring here. The issue is my DIR 655 resets itself several times each day, not really a Wifi connectivity issue per se. All of my devices are fine individually. But this intermittent reset is impacting my ability to do reliable backups and other activities.
I'm using WPA2/AES only. No cordless phones or other Wifi routers.
Is there a way to get DEBUG level logs out of the DIR 655? It'd be nice to know if there's a specific event or chain of events causing the reset, then we could home on in the culprit causing this issue (and possibly resolve a firmware bug).
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ID turn OFF ALL WiFi devices. Start with one of them and test. Graduate turning on each device and check the router behavior.
I'd also disable the WiFi radio on the router and test to see if the router reboots there as well. Connect up wired LAN computers and test.
Reboots are usually a misconfiguration of the router, bad WiFi signal or external interferences.
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Not a bad strategy, except I have ~15 Wifi devices (not all simultaneously on the network, but at various times), including smartphones, laptops, IP cameras, smart outlets, thermostat, etc. Plus a couple of wired LAN devices as well. I'd happily troubleshoot these one-by-one, except I can't reliably reproduce the condition that causes the router to reset. In fact, my DIR 655 just went 2 days 7 hours without a reset. Since then it's reset twice in the last hour. On Jan 15 in the morning, it reset 3 times within a 15 minute time span, according to the device logs on my syslog server. How can I get more granular logs to determine the state of the device prior to a reset? DEBUG level logging is really what I need here. This would help me pinpoint if it's a particular device interfering or other condition present in the router that could be correlated to the reset.
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If it's stable for a period of time then reboots, this is a symtom of interferences i think.
Any other WiFi routers in the area? Use InSSIDer to find out. How many? Use v3, its free.
This is not a problem of the router rather the router maybe trying to find a clear and open channel to use.
I've got 3 versions of the router and all 3 work well. However I only have a few other WiFi neighbors in my area and maybe have 10 WiFi devices...
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I do see a lot of wireless access points from my neighbors, 3 currently besides my own. I used OS X Wireless Diagnostics tool (http://www.computerworld.com/article/2476307/mac-os-x/os-x-mavericks--using-apple-s-hidden-wi-fi-diagnostics-tool.html) to view area networks. I'll try and switch to a different channel and see if that helps. Thanks.
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Try setting a manual Channel (http://en.wikipedia.org/wiki/Wireless_channels) to a open or unused channel. 1, 6 or 11.
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I've set my DIR 655 to a manual channel of 6 and will update with the results.
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;)
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No luck, the DIR 655 just reset itself, twice in the last couple hours.
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Try channel 1 or 11 now...
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I believe channel 1 was autoselected before I began trying manual channels. I've switched to channel 11 and will monitor and update here.
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Ok, would you post a capture of InSSIDers results and what it finds for your surroundings please?
Adding Screenshots In A Post (http://forums.dlink.com/index.php?topic=58120.0)
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Yes, I will post a screenshot from the OS X Wireless Diagnostics tool tonight.
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;)
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Today the DIR 655 reset itself again at 1:47PM CST. It went almost two days without a reset. I'll work on posting a wifi diagnostics screenshot tonight. What other recommendations do you have? The router was on channel 1 (autoselected) before I manually switched it.
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Please post a pic of the WiFi surrounding when you get a chance...
- Try setting Medium or Low power output settings and test again Under Advanced/Advanced Wireless.
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Here's a screenshot of Apple's Wireless Diagnostics tool. It's summary says:
Crowded Channel, says channel 11 is crowded and I should set the router to automatic channel (which I was doing initially), or use 5GHz band, which the DIR 655 doesn't support.
Strangely, the screenshot summary says current channel is 6, but it's 11.
(http://i.imgur.com/4ljnltq.png)
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I also have this router. I'm unclear on the screen capture you posted. Are both networks showing -49 rssi yours? I'd think it might be only if you were using guest zone, but just for clarification. From what traffic you have I'd move to Ch 1.
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Yes, both -49 rssi networks are mine (it's the same network).. I'm not sure why two appear, but I have a hidden SSID, so perhaps that's it. I'll try to manually set to channel 1, although it had been autoselected before I began manually changing the channel.
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To uncomplicate things, if guest network is enabled I'd disable it. If its not enablled I'd wonder what that is. Two networks, same channel, same strengh, can't be good. I'd assume the ssid's that are not broadcast better be unique (usually the guest acct would have guest in its ssid).
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No guest account enabled, and I agree it's peculiar. I just verified that the MAC addresses are the same, so it's definitely the same network (mine).
Perhaps the OS X wireless tool displays two entries for hidden networks: one with the actual name and one without. Not sure why though since it's confusing.
