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Author Topic: Computer hub issue Richard May Phenomenal Film Handler Posts: 1057 From: Floral Park, NY USA Registered: Aug 2004 posted 11-29-2008 10:49 AM                     I don't know a lot about computers so this may be very simple. I have 2 PC's at home hooked up to the internet connection. There is only one output coming out of the cable modem so I bought a hub. The problem is it won't see both computers at the same time. If I use one, the other one will say limited or no conectivity. I have to reset the modem for the other one to work but then the first one loses it. What am I missing?  |  IP: Logged Scott Norwood Film God Posts: 8146 From: Boston, MA. USA (1774.21 miles northeast of Dallas) Registered: Jun 99 posted 11-29-2008 10:57 AM                        Most likely, the cable "modem" ("bridge," really) is only recognizing the first hardware ("MAC") address that it "sees" when it boots. If your cable service does not support multiple computers, you will need to get a router to perform network address translation so that all of your network traffic appears to come from one source. Home-type routers are inexpensive and available at any computer store, Best Buy, office supply store, etc.  |  IP: Logged Chris Slycord Film God Posts: 2986 From: 퍼항시, 경상푹도, South Korea Registered: Mar 2007 posted 11-29-2008 11:20 AM                     A hub (or a switch as well) is for connecting multiple computers together into one local network; not for connecting multiple computers to an external network.  |  IP: Logged Richard May Phenomenal Film Handler Posts: 1057 From: Floral Park, NY USA Registered: Aug 2004 posted 11-29-2008 11:23 AM                     Thanks guys. I used a router before but it slowed down the speed . My cable provider even said that a router may do that.  |  IP: Logged Scott Norwood Film God Posts: 8146 From: Boston, MA. USA (1774.21 miles northeast of Dallas) Registered: Jun 99 posted 11-29-2008 11:29 AM                        Well, the hub would work if the cable modem (bridge) were configured to recognize multiple computers (hardware addresses, actually). There is no reason why it couldn't, except that the cable company has (presumably) configured it not to do so. There is no reason why a router should impose a performance limit on a typical home cable or DSL connection; most likely, something else was wrong.  |  IP: Logged Adam Martin I'm not even gonna point out the irony. Posts: 3686 From: Dallas, TX Registered: Nov 2000 posted 11-29-2008 12:12 PM                     quote: Scott Norwood the cable company has (presumably) configured it not to do so The cable company wants to charge you the monthly fee for each computer that accesses their service. Using a router makes all of the computers look like a single machine to the cable modem.  |  IP: Logged Mark Gulbrandsen Resident Trollmaster Posts: 16657 From: Music City Registered: Jun 99 posted 11-29-2008 12:58 PM                     quote: Chris Slycord A hub (or a switch as well) is for connecting multiple computers together into one local network; not for connecting multiple computers to an external network. Actually I have two servers here at home connected through a switch and then to my internet router.... works out fine with just a tiny bit of latency... What kind of router were you using? Mark  |  IP: Logged Chris Slycord Film God Posts: 2986 From: 퍼항시, 경상푹도, South Korea Registered: Mar 2007 posted 11-29-2008 01:34 PM                     quote: Mark Gulbrandsen Actually I have two servers here at home connected through a switch and then to my internet router.... works out fine with just a tiny bit of latency... I don't see how that changes what I said. A switch alone cannot connect a group of computers to an outside network (ie it can't route packets). Otherwise, it would be a router itself. quote: Richard May I used a router before but it slowed down the speed . My cable provider even said that a router may do that. There are only a few ways that could happen 1) Your router just plain sucked and was somehow extremely slow (not as likely) 2) Your router had bad settings (more likely) 3) Your ISP has a policy against using routers and determined you were doing it and slowed you down  |  IP: Logged Rick Raskin Phenomenal Film Handler Posts: 1100 From: Manassas Virginia Registered: Jan 2003 posted 11-29-2008 02:28 PM                     Option 2 gets my vote. Try a ping test by clicking Start -> run. Type "cmd <return>" in the open box and click OK. In the DOS window, type the command "ping www.film-tech.com [return]". I get average response time of 61ms and my throughput is fine for a 3Mb DSL connection. Geek Note 1: I tried to edit out the HTML code for a URL but it didn't work. Geek note 2: I know, Ping is intended for testing connectivity. Never the less, give it a shot.  |  IP: Logged Monte L Fullmer Film God Posts: 8367 From: Nampa, Idaho, USA Registered: Nov 2004 posted 11-29-2008 03:24 PM                     I've seen Option 1's do it as well - poor makes of routers.. If you also subscribe to Vonage and you wonder of sudden disconnects, a bad router does this as well since its slowing down trans connections. dang, did 77ms with that 'ping' test ... using DSL 756k  |  IP: Logged

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