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[mudthirsty]

Just looking for help here.  I was told to check the forums, and I couldn't find a good thread to start, so I've started my own.

I've had a d-link DIR-835 for about 2 months now, and everything was running great.  However, a few days ago I noticed there was no internet in the wireless router.  (Yellow flashing globe). 

My internet works from a cable into my modem, as my pppoe was setup in the modem, not the router.  What's the first thing I should be checking?

[FurryNutz]

Link>Welcome!

What Hardware version is your router? Look at sticker under router.
Link>What Firmware version is currently loaded? Found on routers web page under status.
What region are you located?
Are you wired or wireless connected to the router?
Has a Factory Reset been performed?

What ISP Service do you have? Cable or DSL?
What ISP Modem Mfr. and model # do you have?
Check ISP MTU requirements, Cable is usually 1500, DSL is around 1492 down to 1472. Call the ISP and ask. Link>Checking MTU Values
For DSL/PPPoE connections on the router, ensure that "Always ON" option is enabled.

Reason for the Yellow Globe is that it has probably lost communications with the modem or the modem has lost communication with the ISP service. Make sure your ISP service to the ISP modem has a good clean signal and is to spec for the ISP modem. Have the ISP physically check the cables going to the modem. Remove any t.v. line splitters if your using cable ISP services as these can cause noise and interferences and reduce the signal. For DSL ISP phone lines, ensure the cables are good and filtered correctly. Have the ISP check to make sure the phone lines are set up well and there isn't any cross talk problems on the line.


Some things to try: - Log into the routers web page at 192.168.0.1. Use IE, Opera or FF to manage the router.
Turn off ALL QoS or Disable Traffic Shaping (DIR only) GameFuel (DGL only and if ON.) options. Advanced/QoS or Gamefuel.
Turn off Advanced DNS Services if you have this option under Setup/Internet/Manual or under Setup/PARENTAL CONTROL/Set to>None: Static IP or Obtain Automatically From ISP.
Enable Use Unicasting (compatibility for some ISP DHCP Servers) under Setup/Internet/Manual.
Turn on DNS Relay under Setup/Networking. Link>Finding Faster DNS Addresses using Name Bench
Setup DHCP reserved IP addresses for all devices ON the router. Setup/Networking. This ensures each devices gets its own IP address when turned on and connected, eliminates IP address conflicts and helps in troubleshooting.
Ensure devices are set to auto obtain an IP address.
If IPv6 is an option on the router, select Local Connection Only or Disable IPv6 options under Setup/IPv6.
Set Firewall settings to Endpoint Independent for TCP and UDP under Advanced/Firewall.
Enable uPnP and Multi-cast Streaming under Advanced/Networking. Disable uPnP for testing Port Forwarding rules. Enable IPv6 Multi-cast Streaming for routers that have a Media Server option. Disable IPv6 Multi-cast Streaming if IPv6 or Media Server is not being used.
Turn off WISH, and WPS under Advanced.
WAN Port Speed set to Auto or specific speed? Some newer ISP modems support 1000Mb so manually setting to Gb speeds can be supported by the router. Advanced/Advanced Networking/WAN Port Speed
Set current Time Zone, Date and Time. Use an NTP Server feature. Tools/Time.

[mudthirsty]

Link>Welcome!

What Hardware version is your router? Look at sticker under router.
DIR-835A1

Link>What Firmware version is currently loaded? Found on routers web page under status. A1

What region are you located? Oshawa, Ontario
Are you wired or wireless connected to the router? Wireless
Has a Factory Reset been performed? Yes

What ISP Service do you have? Cable or DSL? Telnet Communications
What ISP Modem Mfr. and model # do you have? TP-Link, TD-8840T

Check ISP MTU requirements, Cable is usually 1500, DSL is around 1492 down to 1472. Call the ISP and ask. Link>Checking MTU Values
For DSL/PPPoE connections on the router, ensure that "Always ON" option is enabled.
It is ON.

Reason for the Yellow Globe is that it has probably lost communications with the modem or the modem has lost communication with the ISP service. Make sure your ISP service to the ISP modem has a good clean signal and is to spec for the ISP modem. Have the ISP physically check the cables going to the modem. Remove any t.v. line splitters if your using cable ISP services as these can cause noise and interferences and reduce the signal. For DSL ISP phone lines, ensure the cables are good and filtered correctly. Have the ISP check to make sure the phone lines are set up well and there isn't any cross talk problems on the line.

I have tried different cables, and we do not use the land line for phone at all, just internet.

Some things to try: - Log into the routers web page at 192.168.0.1. Use IE, Opera or FF to manage the router.
Turn off ALL QoS or Disable Traffic Shaping (DIR only) GameFuel (DGL only and if ON.) options. Advanced/QoS or Gamefuel.
Turn off Advanced DNS Services if you have this option under Setup/Internet/Manual or under Setup/PARENTAL CONTROL/Set to>None: Static IP or Obtain Automatically From ISP.
Enable Use Unicasting (compatibility for some ISP DHCP Servers) under Setup/Internet/Manual.
Turn on DNS Relay under Setup/Networking. Link>Finding Faster DNS Addresses using Name Bench
Setup DHCP reserved IP addresses for all devices ON the router. Setup/Networking. This ensures each devices gets its own IP address when turned on and connected, eliminates IP address conflicts and helps in troubleshooting.
Ensure devices are set to auto obtain an IP address.
If IPv6 is an option on the router, select Local Connection Only or Disable IPv6 options under Setup/IPv6.
Set Firewall settings to Endpoint Independent for TCP and UDP under Advanced/Firewall.
Enable uPnP and Multi-cast Streaming under Advanced/Networking. Disable uPnP for testing Port Forwarding rules. Enable IPv6 Multi-cast Streaming for routers that have a Media Server option. Disable IPv6 Multi-cast Streaming if IPv6 or Media Server is not being used.
Turn off WISH, and WPS under Advanced.
WAN Port Speed set to Auto or specific speed? Some newer ISP modems support 1000Mb so manually setting to Gb speeds can be supported by the router. Advanced/Advanced Networking/WAN Port Speed
Set current Time Zone, Date and Time. Use an NTP Server feature. Tools/Time.

