WRT54GS has painfully slow speed, normal with modem.

Hi everyone, I've got a WRT54GS that I'm using in a village house with comcast. There are five mild internet users and I (the big internet user) and we've all stumbled into a huge issue. When connected to the router (this is with wireless disabled and my PC being the only one with a hard line to the router) I'm recieving pings of between 200 (which is fine) and 2400 (which obviously isn't)
Today I turned off everyone else's line except my own, and was averaging between 750 and 2400.
I've done power cycles multiple times, and when the router comes online, it's giving me a decent ping for a few minutes, and then begins to chug and slow down.
When I connect my PC directly to the modem, however, I'm pinging between 18 and 22.
Can anyone think of why the router would be doing this? I've never encountered an issue like this before.
Thanks
-Colin

Maybe the router is old and you haven't upgraded or resetted the router...
Download the router's firmware from here , make sure you select the correct version number...
Follow these steps to upgrade the firmware on the device : -
Open an Internet Explorer browser page on a computer hard wired to the router...
In the address bar type - 192.168.1.1...Leave the username blank & in password use admin in lower case...
Click on the 'Administration' tab- Then click on the 'Firmware Upgrade' sub tab- Here click on 'Browse' and browse the .bin firmware file and click on "Upgrade"...
Wait for few seconds until it shows that "Upgrade is successful" After the firmware upgrade, click on "Reboot" and you will be returned back to the same page OR it will say "Page cannot be displayed".
Now reset your router :
Press and hold the reset button for 30 seconds...Release the reset button...Unplug the power cable from your router, wait for 30 seconds and re-connect the power cable...Now re-configure your router...This should resolve your issue...

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An excellent link to read is Tom Reed's Mac Malware Guide.
Also, visit The XLab FAQs and read Detecting and avoiding malware and spyware.
See these Apple articles:
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Visit The XLab FAQs and read the FAQ on backup and restore. Also read How to Back Up and Restore Your Files. For help with using Time Machine visit Pondini's Time Machine FAQ for help with all things Time Machine.
Referenced software can be found at MacUpdate.
Additional Hints
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Add more RAM. If your computer has less than 2 GBs of RAM and you are using OS X Leopard or later, then you can do with more RAM. Snow Leopard and Lion work much better with 4 GBs of RAM than their system minimums. The more concurrent applications you tend to use the more RAM you should have.
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Pre-Mavericks
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Step 2
The purpose of this step is to determine whether the problem is caused by third-party system modifications that load automatically at startup or login, by a peripheral device, by a font conflict, or by corruption of the file system or of certain system caches.
Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards, if applicable. Start up in safe mode and log in to the account with the problem. You must hold down the shift key twice: once when you boot, and again when you log in.
Note: If FileVault is enabled, or if a firmware password is set, or if the boot volume is a software RAID, you can’t do this. Ask for further instructions.
Safe mode is much slower to boot and run than normal, with limited graphics performance, and some things won’t work at all, including sound output and Wi-Fi on certain models. The next normal boot may also be somewhat slow.
The login screen appears even if you usually log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
Test while in safe mode. Same problem?
After testing, reboot as usual (not in safe mode) and verify that you still have the problem. Post the results of Steps 1 and 2.

SLOW speeds after sw update - Novatel 4G LTE router with voice

My device auto-updated to sw 2.0 and ever since am getting 1-3 Mbps up/down. Prior to the sw update, I was getting "normal" LTE speeds ranging from 15-25 Mbps up/down.
Verizon processed a replacement (was brand new, swapped in-store) with same experience. Speeds were normal but after a few minutes of being powered on, the router auto-updates to 2.0 and slow speeds thereafter.
Phone front line has been nice but since this device is so new hoping posting here with get the attention of someone to correct this issue. Swapping for replacement devices isn't solving the problem.
Anyone else? Ideas for a fix?

Ok, I just followed JoeL and am awaiting approval. For reference, see the image of 3 speed tests this morning conducted on an LTE iPad. No other devices are connected to the router.
connected to the wireless network broadcast by the Verizon 4G LTE router - 0.6 down/up, unacceptable
connected straight to the Verizon LTE network - 34 down / 9 up, fine
home wireless network
The 1st test should look very similar to the 2nd since both are using the Verizon LTE network

WRT54GS has painfully slow speed, normal with modem.

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