Massive slow down with older WRT54GL

So I've been using the router for a couple years now and it has always been fine and provided me a nice connection. I am using roadrunner cable internet. Until recently I haven't had any problems getting good speeds wirelessly and wired throughout my house. Now I get super slow connections in all instances. Is my router simply too old or are my settings mucked up. I know that I haven't set up my security correctly on the modem and need advice on how to do so but I don't believe that is the cause of the slow down. Any help is greatly appreciated.
Message Edited by lukensds on 12-29-2009 06:11 AM

Try to adjust the settings on your router..Open the setup page and under the Wireless tab,Change the Wireless channel to 11-2.462GHz...Click on Advanced Wireless Settings...Change the Beacon Interval to 50,Fragmentation Threshold to 2304, RTS Threshold to 2304 and Click on Save Settings...Under the setup tab,Change the MTU to 1300 and click on save settings..Power cycle the router and check..
If that does not resolve the problem then,upgrade the router's firmware and configure the router from scratch.

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