Router ip address is static...192.168.1.1

Laptop ip address remained the same....192.168.1.101

I have two desktops. Only one desktop with IPERF installed. I
disconnected the 2nd desktop just before rebooting the router. This is
why the ip of desktop, running server mode IPERF, was changed from .102
to .100

(Before reboot of router) desktop ip...192.168.1.102
(After reboot of router) desktop ip...192.168.1.100

Both these commands were issued from wireless laptop(.101) to desktop
(iperf -c 192.168.1.102)...1st test...26.9 Mbits/sec
(iperf -c 192.168.1.100)...2nd test...7.51 Mbits/sec

wired laptop connection thruput...90Mbs

I might need to tweak Network mode, CTS Protection mode and Channel
settings in my Router Configuration. Currently 5 other wireless
networks are within broadcast range of my router. It looks like a lot
of my neighbors are into wireless networking.