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Aspirant
Posts: 2
Registered: ‎2012-04-09

Re: Lost Internet Connection Issues with 3800

I am currently having a similar issue as described here. What's very frustrating is the router has had few to no connection problems until last night. Now it drops and reconnects without any visible reason. The strange thing is my wireless devices stay connected. For instance, right now my wired desktop can't "see" the router, but my laptop sitting on the desk next to it is connected, I using it to post to the forums.
From the laptop I can log into the router and see the connected status and everything works fine if I am using wireless, put sit at the wired desktop and it's spotty at best.
I have the most current firmware loaded and that didn't help.
Any and old help, suggestions would be greatly appreciated, I loved this router until last night.
Aspirant
Posts: 12
Registered: ‎2012-04-10

Re: Lost Internet Connection Issues with 3800

Well, I decided to upgrade to the latest V1.0.032 several days ago from V1.0.024.

Ever since then, my wireless printer Brother MFC-7840W would lose connection once a day. Also, I noticed my HP Touchpad loses connection as well. To resolve this, I would need to restart the 3800 router. Smiley Sad

I'm pretty much using default setting. It was working fine before with V1.0.024.

1. Does anyone know where and what I should check to find out the problem?
2. Is is possible for me to revert back to V1.0.024? And what are the procedure?

Thank you in advance,
Aspirant
Posts: 12
Registered: ‎2012-04-10

Re: Lost Internet Connection Issues with 3800

Thanks for the info.

I'm using your suggestion about inSSIDer software. It was pointing to AUTO channel. I have hard-coded a specific channel now. Let's see what happen. I'll report back with my result in a week or days.

higtone wrote:
The whole disconnect thing may have everything to do with how "noisy" your neighborhood is. Prior to updating my router to the 32 firmware, I was running version 24 without any major issues. The router had been running for 142 days straight and both wireless bands for around 65 days straight. I ran inSSIDer and adjusted my channel settings accordingly after the update (that means don't use the Auto for the 2.4GHz band). At the moment, my laptop can "see" 13 other networks, but the channel I am running now is not used by anyone else near me. I've got 2 Samsung LED TV's, a HP Printer, a Dell PC and laptop, a Wii, a Roku and a BlackBerry all running and streaming without disconnects.
Aspirant
Posts: 12
Registered: ‎2012-04-10

Re: Lost Internet Connection Issues with 3800

My update - still having issue. Today, I lost connection to the wireless printer again. It was working this morning. Also, I noticed that my laptop lost wireless connection and then it re-connect itself back again. But, my wireless printer won't re-connect back. Smiley Sad
Aspirant
Posts: 12
Registered: ‎2012-04-10

Re: Lost Internet Connection Issues with 3800

I believe I have solved my problem...everything is working now.
Aspirant
Posts: 2
Registered: ‎2012-04-09

Re: Lost Internet Connection Issues with 3800

Why am I not shocked that no one from Netgear has responded to my problem? I went and picked up another router of the same design and model, found it doing the same thing, took it back. Maybe another more responsive manufacturer is the answer since this crap isn't working right.
Aspirant
Posts: 5
Registered: ‎2012-03-28

Re: Lost Internet Connection Issues with 3800

MayMay wrote:
I believe I have solved my problem...everything is working now.


And what was your solution? After the .32 update, I ran solid for 2 weeks, but now I keep losing the connection to the DSL modem and have to reboot the 3800 to get it back.
Aspirant
Posts: 12
Registered: ‎2012-04-10

Re: Lost Internet Connection Issues with 3800

Well, I spoke too soon.

I'm still having problem Smiley Sad

It was working for several days, and then my printer and Touchpad would lose connection completely. In order for me to get it re-connected, I would need to reboot the router. It would work for about 1 day and I need to repeat the reboot the process again.

Well, I decided to use router option in scheduling a restart every morning at around 4AM. I thought it "help" for about 1 week. And then I noticed my printer was not connected during the day hours Smiley Sad So, the schedule reboot didn't help Smiley Sad

Next, I tried to change the channel from AUTO to a specific channel. It didn't work. I gave up after changing about 5 channel.

So now, I have decided to use the LAN setup and add it to the Reservation and see if that helps.

