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[MikeP]

I have been running into a very strange problem that I cant seem to figure out and I was hoping I could get some help here.

My current setup is Comcast Modem -> DIR-655 (Wireless Disabled) -> DAP-1522 (Wired to 655).  I have one desktop wired into the 655 and then a few wireless devices (iPhones, iPad, XBOXs).  When my wife turns on her HP laptop and connects to the wireless all HTTP to the internet drops.  My VPN connection on my work laptop stays up but nothing trying to get out via HTTP works.  I have to reboot everything (sometimes more then once) and it will come back up.  I still have access to both devices via HTTP including a local HP printer, just cant get out to the internet.

I have tried to reserve her laptop and other devices an IP and that has not helped.  I also confirmed that I have the latest code on both devices (the 655 is a rev b).

Any ideas?

Mike

[FurryNutz]

Link>Welcome!

• 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?

Internet Service Provider and Modem Configurations

• What ISP Service do you have? Cable or DSL?
• What ISP Modem Mfr. and model # do you have?
• What ISP Modem service link speeds UP and Down 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.

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 ALL QoS or Disable Traffic Shaping (DIR only) GameFuel (DGL only and if ON.) options, Advanced/QoS.
• 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 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 or Disable IPv6 options 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. Tools/Time.
• Check cable between Modem and Router, swap out to be sure. Link> Cat6 is recommended.

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."
6" minimum safe distance between devices.

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.

[MikeP]

    What Firmware version is currently loaded? DIR-655 is at 2.11NA DAP-1522 is at 1.41
    What region are you located?  US
    Has a Factory Reset been performed?  No I did not try this
    Was a Factory Reset performed before and after any firmware updates then set up from scratch?  No it was just upgraded and loaded the saved config.  This is something I can try.

FW Update Process

    Was the router working before any firmware updates?  I think so, but she just got this new laptop so I cant really say it was a firmware update that caused it.  It was upgraded a few months ago.


Internet Service Provider and Modem Configurations

    What ISP Service do you have? Cable or DSL?  Cable
    What ISP Modem Mfr. and model # do you have?  Motorola, not sure of the model
    What ISP Modem service link speeds UP and Down do you have?  Comcast
    Check ISP MTU requirements, Cable is usually 1500, DSL is around 1492 down to 1472. Call the ISP and ask. Link>Checking MTU Values


Maybe I should try to reset to factory and re-set everything up.

[FurryNutz]

Give the reset a try and also see if you can find out the model of the ISP Modem...