Have to disable Wireless MAC filter to see other computers

I have two Windows 7 machines connected by wireless-N to my WAG160N. I frequently find that, although both computers can see the network, they can't see each other. I can temporarily solve this problem by disabling, and then re-enabling, the Wireless MAC filter. Any suggestions welcome
Solved!
Go to Solution.

Unfortunately just leaving MAC filtering off doesn't help. I have to turn it off and then it on again every time. As soon as I turn it on again the other computer becomes visible. Here are my settings:
Encapsulation: RFC 2364 PPPoA
Multiplexing: VC
QoS Type: UBR
Autodetect: Sisable
Virtual Circuit: 8 VPI, 48 VCI
DSL Molulation: Multimode
DHCP Server: Enable
DDNS Service: Disable
MAC Address Clone: Disable
NAT: Enable
RIP: Disable
Wireless Configuration: Manual
Network Mode: Mixed
Radio Band: Standard - 20 MhZ Channel
Wide Channel: 4
Standard Channel 11-2.462 GHz
SSID Broadcast: Enable
Security Mode: WPA2-Personal
Encription: TKIP or AES
Pre-Shared key: <something long>
Key renewal: 3600 seconds
AP isolation: Disable
SPI Firewall Protection: Enable
Filters: nothing checked
Blok WAN Requests: Block Anonymous Internet Requests
UPnP: Enable
Management via WLAN: Enable
IGMP Proxy: Disable
Firmware Version: V1.00.15

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Have to disable Wireless MAC filter to see other computers

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