What hotel WiFi does to a trading session
Hotel networks are shared infrastructure. Every guest, every device, every streaming session is competing for the same uplink. During busy periods — conference mornings, evening check-ins, breakfast rushes — that shared capacity shows up as jitter on your trading session even when the raw speed looks acceptable.
The second problem is how some hotels handle non-browser traffic. Deep packet inspection and traffic shaping are common in managed networks. Non-standard TCP patterns — which include the persistent connections that MT4 and MT5 use — can be deprioritised or intermittently interrupted without the network appearing broken from a speed test perspective.
What actually helps when the hotel is your only option
The 5GHz band on hotel WiFi is almost always less congested than 2.4GHz. It has shorter range, which means fewer devices compete on the same channel. If the hotel network shows separate 2.4 and 5GHz SSIDs, use the 5GHz one.
A proxy routes your trading traffic through a stable exit node. The hotel WiFi is still the first hop, but from that point the route becomes predictable. Instead of your MT4 session travelling through whatever path the hotel's uplink uses, it exits through a node matched to your broker's data centre. That is how the priority route helps on hotel WiFi — not by fixing the hotel's internal network, but by making the rest of the path clean and consistent.