Direct answer
Remote professionals and small-business operators should treat router and smart-device setup decisions as risk-managed operational changes, not “set and forget” tasks. The main limitations are that networking outcomes depend on your environment (ISP, locations, device capabilities, network load) and that common privacy or access expectations can be misleading. In practice, the biggest risks come from misconfiguration, inconsistent device behavior, weak management of updates, and lack of verification after changes.
How it works in real setups
Routers set routing, firewall, and network policies that determine what devices can reach and how remote connections behave. Smart devices add their own network clients and cloud or local control paths, which can change connectivity patterns over time. Remote teams also introduce more variables: different home networks, roaming devices, and varying browser/app behaviors. If your VPN or remote-access approach depends on specific routing and firewall behavior, then changes on the router (or firmware updates) can silently alter who can connect and what traffic can pass.
Practical context and consequences
A realistic scenario is a staff member who updates a router, enables a “convenience” feature, or adds a smart device while away from the office. Possible consequences include intermittent access for internal apps, blocked device-to-device communication, unexpected exposure of management interfaces, and outages that are hard to diagnose remotely. Another common limitation is operational performance: latency and throughput can vary by network, device, region, and time, so remote work may degrade even if the connection “looks established.”
Limitations to keep in mind
First, a VPN does not guarantee anonymity, safety, or access in every situation. Second, performance and availability vary by network conditions, device capabilities, provider behavior, and time. Third, claims about current capabilities or legal/empirical guarantees should be verified with authoritative, up-to-date documentation rather than assumed.
What to verify before relying on it
Use a staged checklist: confirm router firmware version and configuration settings, review firewall rules and port exposure, and test remote access from at least one representative client network before rolling out to everyone.