Is it possible to downgrade the GW2000 to an older firmware version? I upgraded mine from 2.1.3 to 2.2.4 and quickly realized it was a mistake.
The GW2000 is connected to both ethernet and wifi. Wifi was necessary because version 2.1.3 didn't have a wifi on/off setting, so connecting it to another AP was the only way to stop it from broadcasting its own AP.
With firmware version 2.2.4, when the GW2000 is connected to both ethernet and wifi, it stops responding to ethernet requests after 20-30 minutes since the last reboot. It seems to drop all incoming packets, because it has no trouble sending UDP broadcasts over ethernet to port 59387 every 2 seconds and multiple ARP requests for the default gateway IP in short bursts about every 30 seconds (even though it receives ARP replies every time, it just ignores them). Any HTTP requests via ethernet are ignored, ICMP as well. Sensor data cannot be read either (port 45000). Over wifi, sensor data can still be read from port 45000, but the HTTP server is very slow to respond and frequently times out when serving axjs.js (which is the largest resource on the page, about 13 kB uncompressed).
With wifi turned off it works for a little longer, maybe 50 minutes. Then it stops responding to requests over ethernet again. The only way to reboot it at this point is to power cycle it. This could indicate a memory leak in the firmware: it runs for a longer time when wifi is off, presumably because there's more memory available and it takes a bit more time to fill it up.
Version 2.1.3 was working fine. I upgraded because I was trying to get rid of the UDP broadcasts on port 59387. Lesson learned.
If anyone knows a way to downgrade these things to an older version, please let me know. Thanks.