Member Avatar for PalomoBlanco

Hi, After a adware and virus infection I cannot longer surf on the internet, when I plug the cable it says renewing IP address and then Limited or no connectivity but if I plug a different computer internet works fine.

I connected the 2 computers thru a cable and the connection works fine
I tried to install the CD from my internet provider and the problem still there

Can anyone help me to find out what to do please?
crunchie helped me to get rid of the virus and malware and suggested to run winsockfix but the problem persist.

Thanks for your help!!

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Dani AI

Generated

Brief expert summary and a focused diagnostic checklist to complement the thread: the sequence described — adware/virus, Windows showing "Renewing IP address" then "Limited or no connectivity", while a second PC and a direct cable link work — strongly points to a software-side problem on the affected machine (corrupted TCP/IP/Winsock, DHCP client/service issues, proxy/hosts changes or lingering LSP/malware), not an ISP or router hardware failure. @crunchie’s Winsock attempt and ’s NIC-driver suggestion are both reasonable and may overlap with what ultimately fixed the machine after a reboot; ’s ICS pointer is relevant for sharing setups but not necessary here.

A compact set of diagnostics to run from an elevated Command Prompt (capture output to a text file for later comparison):

ipconfig /all
ipconfig /release
ipconfig /renew
ipconfig /flushdns
netsh int ip reset resetlog.txt
netsh winsock reset
ping <gateway IP>
ping 8.8.8.8
nslookup www.google.com

Interpretation notes: ipconfig /all documents the current DHCP lease, gateway and DNS; netsh commands reset the TCP/IP stack and Winsock; ping to gateway isolates local DHCP/router reachability; ping to 8.8.8.8 and nslookup test upstream connectivity and DNS. Replace <gateway IP> with the router address from ipconfig /all.

Follow-up checks and prevention: confirm the DHCP Client and DNS Client services are set to Automatic and running; inspect Event Viewer (System) for DHCP or driver errors stamped at the time of the problem/reboot; verify the hosts file (C:\Windows\System32\drivers\etc\hosts) and Internet Explorer proxy settings for unauthorized entries; run updated anti-malware and anti-rootkit scans and review Device Manager for driver dates/rollbacks. If the issue recurs, isolate with Safe Mode with Networking or a Linux live USB and/or an alternate USB NIC to separate OS-stack problems from hardware faults. Finally, record which action resolved the fault and create a restore point once the system is clean.

Recommended Answers

All 5 Replies

Member Avatar for Cyber Punk

Hi, please refer to article.
Please tell me if it does not help you.

Member Avatar for PalomoBlanco

Hi, thanks for your answer, just a few questions...

Do I need to buy a hub?
This means both computers will be running to be able to use the internet in the broken one?

Thanks!

Member Avatar for Cyber Punk

Yep, you need to buy a hub. They're affordable, not too costly.
Depends on the company and no of connections you want and the net speed of the hub.

Member Avatar for Beastmanh

You could also try re-installing your NIC driver. Click "start" > Right click "My Computer" > choose "Properties". Click the "Hardware" tab. Click on "Device Manager". Click on the '+' sign next to "Network adapters". Right click whichever device mentions the word Ethernet, (different NIC's will have different names, but the correct one will mention being an ethernet card). Then click uninstall and uninstall the device. Then restart. When you restart, windows will automatically re-install the driver for that device. Let us know if this fixes your problem :)


Cheers!

Member Avatar for PalomoBlanco

Thanks for your help, problem fixed!!
I really don't know what fixed the problem I was doing several things and when I restarted the computer all was woeking.

Thanks for your help and tine!

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