This really sucks...

SkiSmuggs wrote:
And what was your solution? After the .32 update, I ran solid for 2 weeks, but now I keep losing the connection to the DSL modem and have to reboot the 3800 to get it back.
Aspirant
Posts: 5
Registered: ‎2012-03-14

Re: Lost Internet Connection Issues with 3800

Check your logs to see if your getting the "ath: Failed to stop TX DMA" or similar messages in the router logs.

Odds are, there is an out of compliance device, that is causing the wireless driver to overload.

For me it was my Playbook after the 2.01 update. Firmwares .24, .25b, Openwrt Backfire final and trunk, as well as the ddwrt for 3800.

All of these had this issue for me.

As do mainstream Linux kernels below ?2.6.38? due to the Athros driver.

The .34 update fixed this for me, but I can still make it happen by having a few badly behaving devices next to the router.

( Ex: I could get my Playbook and the neighbor's rooted and modded Droid to cause the errors to re-occur if both attempted using the 2.4GHz at the same time )

Today, I wiped and reload on my Playbook.

Now I cannot make the Playbook cause the errors at all.

Check your logs, see if you can determine what device is causing the problems, then see if you can back up, and factory reset that device.

P.D.
Aspirant
Posts: 12
Registered: ‎2012-04-10

Re: Lost Internet Connection Issues with 3800

Paul Driver,

I don't see the entry like yours.

I see a lot of

[DHCP IP]
[DoS Attack: ACK Scan]
[WLAN access rejected: incorrect security]

And yes, I'm still having disconnect problem of my printer after a day of reboot.

I noticed that once I do a reboot, the Attached Devices in the Netgear Genie GUI, it shows about 7 wireless devices and 1 wired. Whenever I lose my printer and everything else, I would log back into the Genie GUI and I noticed that all my wireless connection is gone and it shows as 1 attached device and that's the wired connection.
Aspirant
Posts: 12
Registered: ‎2012-04-10

Re: Lost Internet Connection Issues with 3800

I contacted Netgear support and they sent me an email to reset everything and following their steps in changing several parameters. It hasn't been a full day yet without a connectivity lost...so let's see what happen in the week with my current setting. If all goes well, then I'm going to slowly make some changes that I want to do such as disabling the SID name from showing up around my neighborhood. Currently, it's visible.
Aspirant
Posts: 12
Registered: ‎2012-04-10

Re: Lost Internet Connection Issues with 3800

Update: Well, I come home and I noticed my printer went offline again. I logged into the Genie gui and noticed Attached Devices for all wireless connection are no longer showing up. It had 4 devices attached this morning. After a reboot of the Netgear router, the 4 devices show up in the Attached Devices.

I sent the update to support.

I can't be the only one with this bad experience.... Smiley Sad
Aspirant
Posts: 4
Registered: ‎2011-09-25

Re: Lost Internet Connection Issues with 3800

Another thing to try is to set a fixed channel for the router, instead of using 'auto' to select one. This fix worked for me this morning.

My symptoms: My music player and my server on a separate computer are both connected wirelessly to my router, and have worked fine for the last couple weeks. This morning, the music player said it couldn't find the server on my computer. The music player's networking setup checked out correctly, but it said it couldn't ping the computer, and the computer's networking seemed to be working too since it could reach the internet through the router. But for some reason, neither the computer nor the music player could see each other. The computer also did not show up on the router's 'attached devices', but the music player was there. I rebooted the computer and it re-connected to the router but still did not show up in the 'attached devices'. Then I changed the router channel setting from 'auto' to '9' and 'applied' it, suddenly all devices showed up and the server and music player could find each other.

I'm not exactly sure why this happens. It is not just the netgear router since it happened to me also with a linksys router. For some reason, there seems to be a mismatch sometimes between the channels that one device offers and another can receive. Someone in another forum suggested that it is because U.S. regulations limit devices to channel 1-11 but some other countries offer 13 or 14 channels. If the 'auto'-channel selector happens to switch to one of these extended channels, evidently some devices can find it but others can't. I don't know if this is actually the cause, but using a fixed channel solved my selective wireless dropout this morning.

