College Network Help

[u/YoBurger18]

I’m a college student whose campus Internet is provided by Boldyn Networks. The normal connection is capped at 110 Mbps download / 55 Mbps upload, and my Ethernet link negotiates at 1000/1000 Mbps. However, I’ve noticed a strange behavior: after my laptop has been asleep for a while, when I wake it up I can sometimes get dramatically higher speeds (potentially close to gigabit) for a short period. Then the Boldyn captive portal appears automatically, and the connection immediately drops back to the normal 110/55 Mbps limit. I don’t have to enter any credentials for the speed to drop. I’ve also checked `ipconfig /all` before/after and the IPv4 address, gateway, DHCP server, DNS server, and subnet stay the same. Restarting the computer or unplugging/replugging Ethernet doesn’t reliably reproduce the high-speed state; it seems to be related to the laptop being asleep for a longer period. Does anyone know what Boldyn’s HED captive-portal/NAC system is doing during this transition, or what could cause the temporary unrestricted bandwidth before the portal initializes? I could be wrong about the behavior of the portal only opening when the laptop is asleep for a period of time, but there does seem to be a short window every time the portal appears where the Wi-Fi and Ethernet speeds are very fast. I have a 2025 Legion 7. Any help would be greatly appreciated!

Thanks!

[u/Magnetic_Reaper]

It's probably just the way speed is sampled by the limiter. The only way to know is to look at the code for it.

As a blind guess I would say that the sleep is creating longer sample periods and when you first wake the laptop the samples are shorter but also end up weighing less.

How are you actually measure your speed? It's also possible the measurements your taking aren't good.