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[TAZ427]

I have a DIR-655 Rev B1, FW 2.01 (I will probably upgrade the FW tonight to the latest.)

I have at least 20 items that connect wirelessly to this router (2 PCs, 2 Laptops, 2 Tivo Box, 3 Game Consoles, 3 Cell Phones, 2 Tablets, 2 TVs, Printer, AP Gateway, and some other projects)  It's been a solid connection to everything for the past couple of years.

I bought a new Dell Inspiron 15r SE laptop (uses the Intel Centrion Wireless-N 2230 Wifi Solution.)  After anywhere from 2 - 10 mins of browsing/watching a video/downloading files the access out to the internet simply stops. 

At this point I'm still connected wirelessly to the router, and if I go to the router address I still have access and can login and see the router settings.  I check and there's plenty of time left on the lease (days.)  Still not getting internet access.  Eventually my Laptop will disconnect and reconnect (or I do it manually.)  I've performed hard resets of the router, I've had my laptop Forget the network and then reconnect, etc.  Nothing has resolved it. 

I thought it may be my laptop, but I've taken it to Starbuck, Work, Neighbors WiFi, etc and I don't have any problems staying connected on their networks.

I've had Dell on the line, we connected hardwired, and there solution was to force forget and reconnect to the router, which worked for the 10min he was on the line with me, but then failed soon after, and back in the same connectivity hell 

At this point it's really hard to point my finger at either the router or the laptop, but I'm looking for some advice.

[FurryNutz]

Link>Welcome!

What region are you located?
Has a Factory Reset been performed?
Ensure the Laptop LAN and Wireless adapter drivers are up to date as well.

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.

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.
 

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 PC while testing.

Check cable between Modem and Router, swap out to be sure. Link> Cat6 is recommended.

Try setting Medium or Low power output settings and test again Under Advanced/Advanced Wireless.

If you choose to upgrade FW, please follow this:
FW Update Process
Do a factory reset, send the file, factory reset once more, then set up from scratch, do not load a saved configuration from file.

[TAZ427]

What region are you located? South (Texas)
Has a Factory Reset been performed? Nope, but that's something I could try.
Ensure the Laptop LAN and Wireless adapter drivers are up to date as well. Yes, first thing I did was confirm it had latest drivers.

What ISP Service do you have? Cable or DSL? Comcast Cable - That said no other equipment has issue and when connected to LAN from Router issue goes away.
What ISP Modem Mfr. and model # do you have? Motorola SB5101 - DOCSIS 2.0 cable modem.  Mine not Cable CO's.
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'll have to check when I get home but I'm fairly certain I've got it set to 1500.

I'll have to give the suggestions a try tonight when I get home. 

[TAZ427]

Disabling Traffic Shaping seems to have done the trick.  I've not had a drop w/ about 1hr worth of downloading of 1080p video's over YouTube, which I was getting drops in a couple mins before. 

[FurryNutz]

Glad you got it working well.
Enjjoy.