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ISA, WIFI or XP? - 30.Apr.2007 12:59:13 PM

JesusisLord

Posts: 64
Joined: 19.Aug.2006
Status: offline

Dear All,

I'm having some weird problems on my Network and I'm not sure whether it is to do with the ISA firewall (probably not) the wifi point (I got a feeling it could be this) or Windows XP (it's also possible that XP is the problem).

Basically there are some wifi points at my place of work, and I can connect to the wireless network on a good number of them (NIC set to obtain IP) but then there are a few wireless access points that where the signal strength is very good but it can't get an IP. (At this point I checked ISA for DHCP requests on the network and they were getting denied) but as soon as I gave a static IP to the client it can connect to the wireless network so my thoughts then were that it is either the access point or ISA.

I have then added a rule to allow dhcp requests and replies from all networks including local host to al networks including localhosts but this hasn't solved anything.

Why I think that the problem could be to do with XP settings or network settings for the domain is because a person at work has windows Vista and he has no problem getting an IP address and getting on the wireless netwok, but no XP client can, regardless whether it is on the domain or not. (The Vista client isn't on the domain).

I haven't really a clue what is causing it,I can't really get much from the logs because internal to internal communication isn't going through ISA I believe, unless of course I go to the network properties in ISA and say that users can't access directly the IP addresses in networks tab but that doesn't really solve me problem.

I'm going to check the AP settings, but if anyone has any ideas I would be very grateful. (PS the DHCP server is running under Windows, the wireless access points just have static IPs).

Kindest Regards

JIL