SkillPoint IT | Free IT Training & Managed Services Forum - Recent Topics https://skillpointit.com/community/ SkillPoint IT | Free IT Training & Managed Services Discussion Board en-US Sun, 08 Mar 2026 01:18:40 +0000 wpForo 60 Firewall & Port Blocking https://skillpointit.com/community/troubleshooting-windows-network-services-dns-dhcp-and-connectivity-issues-explained/firewall-port-blocking/ Wed, 23 Jul 2025 13:24:28 +0000

  • Symptoms:

    • Services not reachable (RDP, File Share, etc.)

  • Fixes:

    • Open required ports (e.g., TCP 3389 for RDP, 53 for DNS)

    • Check Windows Defender Firewall rules

    • Use telnet or Test-NetConnection to verify port access

    • ]]>     mianshahzad10 https://skillpointit.com/community/troubleshooting-windows-network-services-dns-dhcp-and-connectivity-issues-explained/firewall-port-blocking/     Active Directory Access Issues https://skillpointit.com/community/troubleshooting-windows-network-services-dns-dhcp-and-connectivity-issues-explained/active-directory-access-issues/ Wed, 23 Jul 2025 13:24:01 +0000

  • Symptoms:

    • Users can't log in to domain

    • Group Policy not applying

  • Fixes:

    • Verify DNS settings (AD relies on DNS)

    • Check replication between domain controllers

    • Use tools like dcdiag, netdom, repadmin

    • ]]>     mianshahzad10 https://skillpointit.com/community/troubleshooting-windows-network-services-dns-dhcp-and-connectivity-issues-explained/active-directory-access-issues/     IP Configuration Errors https://skillpointit.com/community/troubleshooting-windows-network-services-dns-dhcp-and-connectivity-issues-explained/ip-configuration-errors/ Wed, 23 Jul 2025 13:06:50 +0000

  • Symptoms:

    • "Limited or no connectivity"

    • APIPA addresses (169.254.x.x)

  • Fixes:

    • Check physical connections (Ethernet, Wi-Fi)

    • Use ipconfig /all to review network settings

    • Reset TCP/IP stack: netsh int ip reset

    • ]]>     mianshahzad10 https://skillpointit.com/community/troubleshooting-windows-network-services-dns-dhcp-and-connectivity-issues-explained/ip-configuration-errors/     Troubleshooting DHCP Problems https://skillpointit.com/community/troubleshooting-windows-network-services-dns-dhcp-and-connectivity-issues-explained/troubleshooting-dhcp-problems/ Wed, 23 Jul 2025 13:06:22 +0000

  • Symptoms:

    • Clients not receiving IP addresses

    • IP conflicts or expired leases

  • Steps:

    • Use ipconfig /release and ipconfig /renew

    • Check scope configuration and exclusions

    • Verify DHCP server authorization in Active Directory

    • Monitor logs in Event Viewer (under DHCP Server)

    • ]]>     mianshahzad10 https://skillpointit.com/community/troubleshooting-windows-network-services-dns-dhcp-and-connectivity-issues-explained/troubleshooting-dhcp-problems/     Troubleshooting DNS Issues https://skillpointit.com/community/troubleshooting-windows-network-services-dns-dhcp-and-connectivity-issues-explained/troubleshooting-dns-issues/ Wed, 23 Jul 2025 13:05:58 +0000

  • Symptoms:

    • Cannot resolve domain names

    • Users unable to access websites or domain resources

  • Steps:

    • Use nslookup or Resolve-DnsName

    • Check DNS zone records (A, MX, PTR)

