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PA.WOODCHUCK
2 Intern
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24 Posts
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January 31st, 2026 00:28
Aurora R11, lost RJ45 network connection
R11 all OEM, no changes. I was making changes on my TP-link WiFi router as access point from main router. after that I started losing connection randomly first and today lost all connection even when I connect direct to main router.
Tested cat cable(passed) connected another PC( works OK)
WiFi unaffected and works OK.
open to suggestions?
thanks
(edited)
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Posted February 10th, 2026 00:06
Installed TP-Link 2.5GB PCIe Network Card (TX201) and all OK now with DL close to 1GB
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Posted February 10th, 2026 13:48
@PA.WOODCHUCK
For other users who might want to to do this upgrade =
Is this the link to the card you purchased? TP-Link 2.5GB PCIe Network Card (TX201)
Into which port did you install it?
#IWork4Dell
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Posted February 10th, 2026 14:33
16 or 17 both are the same PCI-e spec. Was plug&play and didn't need to run mini including CD.
Like to add this was the "ONLY" time I had an MB NIC fail in all the PC's I've owned.
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Posted February 10th, 2026 14:35
@PA.WOODCHUCK Agreed on spec, was just curious which one you used.
#IWork4Dell
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Posted January 31st, 2026 01:31
Does the WIRED ethernet card/device show in Device Manager?
You still have the Aurora-R11 on TCP/IPv4 and AUTO, correct?
With WiFi disconnected (and Access Pont forgotten) AND WIFI DISABLED ... have you tried letting it grab an IP address from the Router's DHCP-pool?
(edited)
Dell Rockstar
Microsoft Windows and Apple iOS Developer (Retired)
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Posted January 31st, 2026 13:56
Hi
I think the default gateway may need attention.
Kind Regards
anne_droid
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Posted February 1st, 2026 20:32
Does the WIRED ethernet card/device show in Device Manager?
--YES
You still have the Aurora-R11 on TCP/IPv4 and AUTO, correct?
--YES, auto(DHCP) IP and DNS assignment
With WiFi disconnected (and Access Pont forgotten) AND WIFI DISABLED ... have you tried letting it grab an IP address from the Router's DHCP-pool?
--It's not getting IP
I gone through dell online diag and shows network card is OK
Reinstalled driver
At this point I'm thinking the network card which I think is part of motherboard failed.
Should a PCI-e network card work... thinking of the TP-Link 2.5GB PCIe Network Card (TX201)?
thanks
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Posted February 1st, 2026 21:24
Again, be sure WiFi is turned-Off in Settings (switch slid to left) and label says OFF. IIRC, you can't use Wired if WiFi is Enabled.
Coincidentally, I just installed a TP-Link Omada (medium) stack at my residence here. Runs great. Anything non-portable is connected with real cat-5e/6 wires.
Personally, I would just use Aurora-R11's WIFI until I figured this out. I really doubt your internal ethernet card is bad (especially if showing in Device Manager).
Have you tried just using the basic Windows drivers?
(edited)
Dell Rockstar
Microsoft Windows and Apple iOS Developer (Retired)
- Like many of you, I can appreciate a good game-engine.
- I answer questions here, but I'm not a Dell employee.
- Consider giving posts you like a "thumbs-up"
- Posting models-numbers and software versions speeds trouble-shooting.
- Click "Mark as Accepted Answer" on any post that answers your question best.0
0
Posted February 3rd, 2026 00:36
@Tesla1856 UPDATE: Booted up PC today and had network connection but only 100mb when before 1GB. Verified with another PC which connected at 1GB to same switch.
Followed through with you supplied above link and no change.
I'll see what tomorrow
(edited)
PA.WOODCHUCK
2 Intern
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24 Posts
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1
Posted February 6th, 2026 18:23
Yes I ordered the NIC, but first gave one last attempt since I have an R11 and R16 which basically the same.
device manager, Ethernet controller I checked every value and all were the same.
I'll update once I get the NIC installed next week.
thanks