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[rduram]

Hi - I work from home and use my 836L with ATT U-Verse 45 Mbps service.  The 836L is hardwired to the ATT RG router and I have the wireless feature turned off on the RG.  I also have the WAN IP Pass-through feature set up on the ATT RG so that the 836L gets the WAN DHCP address directly from the RG (bridged).  My work computer is hard wired to the 836L and when I stream either music or videos, there is a constant clipping or stuttering throughout the song or video.  I do open an SSL VPN to my company, but the streaming issue happens whether I am on the VPN or not.  I also have experienced MS Lync connection dropping and reconnecting frequently when connected through the VPN as well as some of my SSH sessions that I run to our data center servers.

I have gone through the router setup guide that FurryNuts provided and still seem to have issues.  I am running firmware version 1.04 , 11, Apr, 2013. 

What are some steps that I can take to troubleshoot or remedy this issue?
Thanks

[FurryNutz]

Link>Welcome!

• What Hardware version is your router? Look at sticker under the router case.
• Link>What Firmware version is currently loaded? Found on the routers web page under status.
• What region are you located?
• Has a Factory Reset been performed?
• Was a Factory Reset performed before and after any firmware updates then set up from scratch?

>FW Update Process

• Was the router working before any firmware updates?

Does the PC stream correctly when directly connected to the ISP modem?

Internet Service Provider and Modem Configurations

• What ISP Modem service link speeds UP and Down do you have?
• Check cable between Modem and Router, swap out to be sure. Link> Cat6 is recommended.
• Check ISP MTU requirements, Cable is usually 1500, DSL is around 1492 down to 1472. Call the ISP and ask. Link>Checking MTU Values

I recommend that you have your ISP check the cabling going to the ISP modem, check signal levels going to the ISP modem. For DSL or Fiber service lines, ensure that the ISP is using good working phone or cable lines to the DSL modem and that the phone lines are filtered correctly. For cable Internet, RG-6 coaxial cable is needed, not RG-59. Check for t.v. line splitters and remove them as they can introduce noise on the line and lower the signal going to the ISP modem. I recommend having the ISP service physically check the lines going from the out side to the ISP modem. Connecting to the ISP modem could result in a false positive as the signal to the modem could be just enough to that point then adding on a router, could see problems. The router operation is dependent upon getting good data flow from the ISP modem and the modem is dependent upon getting good signal from the ISP Service.

Router and Wired Configurations
Some things to try: - Log into the routers web page at 192.168.0.1. Use IE, Opera or FF to manage the router. Besure to log into the Admin account on the router.

• Turn off TrueGigaBit Routing under Setup/Internet/Manual for those routers that have this feature for testing.
• 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 or Disable Use Unicasting (compatibility for some ISP DHCP Servers) and test under Setup/Internet/Manual. Disable may help with speed performance on higher speed ISP services.
• Turn OFF DNS Relay  under Setup/Networking. Link>Finding Faster DNS Addresses using Name Bench and input new DNS addresses under Setup/Internet/Manual.
• 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 and maintain consistency for applications that need to connect as well as mapped drives.
• Ensure devices are set to auto obtain an IP address.
• If IPv6 is an option on the router, select Local Connection Only under Setup/IPv6.
• Set Firewall settings to Endpoint Independent for TCP and UDP under Advanced/Firewall. Enable or Disable SPI to test.
• 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. The DST setting is only needed in the NA region. Tools/Time.

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

PC 3rd Party Security Software Configurations

• Turn off all anti virus and firewall programs on PC while testing. 3rd party firewalls are not generally needed when using routers as they are effective on blocking malicious inbound traffic.
• Turn off all devices accept for one wired LAN PC while testing.
• Disable any downloading client software managers, i.e. Torrents or similar.

Please give feedback to the suggestions and questions presented so we can get a better idea of what is going on and we can give better suggestions.

[FurryNutz]

Any status on this? 

Hi - I work from home and use my 836L with ATT U-Verse 45 Mbps service.  The 836L is hardwired to the ATT RG router and I have the wireless feature turned off on the RG.  I also have the WAN IP Pass-through feature set up on the ATT RG so that the 836L gets the WAN DHCP address directly from the RG (bridged).  My work computer is hard wired to the 836L and when I stream either music or videos, there is a constant clipping or stuttering throughout the song or video.  I do open an SSL VPN to my company, but the streaming issue happens whether I am on the VPN or not.  I also have experienced MS Lync connection dropping and reconnecting frequently when connected through the VPN as well as some of my SSH sessions that I run to our data center servers.

I have gone through the router setup guide that FurryNuts provided and still seem to have issues.  I am running firmware version 1.04 , 11, Apr, 2013. 

What are some steps that I can take to troubleshoot or remedy this issue?
Thanks