Wireless Router communication

March 30, 2009 at 07:06:11
Specs: Windows 2000
I'm looking for information on the wireless router...I have a Linksys 54g and my ISP claims no problems on their end however I can have great wireless and wired connectivity to the Linksys and no connectivity to the internet. The Linksys cable modem shows no connectivity to the internet and does show connectivity to the router. I can sometimes reset the modem and get connectivity back, sometimes not. When I can't get connectivity back I call the provider and within a few minutes connectivity is back and they claim that all they did was reset my modem.
The provider is saying that the problem is the way the router interacts with the modem and while this seems a little far fetched to me I did do a hard reset of the router (reset button in the back) and reconfigured it last night. The communications came back to the standard 3.0gig per second range from .09, so what I'm wondering is, does anyone have any experience with a router reacting this way, and if so do you know the cause?

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March 30, 2009 at 10:28:15
Internet connection reliability and max speed being low problems like you describe are almost always caused by a problem with the high speed modem connection, not the router.

It's not clear from your information whether you have a standalone high speed modem and a separate router, or a combo high speed modem/router. If you have a combo modem/router what I mention in the following about re-booting the modem applies to the combo, because the modem is built in.

- rebooting the modem
If it has a switch, turn it off, turn it on.
If it doesn't have a switch, uplug the power adapter connection at the modem, plug it back in.
Wait a short time until the leds indicate the modem has a good connection - you should then have a good connection to the internet.
- checking the connection of the coax cable to the modem and to whatever else it connects to, to make sure no connection is loose
- ( a) different coax cable(s)
- using a single longer coax cable rather than more than one connected in series
- if the coax cable is connected to a simple 2(or more) to 1 splitter box, try a different splitter box - one with gold plated connectors will be more reliable.

Gold plated connectors on the ends of the coax cable(s) are a lot less likely to cause problems due to an oxidization film forming on the connectors. You could try replacing the connectors on the ends of the coax cable(s) with gold plated ones if they're not gold plated.

I have a separate high speed modem and have used several different routers with it, wireless and wired. When I have had an internet connection problem, it's always been because of a problem with the modem's connection, not the router. Re-booting the modem usually fixes the problem right away.

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March 30, 2009 at 16:03:09
Thanks for the input, this too has been my experience. When I have problems connecting to the internet it usually turns out to be the connection and not the modem or the router (they are separate by the way). And as I said when the connection wouldn't come back by resetting the modem, a call to the provider would get the connection back...them telling me of course that they only reset MY modem remotely (which I had already done 4 or 5 times prior to calling them). Anyway I'm just a little frustrated with them and have no "proof" that it isn't my gear. I'm still working on it though so any additional information is always welcome.

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March 30, 2009 at 18:52:06
Maybe the cable modem's faulty or damaged.
Can you borrow someone else's cable modem?
Or if it was provided by the ISP maybe they'll swap yours for another one if you insist?

I'm using an ADSL connection but I've fiddled with other peoples computers who have cable modems and I've had to reboot those too, but not as often as I've had to reboot mine.
I've had 4 modems. The first one (a Linksys) worked fine for a while then it kept dropping connections and frequently was getting a poor connection. It was the only thing connected to my computer I didn't have connected to anti-surge protection and it dawned on me after a while that it might have been damaged from power surges or spikes caused by lightning storms in the area. A friend had two modems and gave me one (a 3Com) for working on his computer - the problems went away. I've had to reboot the modem many times but the problems since have never been as severe and I suspect are mostly due to to the 1959 telephones lines in the area. I did a test with Sysoft Sandra a few months back and was getting an identical ~20% packet loss with two different modems (D-Link and Motorola) on the internet - there were exclamation marks beside the figure so I suspect that's not normal.

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March 30, 2009 at 19:49:25
I did go out and buy a new cable modem...sitting on my floor waiting until I get home from work tomorrow so I can have the ISP make sure the mac address is in his table. I hook it up directly out of the box and get a .09 gigabit link speed...should be around 3.0 gig per second. The old one is running right now at about 3 so I'm assuming the new one is throttled back until included in the mac list for approved devices.
The original modem and router are both working like they are supposed to but I want to get the new modem on before the weekend since that is the window where I usually have the problem.
I am going out of town for two weeks so I'll have to wait until I get back to see if I've had any link problems...logging will be the word of the day while I'm gone, I just hate slogging through them when I get back. Oh well, such is life.
Thanks again for input and your power issue idea may be right on the money... don't have many thunder storms in southern Nevada but the occasional power loss and spike may have rendered some damage to it.

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March 30, 2009 at 19:51:20
Sorry, looks like I misspoke...3 megabit per second...oops! Long day at work.

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