Swimmer
Aspirant
Posts: 1
Registered: ‎2012-04-29

Re: Lost Internet Connection Issues with 3800

First, I'll confess to being a router idiot. That is, I know the most rudimentary things about it, but not the tweaks/fine tuning.

I just got the 3800 basically because A) our crappy Belkin died and B) I needed a router immediately and it's all I could locate. Setup went fine. So far it's running ok--except it drops connection on the Xbox every few minutes, which is REALLY annoying to the person playing the game(s). How do I get it to stop doing that??

I'm hoping I dont run into the have-to-reboot issues with this Netgear--it happened with our old Netgear router, which is why I went to Belkin but Belkin turned out to be worse. Sigh.:confused:
Aspirant
Posts: 12
Registered: ‎2012-04-10

Re: Lost Internet Connection Issues with 3800

I have been following Netgear support suggestion.

First, they had me reset everything and set the channel to 1. After 1 day, it lost connection. Similar to you, all my wireless devices did not show up in the Attached Devices. Usually, I have about 4 wireless attached to it at all time, including my wireless printer. After setting it to channel 1, it failed after one day. Netgear support suggested that I changed it to channel 9. It stays connected for about less than 2 days. Yesterday night, I noticed my printer was offline so I logged in to the Netgear Genie again and noticed all my wireless disappeared in Attached Devices.

For you, even if you changed it to channel 9, the question is...can it stay up for 1 week or 1 month?

For me, this all started when I updated to the latest firmware .32 and then .34. It was working fine at .24 as the wireless stay up for a month or more without any drop.

Now, if I want to use my wireless printer, I need to reboot my router. I'm currently using the wireless connection on my laptop, but it doesn't show up in the Attached Devices in Netgear Genie. If I want everything to show up, then I need to reboot the router. And then I have to repeat the process when I lose the wireless connection. Smiley Sad

I spoke to a friend who is using the Netgear 4500 and he has no issues with connection drops.

Swimmerbird123 wrote:
Another thing to try is to set a fixed channel for the router, instead of using 'auto' to select one. This fix worked for me this morning.

My symptoms: My music player and my server on a separate computer are both connected wirelessly to my router, and have worked fine for the last couple weeks. This morning, the music player said it couldn't find the server on my computer. The music player's networking setup checked out correctly, but it said it couldn't ping the computer, and the computer's networking seemed to be working too since it could reach the internet through the router. But for some reason, neither the computer nor the music player could see each other. The computer also did not show up on the router's 'attached devices', but the music player was there. I rebooted the computer and it re-connected to the router but still did not show up in the 'attached devices'. Then I changed the router channel setting from 'auto' to '9' and 'applied' it, suddenly all devices showed up and the server and music player could find each other.

I'm not exactly sure why this happens. It is not just the netgear router since it happened to me also with a linksys router. For some reason, there seems to be a mismatch sometimes between the channels that one device offers and another can receive. Someone in another forum suggested that it is because U.S. regulations limit devices to channel 1-11 but some other countries offer 13 or 14 channels. If the 'auto'-channel selector happens to switch to one of these extended channels, evidently some devices can find it but others can't. I don't know if this is actually the cause, but using a fixed channel solved my selective wireless dropout this morning.

Swimmer
Aspirant
Posts: 262
Registered: ‎2011-09-22

Re: Lost Internet Connection Issues with 3800

MayMay wrote:
For me, this all started when I updated to the latest firmware .32 and then .34. It was working fine at .24 as the wireless stay up for a month or more without any drop.

Why not flash back to the .24 firmware that worked well for you?
Highlighted
Aspirant
Posts: 12
Registered: ‎2012-04-10

Re: Lost Internet Connection Issues with 3800

I did...I gave up on the support...they couldn't help in resolving my issue.

I reverted back to .24 and it has been running for 2 days without any issues. I guess I won't benefit the latest changes... Whatever they did, affected my connection.


