Originally Posted by thrand1
One last stab in the dark...don't own this modem so harder to troubleshoot.
Because your devices are properly getting IP addresses from the DHCP server, I'm thinking the problem could be with the NAT settings or configuration on the modem, if there is some setting that might affect the Ethernet ports versus the WiFi network?
On the "Basic" setup page according to the manual, there is a "Gateway Mode" and "Primary Network Only Mode" dropdown- what is chosen for each of those? Options might include "Routed", "Bridged", and "NAPT"
Edit to add: You mention getting an AirPort Express. Have you connected that/how have you configured it? If your AirPort Express is running a DHCP server function that overlaps with the SBG6580 that could be causing another set of problems entirely.
Thanks you for taking time to try to help me figure this out. I must say that i may have left some info out not even thinking it was a important but at this point it very well may be important. The modem/router i own is the Arris Surfboard SBG6580, the one that im barrowing from my friend is NOT the same modem, its a Arris TG862.
I will say that im not IT guy, VERY far from it. But i do know how to log in a secure WiFi and check a few other things out. Not even a clue as to what NAT means thou. Anyhow i logged in to my modem today and cant find anything that deals with Ethernet settings or anything like that. The Ethernet works on my laptops and Seagate Harddrive but not on the other items i have listed above.
I logged in to his modem today and checked the settings, when i go look at NAT Settings it has the option of Bridged, RoutedWithNAT, & Routed WithOUTNAT. RoutedWithNAT is selected!
For the life of me i cant find a single thing about LAN or NAT setting on the SBG6580. When i go to basic its there is a area that is labeled Primary Mode. In this area is says NAPT Mode and i can select Enable or Disable. It is set to ENABLE. Under that it has Network Config and the only thing i could change on the is the LAN IP and i havent changed that.
As for the Airport Express it was bought as a WiFi extender. Currently the WiFi on the TG862 is internally turned off and im using the Express as a route for WiFi only. This issue was noticed well before i even unboxed the Express so its impossible that could be the issue. There is only two things listed under the DHCP Clients and none of them are the Express.
I hope i have provided you with some info that could help you help me. I will be heading to work in about an hour so unles you can reply before then i wont be able to get back with you until the morning.
If i dont here back from Arris tomorrow i will grab the old laptop i have and SBG6580 and connect it to a different cable line. This way i can go through each screen side by side on both modems at the same time. Today i had to keep flip flopping back and forth. I be sure to post what i find.
Thanks Again Wayne