openvpn連不上了

之前我在TL-WR1043N上設定openvpn server，NB裝openvpn client on windows 7，在外面都可以順利連線。
(server設定為bridge mode：
server-bridge 192.168.1.1 255.255.255.0 192.168.1.202 192.168.1.205)

但是換成windows 10後(openvpn 2.3.11)，卻發現連不上，會出現如下訊息：
Wed Jun 22 00:05:28 2016 PUSH: Received control message: 'PUSH_REPLY,route-gateway 192.168.1.1,ping 10,ping-restart 120,ifconfig 192.168.1.202 255.255.255.0'
Wed Jun 22 00:05:28 2016 OPTIONS IMPORT: timers and/or timeouts modified
Wed Jun 22 00:05:28 2016 OPTIONS IMPORT: --ifconfig/up options modified
Wed Jun 22 00:05:28 2016 OPTIONS IMPORT: route-related options modified
Wed Jun 22 00:05:28 2016 WARNING: Since you are using --dev tun with a point-to-point topology, the second argument to --ifconfig must be an IP address. You are using something (255.255.255.0) that looks more like a netmask. (silence this warning with --ifconfig-nowarn)
Wed Jun 22 00:05:28 2016 do_ifconfig, tt->ipv6=0, tt->did_ifconfig_ipv6_setup=0
Wed Jun 22 00:05:28 2016 MANAGEMENT: >STATE:1466525128,ASSIGN_IP,,192.168.1.202,
Wed Jun 22 00:05:28 2016 MANAGEMENT: Client disconnected
Wed Jun 22 00:05:28 2016 There is a problem in your selection of --ifconfig endpoints [local=192.168.1.202, remote=255.255.255.0]. The local and remote VPN endpoints must exist within the same 255.255.255.252 subnet. This is a limitation of --dev tun when used with the TAP-WIN32 driver. Try 'openvpn --show-valid-subnets' option for more info.
Wed Jun 22 00:05:28 2016 Exiting due to fatal error

看起來好像client讀不懂server push下來的server-bridge訊息，我應該去改哪邊的設定？