Problem reconnecting WIFI (no ip adress)

I have a terrain on which a bulldozer rides to load material in  trucks
In the bulldozer there’s a Windows 7 based touch panel
I have 2 access point PSION 9160 which cover most part of my terrain.
They both have same SSID, same static 64 bit WEP key and different wireless channel (7 and 13)
I use wireless mode 801.11b.
I often have a problem when the bulldozer rides to far from the access point, the touch panel loses his connection (which is normal, because he's out of range)
When he is back in the range of the Wi-Fi, is looks like the TCPIP  connection is not active / rebuild (Wi-Fi is OK but I cannot ping the device
The only solution is to reboot the PC
MolenBelgiumAsked:
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Dan CraciunIT ConsultantCommented:
Who assigns the IPs? Does the Windows 7 machine use a static IP?
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MolenBelgiumAuthor Commented:
no static IP, DHCP with a reservation (DHCP router cisco domain controller)
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Dan CraciunIT ConsultantCommented:
OK. Try with a static IP.
If all is well, then the DHCP is the problem.
If the problem persists, then you can suspect the access points.
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MolenBelgiumAuthor Commented:
i've tried static ip, same problem
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Dan CraciunIT ConsultantCommented:
If you use "Troubleshoot problems" from the right click menu on the network icon (don't know how you get to it with a touch panel), the problem resolves it self?

You can start the network troubleshooter from Control Panel->Network and sharing center->Troubleshoot problems
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MolenBelgiumAuthor Commented:
Not resoved
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MolenBelgiumAuthor Commented:
Not resoved
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