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Channel 1 isn't working either, as it's reset 3 times since I moved to channel 1.
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I've moved it back to auto channel scan mode.
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I'm suspecting that its a problem with your modem. Here is a similar post on another forum with issues of disconnects and a dlink router. Maybe worth looking into the modem settings, or asking ATT.
http://www.dslreports.com/forum/r28770167-Issues-with-router-behind-router
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This diagnostic utility doesn't show what the other WiFi neighbors are using...there any display for that possibly? InSSIDer shows what neighbors are using for channels. Can you post what InSSIDer results in?
One thing you can do to add 5Ghz to your 655, install a DAP model wireless AP from D-Link and migrate some of your devices that support 5Ghz...At some point.
You need to isolate the router from all 2.4ghz signals as best as possible while testing. Even if you can fully disable the ISP Modems WiFi fully for a while. This will be a big issue if the modem still broadcasts 2.4Ghz. Technically you should be able to if you set it on channel 1 and the DIR-655 on 11, however you maybe dealing with additional neighboring WiFi as well.
Here's a screenshot of Apple's Wireless Diagnostics tool. It's summary says:
Crowded Channel, says channel 11 is crowded and I should set the router to automatic channel (which I was doing initially), or use 5GHz band, which the DIR 655 doesn't support.
Strangely, the screenshot summary says current channel is 6, but it's 11.
(http://i.imgur.com/4ljnltq.png)
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Hmm, that link you attached is a post describing an issue with DVRs and the IPTV service behind an AT&T U-verse modem. I can ping my Pace modem's IP and configure it via the web interface. I don't have the IPTV service with U-verse, or issues with device connectivity.
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Maybe someone can review your router settings with you using Link> teamviewer (http://www.teamviewer.com) if your interested. Its safe and secure.
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This diagnostic utility doesn't show what the other WiFi neighbors are using...there any display for that possibly? InSSIDer shows what neighbors are using for channels. Can you post what InSSIDer results in?
The channels are shown but the image is truncated by the message board post. Right click on the image, view image to see it in its entirety (including channels).
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Maybe someone can review your router settings with you using Link> teamviewer (http://www.teamviewer.com) if your interested. Its safe and secure.
Sure, I'd be willing to review settings with a D-Link support rep.
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Duh, forgot about that. Ya, 11 is busy and wouldn't want to be on it.
Send me a PM with ID and PW. I can check it out now if you have time. If not give a date and time frame. Please be wired to the router with a PC.
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FurryNutz: Sent you a PM, going to review settings at some point. I'd appreciate it!
In the meantime, I haven't re-created my settings from scratch after I did a factory reset. I simply imported the settings from the file. Does recreating the settings from scratch really make a difference? Seems to me this if the backup settings file is corrupt, the restore process would break at some point. Recreating from scratch would be a major pain, as I have network filtering enabled, DHCP reservations on ~20 devices. Plus the other global settings.
I keep going back to a firmware bug with this issue... even if there's a Wifi interference issue in my case, it shouldn't cause the router to reboot itself. Perhaps the Wifi client device causing the issue is disconnected and subsequently reconnects to the router. But a total system shutdown seems to be firmware issue, i.e. the DIR 655 isn't failing gracefully, in software engineering lingo. Could also be a hardware issue with my router. Are there any diagnostic tools that I can run on my DIR 655 to verify that it's functioning properly?
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Please try a factory reset and then set up from scratch to see if the router keeps rebooting. There maybe a configuration issue or someone connected maybe causing the reboots...Will have to plan a time frame which we can review the router settings.
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I've disabled the QoS engine as recommended here http://superuser.com/questions/804545/d-link-dir-655-router-rebooting-itself-randomly (http://superuser.com/questions/804545/d-link-dir-655-router-rebooting-itself-randomly) and my DIR 655 has been up for over a week now (knock on wood)! This is the longest I've gone with a reboot since I started monitoring it several weeks ago.
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- What ISP Modem service link speeds UP and Down do you have?
Seems like the ISP may not be bridged? If so, QoS could have issues with a ISP modem/router combination. QoS works with out any issues if connected to a stand alone ISP modem...
Sounds like you found the fix for your configuration. ;)
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Of course as soon as I posted "it's resolved!" the router would reboot. I'm glad that it at least managed to stay running for a bit over a week (right at 8 days) since the last reboot.
With this new data point, what are the likely culprits? Still think it's signal interference?
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One way to find out would be to disable the 655s radio. Enable the Wifi radio on the ISP modem and test...Just run the 655 with out any wireless and see if wired connections remain and the router doesn't reboot...