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J
joearchaeologis
3 Posts
0
2172
July 4th, 2016 20:00
internet fail despite functioning ethernet and wireless hardware
I've got a 2014 XPS 8700 that has been working well, Windows 8, then 8.1, upgraded to 10 last year.
The machine was working well this morning, but on restarting this evening there is no internet connection (the usual reboots all round).
The router is working with other PCs via wifi and ethernet.
The machine is testing the ethernet Realtek PCle GBE family adapter(PCI slot 2) as functioning, but no ethernet connection - won't even talk to the router directly to see the settings. The Intel Dual Band Wireless AC 7260 (PCI slot 7) can see the router's wifi (even bluetooth), but won't connect.
So, if it was just the ethernet adapter I'd say replace that, but the dual band wifi too? Am i looking at a more fundamental comm failure on the motherboard?
Anyhow, if anyone has words of wisdom, I'd be grateful. Thanks,
Joe
joearchaeologis
3 Posts
752
0
Posted July 13th, 2016 19:00
upgraded W10 drivers, then followed Dell Networking and Wireless Support Center directions for W10.
Network troubleshooter did not identify any problems, though being offline, functionality is limited.
Networking commands were mixed. Winsock and IP resets worked, along with release.
ipconfig /renew gave complete errors with 'no operation can be performed" when media are disconnected (for wifi and LAN connections), therefore error when renewing interface ethernet, unable to contact DHCP server - timing out. /flushdns works.
Ethernet Realtek status indicates internet connection on IPv4, no network access on IPv6. Lots of bytes being sent and received. Media state enabled, speed 1.0 Gbps.
When I'm in setting => ethernet => network and sharing centre and I select set up connection or network => connect to the internet, I am told that I'm already connected, but if I open a browser there is no connection, and if I make a new connection (using my ISP PPPoE login I'm told that I'm connected (lots of bytes sent/received, but again I'm connected on IPv4, not IPv6, and the brower is not connected). Troubleshooting again cannot identify a problem. status quo on computer and modem/router reboots.
I can connect easily by wifi and ethernet to my linux laptop. Wifi to my XP laptop (doesn't like the ethernet). my ios and android devices connet to the the wifi no problem. wifi from the Dell likewise fails - sees the router, connects, but does not yield internet access. At this stage, moving to Linux is looking pretty good.
Joejoearchaeologis
3 Posts
752
0
Posted July 18th, 2016 20:00
I have confirmed that the modem/router are working, as are the ethernet cables.
The problem remains the windows 10 Dell, which can see the internet via ethernet IPv4, trading bytes back and forth, but internet browser access remains elusive. Pinged successfully, rolled back and updated the adapter, no luck with troubleshooter, all but ipconfig /renew worked (because no operation can be performed on the network connections when their media are disconnected), firewalls off, antivirus off. I have not uninstalled the network adapter as the problem goes across the ethernet, wifi and the usb wifi. the only thing I haven't done is reinstall all network devices.
Aside from that, any suggestions?
Joe
Jesse L (retired)
10 Wizard
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17898 Posts
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69016 Points
752
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Posted July 12th, 2016 08:00
JOEARCHAEOLOGIST,
Did you upgrade to the Windows 10 Drivers? If so, click the link below for help in resolving this issue.
Dell Networking and Wireless Support Center
Jesse L (retired)