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3 Posts
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5773
June 11th, 2004 14:00
2016 Home Netwokring
I have multiple computers in my home and cable internet. I purchased a 2016 powerconnect switch through a business sale and decided to try it for my networking purposes. All of my home computers connected without problem, including the cable internet. There was network access and internet access across all systems.
This system operated flawlessly for a month. As of yesterday, we had a power outage. When everything came back on, internet access was gone. I can only manage to get one computer at a time working for internet access, although the network itself is still intact. Any idea what could have happened?
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GregG1
2 Intern
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812 Posts
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June 11th, 2004 14:00
It sounds like a problem with your router. A cable/DSL router provides multiple systems access to the internet by using Network Address Translation (NAT) to hide the inside addresses from the outside. If only one system is able to access the internet at a time, the NAT is not working correctly. You might try resetting the defaults on your cable/DSL router and reconfigure it appropriately for your needs.
The switch simply works on a Layer 2 basis, so it would not affect routing the traffic from your clients.
EnsRoland
3 Posts
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June 11th, 2004 23:00
Andrew_Hicks1
2 Intern
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169 Posts
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June 14th, 2004 12:00
I would say that this is working as most cable modem setups would, if you are leasing only a single IP from the ISP.
Most cable/DSL setups are for a single IP - I would suggest running 'ipconfig /all' on each of the client systems on your internal network, and find out what IP addresses they are getting. Odds are that the one system that can get out to the internet is getting a DHCP address assigned by the ISP, while the others are defaulting to a 169.254.x.x.
If, however, you were leasing multiple IPs, and are no longer getting them - that is an issue to take up with your ISP or cable modem manufacturer. If the client systems *are* leasing the proper IPs from the provider, you *still* probably want to contact the ISP, as the 2016 is a simple, layer-2 switch, and should be able to forward traffic from any of the internal clients to the cable modem.
EnsRoland
3 Posts
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June 14th, 2004 15:00
Okay. Apparently I had been getting multiple IPs from the cable service at one point (in error) and they changed the system so it wouldn't allow them anymore. The odd thing is, they changed the system nearly 3 weeks ago. I've talked to a network specialist and he said he wasn't familiar with the 2016 specifically but he thought maybe it had somehow locked in the good IP addresses and didn't release them until the power failure. I didn't think the 2016 had that kind of memory capacity...? At any rate, we chalked the system's functionality up to a fluke of technology. I have since changed over to a router and everything is fine again. Just a shame because the 2016 ran so nicely for that month.
Thanks for the help anyways.