Member Avatar for ice_breaker

I'm not able to access to some web sites at home whereas I can access to these webs at work. Please advise. Thanks

  • 2 Contributors
  • 4 Replies
  • 134 Views
  • 2 Days Discussion Span
  • Latest Post Latest Post by ice_breaker

Dani AI

Generated

Short, practical checklist to isolate the problem reported by and to follow up on 's suggestion to inspect the network gear.

Start with quick diagnostics on the laptop (run these in an elevated Command Prompt):

ipconfig /all
ipconfig /flushdns
nslookup your.site.name
ping -n 4 8.8.8.8
tracert your.site.name
netsh winsock reset

How to read the results: if nslookup fails on the laptop but works from the PC, the issue is name resolution on that machine (bad DNS server setting, hosts file entry, or local firewall). If nslookup succeeds but the browser still reports a name/connectivity error, look at browser proxy settings, extensions, or local security software interfering with HTTP/HTTPS.

Browser and OS checks (device-level):

  • Disable any proxy or "web acceleration" in the browser and in Windows Internet Options.
  • Check the hosts file (Windows: C:\Windows\System32\drivers\etc\hosts) for unexpected entries.
  • Temporarily disable web shields/HTTPS inspection in antivirus/Internet security suites.
  • Try a different browser or a private/incognito window.

Router/network checks (as recommended):

  • Log into the router admin and review the DHCP client table to confirm the laptop received an IP and DNS servers.
  • Inspect DNS settings, parental controls, URL filters, or firewall rules that might block specific hostnames.
  • Swap the laptop to the same physical port/cable the working PC uses, or connect it directly to the modem to rule out a bad port/cable or router rule.
  • Note: back up router settings before making changes and avoid resetting the device unless credentials and ISP settings are known.

Common culprits are per-device DNS misconfiguration, proxy/firewall/web-filtering on the laptop, or router-side blocking. The steps above will pinpoint which layer is failing so the correct fix can be applied.

Recommended Answers

All 4 Replies

Member Avatar for Suspishio

Without info as to your symptoms (plenty of info) there's nothing we can help you with.

For example you miught be plugged into the network at work, but not at home.

Or your router/DSL modem doesn't have the right green lights on.

Or you get error messages when you try to get on the web? What messages? Have you tried Network Connection Repair?

We need a lot of information. Not just "I can't access the web".

Member Avatar for ice_breaker

I have a modem with some 3 ports. With the same web site, my PC can access to the web, whereas my laptop can't. I have tried Firefox or IE but doesn't help. Pls advise

Thanks
Ice.

Member Avatar for Suspishio

You don't like giving information, do you? Not even to answer my prompting questions. Hmmph.

Have I read between the lines correctly?
1/
You have a DSL modem with three ports to which are connected your PC and your laptop. Which DSL modem please? Or do you mean a router that is connected to a DSL modem (which usually only have on output port).

2/
Your PC connects to the web OK, the laptop doesn't.

When we establish these facts, then we can advise - for example logging on to the router or modem to see what's going on.

So please, give us the information we need.

Member Avatar for ice_breaker

Have I read between the lines correctly?
1/
You have a DSL modem with three ports to which are connected your PC and your laptop. Which DSL modem please? Or do you mean a router that is connected to a DSL modem (which usually only have on output port).

Modem: ZyXel, P-600 series

2/
Your PC connects to the web OK, the laptop doesn't.

Let me give you my situation: I access to the Net and I log in to yahoo mail. I open some mails, these mails appears some links as I have joined discussions in some forums, for example: www.excelforum.com. I can access to some forums, but recently not able to join my discussion in excelforum with the error msg "Address Not Found" by using laptop whereas PC can.

Please find answer in red and advise.Thanks

Be a part of the DaniWeb community

We're a friendly, industry-focused community of developers, IT pros, digital marketers, and technology enthusiasts meeting, networking, learning, and sharing knowledge.