IT Support in Dunwoody, Georgia

Something broke. We fix it — fast. COMNEXIA provides responsive IT support for Dunwoody businesses with local technicians who understand your systems.

35 Years in Business
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Atlanta-Based Since 1991
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Last updated: September 22, 2026

IT Support for Dunwoody Businesses

IT Support in Dunwoody, GA: Security-First Managed IT from COMNEXIA

Dunwoody businesses operate in one of metro Atlanta's most competitive commercial corridors, from the Perimeter Center office towers along Ashford Dunwoody Road to the auto dealerships clustered near I-285. When a server goes down, a phishing email lands in an employee's inbox, or a point-of-sale terminal stops talking to the DMS, the cost is immediate and measurable. COMNEXIA has provided managed IT support to DeKalb County and greater Atlanta businesses since 1991, headquartered in Roswell, GA, roughly 20 miles north of Dunwoody via GA-400. Our approach puts security controls in place before we optimize anything else, because a faster network that leaks data is not an improvement.

What IT Support Actually Means for a Dunwoody Business

IT support is not a single service. For most small and mid-sized Dunwoody organizations, it covers four overlapping areas: endpoint management, network monitoring, help-desk response, and security hardening. COMNEXIA bundles those into a documented, repeatable managed services engagement rather than billing hourly after something breaks. That means your environment is monitored continuously through our remote monitoring and management (RMM) platform, NinjaOne, which flags patch gaps, disk health warnings, and offline devices before they become outages. Every Windows and macOS endpoint is enrolled, policies are applied uniformly, and patch compliance is reported monthly so you can see exactly which machines are current and which are not.

Security-First Configuration: What We Actually Deploy

Before we touch performance or workflow, we establish a security baseline. That baseline includes the following controls, applied to every new client during a structured onboarding process that runs 30 days and produces a written network documentation package:

  • Microsoft Entra ID conditional access policies that block authentication from non-compliant devices and enforce multi-factor authentication for every user, including shared service accounts
  • SentinelOne EDR deployed to all endpoints, configured with the Singularity Core policy set to detect and autonomously roll back ransomware before it spreads laterally
  • DNS filtering through Cisco Umbrella to block command-and-control callbacks and known malicious domains at the resolver level, catching threats that bypass email filters
  • Privileged access controls in Active Directory or Entra ID that follow least-privilege principles, meaning no standard user account holds local administrator rights
  • Encrypted endpoint backups with tested restore procedures, not just backup jobs that have never been verified

This stack is not theoretical. It is the same configuration applied to every COMNEXIA-managed client, including auto dealerships in the Atlanta metro that handle sensitive consumer financial data under the FTC Safeguards Rule.

IT Support for Dunwoody Auto Dealerships

Dealerships in the Dunwoody and Perimeter area face a specific set of IT problems that generic MSPs routinely mishandle. Dealer management systems, including CDK Global, Reynolds and Reynolds, and Dealertrack, require stable, low-latency LAN connectivity, precise firewall port configurations, and careful change-management windows that avoid disrupting finance, service, and parts operations simultaneously. COMNEXIA technicians have hands-on experience with CDK Drive and Reynolds ERA-IGNITE environments, so we do not treat the DMS as a black box.

The FTC Safeguards Rule, which took full effect in June 2023, requires auto dealerships to maintain a written information security program, conduct annual risk assessments, and implement specific technical controls including encryption of customer data in transit and at rest. COMNEXIA's IT support engagement addresses those requirements directly: the risk assessment is a documented deliverable, and controls like Entra ID conditional access and SentinelOne EDR map to specific Safeguards Rule provisions covering access controls and intrusion detection. We do not staple a compliance checklist onto a generic support contract. The controls we deploy are the compliance evidence.

Help Desk and Ticketing: How Support Actually Reaches Your Staff

COMNEXIA runs a help desk using ConnectWise Manage for ticketing, which means every request, no matter how it arrives, phone, email, or the client portal, gets a ticket number, a severity classification, and a logged response chain. Users in your Dunwoody office know exactly who is working on their issue and can check status without calling back. Monthly reporting shows ticket volume by category, so you can see whether, for example, repeated password resets point to an MFA configuration problem rather than a training gap.

Why Dunwoody Businesses Work with COMNEXIA

Proximity matters when an on-site visit is required. Our Roswell headquarters puts a COMNEXIA technician at a Dunwoody location in under 30 minutes under normal traffic conditions using GA-400 South to I-285 East. After 35 years serving Atlanta-area businesses, our documentation and onboarding processes are specific enough that a new technician working your account has the same network map and configuration baseline the senior engineer built on day one.

If your Dunwoody business is running without a documented security baseline, without endpoint detection and response, or on a break-fix support model that bills you after damage is done, call COMNEXIA at (877) 600-6550 to schedule a no-obligation network assessment. We will identify specific gaps, not general risks, and show you exactly what a managed IT engagement covers before you commit to anything.

Why Dunwoody Businesses Choose COMNEXIA for IT Support

COMNEXIA has been the go-to IT partner for Perimeter Center businesses since 1991. We understand the demands of Dunwoody's corporate environment — multi-floor office networks, compliance requirements, high-availability systems — because we've been building and managing them for over three decades from our nearby Roswell headquarters.

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IT Support Near Dunwoody

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