StratmanX wrote:
Why not flash back to the .24 firmware that worked well for you?
Aspirant
Posts: 2
Registered: ‎2012-05-06

Re: Lost Internet Connection Issues with 3800

I reverted back, also. The issue still exists.
Novice
Posts: 0
Registered: ‎2012-06-12

Re: Lost Internet Connection Issues with 3800

Just in case this may prove useful to someone else. About 6 weeks ago, I started having constant intermittent connection problems with my WNDR3800 with both Ethernet and Wireless connections. I tried reverting back from the .34 to the .24 firmware - no help. I then bypassed the router and was still having the intermittent connection problem with my Motorola SB6120 modem Ethernet to my Windows 7 PC. I then replaced the coax cable in my apartment, upgraded to a Motorola SB6121 modem, replaced the Ethernet cable from the modem to the PC, disabled the onboard Ethernet controller and installed a new PCI Ethernet adapter card... problem persisted. I then had Cox send out a field tech on a trouble call. The tech replaced the coax jumper cable from the Cox pedestal to my apartment coax line with new fittings... problem solved. I am back to using the WNDR3800 with firmware V1.0.0.34 with no problem for 2 weeks now. I know each case is unique, but in my case... turns out the first trouble shooting step should have been to have Cox send out a field tech.
Novice
Posts: 0
Registered: ‎2012-06-12

Re: Lost Internet Connection Issues with 3800

This may seem ridiculously obvious, but after EXTENSIVE trouble shooting on my own with intermittent Internet connection problems with my WNDR3800, I finally had Cox send out one of their field techs on a trouble call. The tech replaced the coax jumper cable from the Cox pedestal to my apartment coax line with new fittings. Problem solved! I have been up and running for 2 weeks with the WNDR3800 using firmware version V1.0.0.34. I know each case is unique, but if anyone out there is having intermittent connection problems and have not yet had the ISP send out a tech, I recommend doing so.
Aspirant
Posts: 2
Registered: ‎2012-08-07

Re: Lost Internet Connection Issues with 3800

I am pretty much having the same problem and happens more frequently when ever there is a bit of load i.e. have Skype voice call or use netflix - it is sure to go down in few minutes. not able to use skype puts be in very nasty situations.
Aspirant
Posts: 3
Registered: ‎2012-09-04

Re: Lost Internet Connection Issues with 3800

I have been having similar issues as posted by Satish71 -
Mostly occurs after heavy internet use like Netflix
Done the following steps
1) Have changed my Comcast Modem - Issues Still persists
2) Replaced back my old DLINK 655 router - So far no issues - This mostly eliminates the provider

I like the range and wireless connectivity of the WNDR 3800 router and would like to see if there is any resolution
I believe I have the latest firmware upgrades - Any suggestions ?
Aspirant
Posts: 3
Registered: ‎2012-09-04

Re: Lost Internet Connection Issues with 3800

msaub wrote:
I have been having similar issues as posted by Satish71 -
Mostly occurs after heavy internet use like Netflix
Done the following steps
1) Have changed my Comcast Modem - Issues Still persists
2) Replaced back my old DLINK 655 router - So far no issues - This mostly eliminates the provider

I like the range and wireless connectivity of the WNDR 3800 router and would like to see if there is any resolution
I believe I have the latest firmware upgrades - Any suggestions ?

To add - The link to the WNDR 3800 router seems to be fine - The wireless devices are also connected - It is the INTERNET connection which has dropped.

I am going to try moving it from the Automatic channel selection to fixed channel selection
Aspirant
Posts: 1
Registered: ‎2012-09-08

Re: Lost Internet Connection Issues with 3800

I am having the same problems - very frustrating. Did changing to fixed channel solve the problem?
Aspirant
Posts: 47
Registered: ‎2012-09-07

Re: Lost Internet Connection Issues with 3800

I have issues with this router from the start. I should have taken it back when I had the opportunity. Lost WiFi with new firmware. Then I reverted to 1.0.0.38 and now experience dropped internet. The PC's and devices connect to router but occasionally I lose internet. Tried all the basic steps to fix. Including reset router, restarted modem and Router plus all devices. Deleted connection profiles for WiFi and reconnected each device. I basically have concluded that the router is junk and maybe Netgear is trying to patch their way through the problem with firmware updates which do nothing?? What is working is the 5Ghz band which does not experience any of the connection drops or the internet drops. So I assume the glitch or defect is in the 2.4Ghz band.
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