Windows 7 Ultimate 64 bit - Changing MAC adress with MacMakeUp195d - Getting Error: Can't setup interface: (3):3758096949 !?
Hello, I'm getting weird error with MacMakeUp 195d , when I press CHANGE - pop's up error what says: Can't setup interface: (3):3758096949 !? Anyone know how to fix it? I'm using Windows 7 Ultimate 64 bit
June 23rd, 2010 3:24pm

Hi, I suggest reinstall the software. Right click on the .exe file and choose "Run as administrator" to avoid incompatible issue. Meanwhile, you have two ways to manually change it: 1. Control Panel->device Manage->Network Adapter->Adv.->Network Address, put some values in the text box 2. Change the register key value, like link here: http://www.windowsreference.com/networking/how-to-change-mac-address-in-windows-registry/ Regards,Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.
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June 28th, 2010 4:36am

N.Eee wrote on another thread; I don't think it's a bug, is intentionally made... MAC address: "XY-XX-XX-XX-XX-XX" "X" can be anything hexadecimal. The hexadecimal "Y", written in binary format, is Y: "kmnp", where "p" is the least significant bit; p=0 --> unicast; p=1 --> multicast; n=0 --> globally assigned MAC; n=1 --> locally administered; So, actually MAC can be changed not only to 12-XX-..., but to any combination in which p=0 and n=1; "Y" can be 2, 6, A or E. I think it can be tweaked in registry, since it apply only to Wireless, not to Ethernet adapters. But I don't have much time to experiment. http://en.wikipedia.org/wiki/Talk:MAC_address With Windows 7 MS has apparently made their code compliant with the spec by disallowing any change to the MAC address that doesn't; a) have the locally administered bit set, and b) not have the multicast bit set. [edit] Come to think of it, you shouldn't be able to manually configure a MAC address with the multicast bit. Those MACs are only added through using the multicast socket API.
June 8th, 2012 4:51pm

N.Eee wrote on another thread; I don't think it's a bug, is intentionally made... MAC address: "XY-XX-XX-XX-XX-XX" "X" can be anything hexadecimal. The hexadecimal "Y", written in binary format, is Y: "kmnp", where "p" is the least significant bit; p=0 --> unicast; p=1 --> multicast; n=0 --> globally assigned MAC; n=1 --> locally administered; So, actually MAC can be changed not only to 12-XX-..., but to any combination in which p=0 and n=1; "Y" can be 2, 6, A or E. I think it can be tweaked in registry, since it apply only to Wireless, not to Ethernet adapters. But I don't have much time to experiment. http://en.wikipedia.org/wiki/Talk:MAC_address With Windows 7 MS has apparently made their code compliant with the spec by disallowing any change to the MAC address that doesn't; a) have the locally administered bit set, and b) not have the multicast bit set.
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June 9th, 2012 4:46pm

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