    • Verify forwarders and root hints

    • Restart DNS service if needed

    • ]]>     mianshahzad10 https://skillpointit.com/community/troubleshooting-windows-network-services-dns-dhcp-and-connectivity-issues-explained/troubleshooting-dns-issues/     Helpful Commands for Troubleshooting: https://skillpointit.com/community/troubleshooting-iis-testing-a-web-site-connected-to-the-internet-testing-a-web-site-on-your-intranet-resolving-iis-problems/helpful-commands-for-troubleshooting/ Wed, 23 Jul 2025 06:54:53 +0000 # Check IIS service status Get-Service W3SVC # Restart IIS iisreset # View active ports netstat -aon # Check log files C:\inetpub\logs\LogFiles\ ]]> mianshahzad10 https://skillpointit.com/community/troubleshooting-iis-testing-a-web-site-connected-to-the-internet-testing-a-web-site-on-your-intranet-resolving-iis-problems/helpful-commands-for-troubleshooting/ Resolving Common IIS Problems https://skillpointit.com/community/troubleshooting-iis-testing-a-web-site-connected-to-the-internet-testing-a-web-site-on-your-intranet-resolving-iis-problems/resolving-common-iis-problems/ Wed, 23 Jul 2025 06:54:21 +0000 Problem Solution
    ❌ 404 Not Found - Check if file exists in site root
    - Verify default document
    🔐 403 Forbidden - Check NTFS and IIS permissions
    - Ensure IIS_IUSRS has read access
    🌐 Site Not Loading - Restart IIS: iisreset
    - Check bindings and firewall
    ⚠️ Application Pool Crashes - Check event logs
    - Recycle or recreate the app pool
    🔒 SSL Certificate Errors - Reinstall certificate
    - Bind HTTPS to site correctly
    🚫 Port Already in Use - Run `netstat -aon
    🧭 DNS Name Not Resolving - Add host entry
    - Check DNS server settings
    ]]>     mianshahzad10 https://skillpointit.com/community/troubleshooting-iis-testing-a-web-site-connected-to-the-internet-testing-a-web-site-on-your-intranet-resolving-iis-problems/resolving-common-iis-problems/     Testing a Web Site on Your Intranet https://skillpointit.com/community/troubleshooting-iis-testing-a-web-site-connected-to-the-internet-testing-a-web-site-on-your-intranet-resolving-iis-problems/testing-a-web-site-on-your-intranet/ Wed, 23 Jul 2025 06:53:44 +0000 Steps to Test:

    1. Use Server IP or Hostname:

      • Test from another device on the network:
        http://<server-IP> or http://hostname

    2. Add DNS or Hosts Entry (Optional):

      • Update DNS or add C:\Windows\System32\drivers\etc\hosts entries for name-based access.

    3. Disable Windows Firewall (for testing only):

      • Temporarily disable to see if it blocks traffic:

     

    netsh advfirewall set allprofiles state off

    Check Binding Configuration in IIS:

    • Ensure the correct IP, port, and host name are set in site bindings.

     

    ]]>     mianshahzad10 https://skillpointit.com/community/troubleshooting-iis-testing-a-web-site-connected-to-the-internet-testing-a-web-site-on-your-intranet-resolving-iis-problems/testing-a-web-site-on-your-intranet/     Testing a Web Site Connected to the Internet https://skillpointit.com/community/troubleshooting-iis-testing-a-web-site-connected-to-the-internet-testing-a-web-site-on-your-intranet-resolving-iis-problems/testing-a-web-site-connected-to-the-internet/ Wed, 23 Jul 2025 06:52:54 +0000 Steps to Test:

    1. Verify Public IP Mapping:

      • Ensure the public IP is correctly mapped to your IIS server via NAT or port forwarding.

    2. Check Firewall & Port Access:

      • Port 80 (HTTP) or 443 (HTTPS) must be open on both server and network firewall.

      • Use this command to test:

    telnet yourdomain.com 80

    • Use Browser & Ping Tools:

    • Check DNS Propagation:

      • Verify DNS records using:

    nslookup yourdomain.com

     

     

     

     

     

     

     

    ]]>     mianshahzad10 https://skillpointit.com/community/troubleshooting-iis-testing-a-web-site-connected-to-the-internet-testing-a-web-site-on-your-intranet-resolving-iis-problems/testing-a-web-site-connected-to-the-internet/     Ensure That All Changes Are Applied https://skillpointit.com/community/troubleshooting-network-protocol-security-in-windows-server-ipsec-policies-and-security-associations/ensure-that-all-changes-are-applied/ Tue, 22 Jul 2025 07:39:13 +0000

  • After making changes, restart the IPSec service or reboot the machine

  • Or use

    • gpupdate /force
net stop policyagent && net start policyagent

    This ensures new policies or updates take effect.

    ]]>     mianshahzad10 https://skillpointit.com/community/troubleshooting-network-protocol-security-in-windows-server-ipsec-policies-and-security-associations/ensure-that-all-changes-are-applied/