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[Bocko57]

My modem is a Motorola SB5101.  FurryNutz, I am not sure if RR supports DOCSIS 3.  I will look into it and see if TWC (RR) has an upgrade modem to the SB 6120.

Thanks!

[FurryNutz]

Ok, the SB 5100 series is mostly an average low end cable modem. Pretty good here and there. Seen some issues with it.

[Bocko57]

In my location, RR is running DOCSIS 2.0.

[FurryNutz]

I had great luck in running a Linksys cable modem for DOCSIS 2.0. Made the Switch to Motorola when the ISP supported v3.0.

[troyatx]

Hey guys,

Having the same issue here, random wired connection drops. I'll restart my cable modem and router and everything's back up. Whenever it goes down I'm still able to access the router menu. From the router menu I can ping out and get a normal response. But when I try from my computer I get nothing. I'm using stock settings on latest firmware. Thought I'd try and troubleshoot it for a while, but now I'm out of my 30 day return and hope I don't have to deal with DLink customer service so I don't have to play 20 questions to exchange it.

[FurryNutz]

What ISP service do you have? Cable or DSL?
What ISP modem do you have? Stand alone or built in router?

Ensure cable between modem and router is in good condition and shortest length is preferred.
Turn off QoS?
Turn off Advanced DNS services. Enable DNS Relay. Ensure DNS ip addresses are being auto filled in under setup/internet/manual.

I would set up static IP addresses for all connected devices on the router. Ensure devices are set up for auto obtain ip addressing.
Set firewall settings to Endpoint Independent for TCP and UDP.

Let us know how it goes.

[troyatx]

Road Runner, cable, modem is Cisco 2100

Updated all the settings and it's running great so far. I'll keep you posted. Thanks!

[FurryNutz]

Good, keep us posted.

Road Runner, cable, modem is Cisco 2100

Updated all the settings and it's running great so far. I'll keep you posted. Thanks!

[dyonehara]

I'd like to chime in as well in saying I've got a DIR-655 and am using Road Runner service. I'm running several wireless laptops, phones, and a printer off of the device along with three wired desktops. The issue's become persistently worse over the past week or so to the point of the internet becoming completely unusable.

It's not the modem as I've connected a computer directly to it with no issues. The problem arises when the router comes into play. It sounds like some sort of conflict with the service provider and this specific router. I'm going to purchase a Linksys later today to see if this router is the problem.

Thank you to everyone who has posted up information so far!

[voidv2]

I also have this seemingly problematic combination of router and modem/isp. What I have noticed is that when I change settings and the router reboots I get an IP conflict randomly when it tries to reconnect the wireless. Don't know if that helps us get any closer to solving this mystery... but it's something to look into.

[FurryNutz]

One other troubleshooting possibility here, if you have friends, neighbors or family near by with the same or different ISPs, take this router to there house and try it out. Could even swap it for theres for a short term test, couple of days. See if this problem tracks and exhibits on there systems. Yes, trying a different brand router is another option as well. Please let us know what you find out.

[voidv2]

I had a DIR-615 right before this one connected to the same modem with 0 issues for almost a year.

[Stress]

I seem to have fixed the issue of randomly dropped internet connections for me.  I noticed that on the manual internet settings page of the router set up, the Primary and Secondary DNS addresses were 0.0.0.0.  I set them to the DNS entries for OpenDNS (opendns.com).  I don't know why they were blank and for how long.

[FurryNutz]

You can use your ISP DNS addresses as well. Glad you were able to fix it.

[Stress]

You can use your ISP DNS addresses as well. Glad you were able to fix it.

Thank you for your help on this issue.  You reminded people several times on this thread to check DNS entries.  I finally listened.      Anyway, I thought the DNS entries were supposed to be auto-filled.  I don't know why I had to manually set them.