Computer Network Services

GCS provides reliable, efficient and friendly IT support & Network consulting services. Our Computer Network Consultants are Microsoft and Cisco certified and highly trained to install, upgrade and monitor network for small and mid-sized businesses.

GCS is a computer network services inc that makes sure that your computer network services are according to your business needs and help to improve the bottom line of your company. Our team of experts know how to streamline networking and enhance efficiency and productivity by optimizing better connectivity. We have years of proven experience in the networking field. We have worked with some largest businesses and utilize this experience to customize computer networking services according to your business needs. Our experts use the best solution to integrate a diverse range of communication services for your business. Whether your business is small or large, our cutting-edge solutions are just according to your needs.

Computer network consulting

GCS offers various computer network consulting expertise which will make sure your IT plan is implemented appropriately. We know that managing your computer network is environment is essential for the success of your business. Our consulting services include comprehensive network assessment to establish smart and cost-effective system network based on your specific objectives which provide quick responses. Our computer networking consultants make sure that your network is operating at its peak performance level and ensure network security from the outside world. Our experts are specialized in computer networks that include network design, upgrading the existing system, and other network services at affordable price.

Chicago Network Consulting

We have been serving Chicago and Chicagoland area since 1996. When working with GCS, your business takes advantage of years of computer networking service experience in building and managing networks without the costs associated with hiring a certified, in-house, technology staff. We will do it for a fixed fee to make your budgeting and business planning easier.


We provide affordable, high-quality computer network services and products including:

  • Network Planning, Installation, Support, Security Review, and Redesign Services
  • Virtual Private Network (VPN) Setup and Remote Access Services (RAS) Setup
  • Internet/Wireless WEP/WPA/WPA2 Security setup and troubleshooting
  • Internet/Cable/Broadband/Dialup/ADSL/3G/4G Connection Troubleshooting
  • Network Infrastructure Management
  • Office relocation, expansion, etc
  • Ethernet Card Troubleshooting/Replacement
  • Microsoft Windows Repair, installation, and support
  • Linux, Unix, Server and Desktop installation and support
  • Macintosh System desktop and network support
  • Intrusion Detection & Network Monitoring
  • Network Security Audits and Implementation
  • Email Solutions & Troubleshooting POP/SMTP/IMAP
  • Novell NetWare installation, support and migration to Linux and/or Windows
  • Spam and Virus Filtering
  • Domain, File, Print, DNS, Web, E-Mail, Database, and Application Servers
  • Clean Installations, Upgrades, and Migrations to different Operating Systems
  • Wired (CAT-5e, CAT-6, Fiber Optic) Network Setup
  • Wireless and WiFi Network Setup & Security
  • Local Area Network – LAN, Wide Area Network – WAN, Routers, Broadband Setup
  • DHCP and DNS Troubleshooting
  • TCP/IP Protocol Conflict and Configuration Issues
  • Slow internet or network bandwidth performance troubleshooting
  • Network Storage Device Setup and Maintenance
  • Disaster Recovery Planning, Data Backup and Restore services
  • Firewall Installation and Configuration
  • Network Printer Setup and Troubleshooting
  • Voice Over IP VOIP Setup and Troubleshooting
  • PC, laptop, MAC, server and hardware repairs
  • Virus protection and removal
  • Configuring Smartphones, Smart TV’s, tablets and laptops.
  • Emergency Network Support
  • Prepaid retainer services with guaranteed response time
  • Support Services including per-incident, hourly and contracted maintenance, service or support.

Skokie Location

5152 Main Street
Skokie, IL 60077
Tel: (847) 763 0763
Fax: (847) 763 1308

Chicago Location

77 W Washington St
Chicago, IL 60602-2803
Tel: (312) 739 2427
Fax: (847) 763 1308

Glenview Location

4725 Locust Ave
Glenview, IL 60025
Tel: (847) 972 2062
Fax: (847) 972 2090

Dallas Location

9330 LBJ Freeway Suite 900
Dallas, TX 75243
Tel: (972) 214 2373
Fax: (972) 666 4289

Certified Chicago IT Consulting Company

Microsoft Certified Gold Partner

Great Computer Solutions, Inc. BBB Business Review



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