Thanks, I just changed all the settings to match above.  Only thing I couldn't find was the WISH, and WPS under Advanced, and the WAN Port speed.

Still no internet. I appreciate your help with this!

[FurryNutz]

Is the Internet globe on the front of the 835 yellow. I presume it is. If it is, means that the ISP modem or router is not set up correctly.

Is this your ISP modem?
http://www.tp-link.com/en/products/details/?model=TD-8840T
If so, then this modem has a built in router already.
If this 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>Double NAT and How NAT Works.
To tell if the modem is bridged or not, look at the DIR-835 web page, Status/Device Info/Wan Section, if there is a 192.168.0.# address in the WAN IP address field, then the modem is not bridged.
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.

I would contact your ISP provider and get help on setting up the ISP modem in bridged mode or use the ISP modems DMZ and put the IP address the DIR-835 gets from the ISP modem in the DMZ.

[mudthirsty]

Yes, that is my modem!  And yes, the globe is yellow and flashing on the 835.  After working on a few things last night, my internet on my modem was no longer working either, which makes me think it was a problem with the modem.  I just bought a new modem, and will hook that up tonight.  I will let you know how the 835 does with it.  Thanks!

[FurryNutz]

Ensure the phone lines are set up well, signal to the ISP modem is good and the phone lines are filtered correclty. Ask the ISP to help you with this. Get a new modem too if you can.  Keep us posted.

[mudthirsty]

I installed a brand new modem out of the box.  Setup pppoe on the modem.  I cannot get the internet to work on the modem.  I called my ISP, and they told me to setup a new network connection via my control panel, and to plug my computer directly into the modem and to forget about the router for now.  I entered my info and made a new network connection, clicked connect.  And it connected, and the internet works great.  However, the modem internet light is still off.  So I have internet on one computer.  My old modem had four outputs, so I re-installed my old modem, and connected through my network connections, and that works as well.  I have a second computer in the next room, so I ran a cable from the modem to the next room, and the internet didn't work.  So I had to setup a new connection on that computer as well, which worked.  This doesn't seem like the correct way to do things, and my ISP pretty much said "well, your internet is working, everything else is not my problem". 

[FurryNutz]

Of course.
Did you get the same model modem or different?

If the PPPoE is on the modem then to use the 835, it sounds like you'll need to install a external GB network switch to allow for more LAN ports.

What is the model number of the new modem? I'll look up some info on it. Can the modem's web page be accessed?

If we can access the modem, and bridge the modem, and if you have the PPPoE account Name and Pw info, then we can attempt to bridge the ISP modem and put the PPPoE info on the DIR-835. Or use the DMZ on the modem if it's configurable.

[mudthirsty]

The new modem I purchased is a TP-LINK TD-8817ADSL2+ ETHERNET/USB MODEM ROUTER 1PORT & 1USB PORT.

However, I have switched back to my old modem because it has four ports, and its a TP-LINK SOHO TD-8840T, ADSL2+ Modem Router - 4-port 10/100.

Here's a link to their website. 
http://www.tp-link.com/en/products/details/?model=td-8840t

[FurryNutz]

Can you access the modems web page?

[mudthirsty]

Sorry, yes I can.

[FurryNutz]

I see on page 24-25, there is a bridge option under WAN Service Setup.
http://www.tp-link.com/Resources/document/TD-8840T_V4_User_Guide.pdf

You could attempt to give this a try. If you can get the modem into bridge mode. Save settings. Turn OFF the modem. Connect your PC to the DIR-835 and ensure the Setup/Internet/Manual/Connection Type is set for PPPoE. Input your PPPoE information into this section, user name and PW. Ensure that "Always On" is selected. Save Settings. Power OFF the DIR-835. Leave your PC connected to the 835. Connect a good working LAN cable from the ISP modem to the WAN port on the 835. Check to make sure the correct port is used if the modem is in bridge mode. I presume #1 should be used. Power ON the modem and let it sync and come to ready. Then power ON the DIR-835. Watch the internet globe. If everything is done right, the globe should turn Green on the 835.

Keep us posted.

[FurryNutz]

If we can't get the bridge mode to work, I see there is a DMZ option on the ISP modem that we can try next.  

Pg 39 on the PDF.

[mudthirsty]

Did everything you said.  No go.  I can't connect to my 835 with a cable, just by wi-fi.  I think all the ports are shot.  But, still no direct internet from the modem.  Unless I setup the network connection via the control panel, and ask Windows to dial in. 

[FurryNutz]

Can you connect to the DIR-835 with a LAN cable and PC and see the routers web page? Ensure you are using a good working LAN cable, swap out for a good known working cable. You can ping the routers IP address using a command line.

What is the default IP address of the ISP modem? I should be 192.168.1.1..just to confirm with you.

Ports don't usually go bad.

You are setting the PC's networking to Auto Obtain IP addressing so that it gets the IP address from the 835 right? Test with a different PC to be sure if you can.

Hmmm...well, you could set up the DIR to connect to the ISP modem and see if the ISP Modem is seeing the 835 and handing out a IP address. It should see the router and give a IP address.

Maybe we can use teamviewer and I can remote in and review your settings with you if your interested...