Ask for a current speed test
Request a screenshot taken from the actual unit rather than the building lobby or a different apartment. It should show download, upload and latency, not only one headline number.
A very old result is less useful because providers, routers and tenants change. Recent evidence reduces uncertainty.
Upload speed matters for work
Video meetings, cloud backups and large file uploads depend heavily on upstream capacity. A connection that streams movies perfectly can still struggle during a presentation.
Latency and packet loss matter too. Stable response time is often more important for calls than an enormous maximum download speed.
Ask whether the landlord can provide the name of the internet provider and plan, not only a speed result. That helps distinguish a genuine fixed connection from a shared mobile router or building-wide system. If the provider is known, you can also check whether outages or maintenance are common in the area. The point is not to perform a technical audit of a rental; it is to know what infrastructure your job will depend on.
Test where the desk will actually be
Wi-Fi can be strong near the router and poor in a bedroom behind thick walls. If possible, test from the intended workspace or ask the host to do so.
Wired Ethernet may solve some problems, but only if the unit has a usable port and the work setup can reach it.
Check evening performance and outage behavior
Shared networks can slow down when everyone returns home. A test during the busiest evening hours can reveal congestion that a morning screenshot misses.
Ask what happens during an outage: whether there is another provider, whether mobile signal is strong and how quickly the landlord normally gets service restored.
Video evidence can help when testing in person is impossible. Ask the host to run the test while connected to the apartment Wi-Fi and show the room, router and result in one continuous call. This is not foolproof, but it is harder to fake than sending an old screenshot. For an expensive multi-month booking, a few minutes of verification is reasonable when internet quality directly affects the ability to earn income.
Keep a cancellation or backup plan
For an important first month, flexible booking can be worth more than a small discount. If the internet is materially different from what was promised, the ability to move matters.
Bring a mobile data backup and test it in the unit. The combination of one good fixed line and one independent cellular network is much safer than either connection alone.
Router access can matter during the stay. If the landlord controls the router in another unit or refuses to allow a restart, even a minor technical problem can become slow to solve. Ask whether the router is inside the apartment, whether you may reboot it, and who provides support. This is particularly useful for long bookings where the connection will be used every workday. A modest but controllable setup can be easier to live with than a theoretically faster network managed by someone who is rarely available.
For very important stays, ask whether the provider offers a service-status page or whether neighbors use the same network. Local information can reveal recurring evening congestion or outage patterns that a single test cannot. The objective is not certainty—no connection is perfect—but enough evidence that the risk is understood before a large nonrefundable booking.
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