DSL and workgroup networking looks have gateway conflict or such, how to fix this?

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Reskull

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Aug 25, 2010
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I have a TP-Link TD-8817 DSL cable modem that connected to internet, and have two PCs networked by only one Ethernet cable.

I manually configured PCs connections (IPs and etc) to make them know each other, but most of times when I turn pc that connected to internet, it seems like the connection of modem won't find Default Gateway or , Internet is connected but PCs can't find each other.

I reset modem power or trying to solve the issue by Windows 7 "Network troubleshooting".

Could it be a IP or gateway conflict? or what it could be?

How do I fix any kind of these problems?
 
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It is really strange they only put a single port on that device. It would cost only a few pennies to put 4 ports on. You device is actually a router and it even has dhcp server so it should be really easy to run multiple machine. You must have some very non standard thing configured if you can get 2 machines connected with a single cable.
The easiest solution is going to buy a four port 10/100 switch for about $10. This would then allow both machine to plug into the router and it should work in a more standard way.
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bill001g

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Aug 9, 2012
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It is really strange they only put a single port on that device. It would cost only a few pennies to put 4 ports on. You device is actually a router and it even has dhcp server so it should be really easy to run multiple machine. You must have some very non standard thing configured if you can get 2 machines connected with a single cable.
The easiest solution is going to buy a four port 10/100 switch for about $10. This would then allow both machine to plug into the router and it should work in a more standard way.
 
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TheDraac

TheDraac

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He must be connecting the first pc via the cable with that pc configured to share its connection. Then via wireless, the second pc is sharing its connection to the internet. I know you can do that, but I've never tried that setup myself.

As you mention, that the modem does in fact have a dhcp server, using a switch would be the cheapest and quickest way to add extra ports, if all you want is wired connections. I am actually using a 5 port switch with my netgear router to add the extra ethernet ports that I require right now.

Other wise, a wireless router would be good, then you have wireless connectivity as well. Also, you could ask your isp if they have a wireless router modem to replace your modem only device.
 
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Reskull

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thanks for solutions. and sorry for delay
what exactly differences between switch, hub or routers? which one i could use?
 
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