Agreed that forcing the LAN port speed to 100Mb is a bad workaround.
The better temporary solution (you may be an expert) is for the WAP to
advertise the capability of 100Mb FDX in autonegotiation. I believe
autonegotiation will then bring the connection to 100Mb AND full duplex.
Autonegotiation advertisement is pretty powerful.
Bottom line I also agree the WAP4410N should not stop responding
in any conditions especially in Gigabit mode since a standard feature
of the WAP4410N is the Gigabit Ethernet LAN interface.