When ZTNA replaces a classic VPN concentrator.
Classic VPN gives access to the whole network, ZTNA gives access to one app after identity and device check. ZTNA fits hybrid work, BYOD and SaaS-heavy setups. Classic VPN stays fine if your internal network is small and only fixed people need access.
Try this first
- 1List the apps currently reached over VPN: how many are truly on-prem versus already SaaS?
- 2For the truly internal apps, pick a ZTNA product (Cloudflare Access, Twingate, Zscaler Private Access) and publish per app.
- 3Add device posture, without it ZTNA is not much more than a reverse proxy with SSO.
- 4Do not kill VPN day one, run both for a while until people are used to ZTNA, otherwise you flood the helpdesk.
When to bring us in
Staff use legacy thick clients (older ERP, CAD with license servers): those do not fit ZTNA, plan a hybrid with VPN for specific groups.
See also
- VPN will not connect or keeps droppingTwo main causes: your home internet or the VPN server. One quick test separates them.
- VPN connects but corporate folders are unreachableConnection says "green" but your network drives will not open. Almost always a DNS or routing issue.
- Home PC slow on VPN, fast at the officeThree suspects: home internet, VPN server limits, or routing that takes a long detour.
None of the above fits?
Describe your situation below. We pass your input plus the steps you already saw to our AI and return tailored next-step advice. If it's too risky to DIY, we'll say so.
Or skip the DIY entirely
Our Managed IT clients do not look these things up. One point of contact, a fixed monthly price, resolved within working hours.