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[ekms]

I am having the exact same problem with my DIR-655. Internet would intermittenly disconnect and then come back online again. MSN and ping in CMD would work continuously. Funny thing this applies randomly, sometimes all the computers can't go on the internet (wifi or w/o wifi), sometimes only one of them won't work. Rebooting the router through control panel sometimes fixes the problem. Interestingly I am also using Time Warner but I am in SoCal area.

Last time I checked (earlier today) I could not ping in CMD when these outages would occur. Are your modem and router lights still all show signs of available internet access when this happens? I was recommended to call Time Warner and tell them to disable IP Flood Protection which you can try if you have access to your modem which seems to cause symptoms similar to ours. I am currently on my old Belkin router after trying out all the suggested solutions and nothing so far has worked permanently. I will report back on how the Belkin holds up in the WiFi area.

[FurryNutz]

For those of you on cable and or DSL, I would make sure the that lines coming to the house or apt are in good condition. For those on Cable, make sure that the line doesn't have any TV cable splitters on the line or if you have to have them, make it as few as possible or just one good one. Having splitters on the line will lower the signal going to the ISP modem.

[ekms]

So far the Belkin router seems 'ok'. There are times when the internet would slow down and behave similar to the DIR-655 outages and if I try to ping in CMD 25-50% of the 4 packets will drop and then after about 30seconds to a minute it will go back to normal. It's similar to my DIR-655 issue but not nearly as bad as the DIR-655 outage would last anywhere from 5-15minutes and occurs much more frequently. The cable wire running down my building seems in undamaged condition and I do not have any cable splitters on my end. So I am unsure now whether this problem originates from the modem or the router(s).

[FurryNutz]

You are seeing some slowdowns. Might indicate a problem up stream from the modem or modem itself.
One thing you can do if you have a neighbor or friend, take the 655 to there place and hook it up and see if it exhibits the same issue.

[ekms]

Don't know anybody else within walking distance that has ISP since most people live a 30-45min car ride away from me.

edit: doing some digging through the forums this problem I am having seems to be a common occurrence, has D-link ever made a statement? I really hate to feel like I paid so much money for a 'premium' router when it's plagued with so many problems and complaints.

[Hard Harry]

Is there a way to check the modem log through the d-link user page? I ask this because Time Warner does not allow users to access the Wideband docsis 3.0 modem. I have tried multiple channels but will give your other suggestions a go. And is it ever advisable set the channel settings to auto?

So as I understand it, when the problem occurs, all traffic on wired is fine, and all traffic OTHER then new web traffic on wireless is fine? My first guess is its WISH bombing out on you. That prioritized wireless traffic based on traffic type. So if you have some heavy skype or streaming traffic, it might lower priority on port 80 below the time out threshold of your browser. Try disabling it.

Point number two, the SB6580 isn't just a modem router combo like a typical ADSL unit, it has full wireless functions too. Even if you have it set it to bridge mode, I believe the wireless will still broadcast signal. Check the wireless light on the front. Is it on or flashing? Also, more info here.

[ekms]

So as I understand it, when the problem occurs, all traffic on wired is fine, and all traffic OTHER then new web traffic on wireless is fine? My first guess is its WISH bombing out on you. That prioritized wireless traffic based on traffic type. So if you have some heavy skype or streaming traffic, it might lower priority on port 80 below the time out threshold of your browser. Try disabling it.

Point number two, the SB6580 isn't just a modem router combo like a typical ADSL unit, it has full wireless functions too. Even if you have it set it to bridge mode, I believe the wireless will still broadcast signal. Check the wireless light on the front. Is it on or flashing? Also, more info here.

The wireless on my modem is turned off the light isn't blue and the SSID broadcast is not found (I have no access to the SSID, if you stick to the default TW Wideband Modem you are stuck with whatever SSID/WEP they give you). And to clarify, when I connect a wireless pc/mac to the network after a few minutes of browsing all new traffic stops on wireless and wired, the only computer connected via ethernet stops responding to webpages so pretty much new traffic on the router stops.

[ekms]

After using my Belkin router for about a day now I think I can safely say that the problem of webpages loading is not my modem but the DIR-655 router. It hasn't even been 2 months and it has been such a huge headache.

[Hard Harry]

I would say turn off wish here and then give it a day. If that doesn't work, try this:

Use MS IE for this
Setup > Wireless Settings > Manual Wireless Network Setup > Alt+V and then go down to Style > No style > Change Quality of Service to "Minimum"

That will turn off auto-classification of the bandwidth between wireless, and stop the router from sucking bandwidth from wired for wireless.

Also, what firmware are you using? I can check the release notes.

[ekms]

I don't think I've ever had WISH enabled, and I don't see the options for the MS IE SETUP > ...
I am on IE9, where would I find the setup options under IE9? I only see Internet Options. I am currently using the latest firmware for Revision: B1 2.03NA

Edit: Just switched back to my D-link for a few minutes and within moments of connecting my laptop to the network all webpages stopped loading. It wasn't even under any heavy traffic. I'm back on my Belkin now

[ashleusa]

I too am I having the exact same issue as the OP. My ISP is Cox Communications in Florida. I've yet to ask them to check our lines, but a check about a year ago showed that they were fine.

I've had this router, DIR-655 | Hardware Version: B1 | Firmware: 2.00NA, for about 6 months now. The problem has only showed itself for about 2 months - which I find very strange.

Anyways, I tried changing the settings recommended here:

Ensure DNS IP addresses are being filled in under Setup/Internet/Manual?
Turn off QoS options.
Turn off Advanced DNS Services if you have this option under Setup/Internet/Manual.
Turn on DNS Relay under Setup/Networking.
Setup DHCP reserved IP addresses for all devices on the router.
Ensure devices are set to auto obtain an IP address.
Set Firewall settings to Endpoint Independent for TCP and UDP.

All devices on my network are connected wireless. This includes various makes and OS of PC, a mac, a printer (Brother), and occasionally a Droid phone and iPod Touch.

I'm really running out of options here. The internet connection through the modem (Motorola) is fine. I ran a test of it overnight by auto refreshing various webpages.

One note I will also add is that you don't necessarily have to be using Skype, AIM, MSN, etc. for this problem to occur. Just casual web browsing effects it.

I've witnessed the problem when I'm the only person on the network. I've witnessed other people on my network encounter the problem regardless of who's computer is on at the time. The only device that is always on is the printer - I'm tempted to remove it from the network for a day to see if that resolves the problem.

On a side note: The time never stays correct on the router. I've synced it to my computer time and tried an NTP server... I don't know if this could be a problem but it makes the logs hard to follow.

Note: I am a total router newbie. Please be nice and explain what to change thoroughly to me. All help is appreciated!

Thanks in advance.

[FurryNutz]

What wireless modes are you using?
Try single mode G or mixed G and N?
What security mode are you using? WEP, WPA or WPA2? Preferred is WPA2 and Cipher type to AES only if your device support this. If not try Auto TPIK and AES.

I too am I having the exact same issue as the OP. My ISP is Cox Communications in Florida. I've yet to ask them to check our lines, but a check about a year ago showed that they were fine.

I've had this router, DIR-655 | Hardware Version: B1 | Firmware: 2.00NA, for about 6 months now. The problem has only showed itself for about 2 months - which I find very strange.

Anyways, I tried changing the settings recommended here:

All devices on my network are connected wireless. This includes various makes and OS of PC, a mac, a printer (Brother), and occasionally a Droid phone and iPod Touch.

I'm really running out of options here. The internet connection through the modem (Motorola) is fine. I ran a test of it overnight by auto refreshing various webpages.

One note I will also add is that you don't necessarily have to be using Skype, AIM, MSN, etc. for this problem to occur. Just casual web browsing effects it.

I've witnessed the problem when I'm the only person on the network. I've witnessed other people on my network encounter the problem regardless of who's computer is on at the time. The only device that is always on is the printer - I'm tempted to remove it from the network for a day to see if that resolves the problem.

On a side note: The time never stays correct on the router. I've synced it to my computer time and tried an NTP server... I don't know if this could be a problem but it makes the logs hard to follow.

Note: I am a total router newbie. Please be nice and explain what to change thoroughly to me. All help is appreciated!

Thanks in advance.

[ebinsd]

For what it's worth....just so you guys don't think you're crazy....I'm encountering the exact same issue down in San Diego.  Worked fine for three months or so, now I lose connection for 10 minutes or so every half hour or so.  I'll keep checking in to see what you guys discover.....

[ekms]

I gave up after trying multiple forums and multiple suggestions. I'm going to RMA the DIR-655 and already have bought a Linksys E2000 to replace it. If the replacement DIR-655 is in working shape I might use it for a access point but my 6 year old Belkin router has double the range of the DIR-655 which is just sad. Think this will be it for me and purchasing D-link products.

[ashleusa]

What wireless modes are you using?
I was using b, g, and n. I think an old laptop we had still was using b but we have since given that computer away. I'll try switching it to mixed g and n.

What security mode are you using? WEP, WPA or WPA2? Preferred is WPA2 and Cipher type to AES only if your device support this. If not try Auto TPIK and AES.
WPA TPIK and AES

I'm starting to agree with the OP:

I gave up after trying multiple forums and multiple suggestions. I'm going to RMA the DIR-655 and already have bought a Linksys E2000 to replace it. If the replacement DIR-655 is in working shape I might use it for a access point but my 6 year old Belkin router has double the range of the DIR-655 which is just sad. Think this will be it for me and purchasing D-link products.

For a device that worked amazingly for 4 months only to become a pain, it doesn't add up. Our old router lasted 2 years before it decided it couldn't handle Skype video chat. I feel the only solution to this is a replacement. /:

I may try completely redoing the wireless network with WPA2 and AES (only).

A friend also suggested Port Forwarding to my ISP for each device on the network. I've yet to try this but what's the point of all this hassle if it worked fine for 4 months with me setting up the network, securing it, and walking away without changing anything else? Sounds more like the router is a piece of trash than any setting I can configure.