I recently sold a WRT54GS v2.1. The buyer emailed me saying when he brought up the MAC Address Clone page (WanMAC.asp) in the admin menu, the MAC address listed there was different than the one shown on the router sticker (the sticker address was the same as the MAC address shown on the box). Firmware version is 4.50.6. I asked him to run "arp -a" to double check the MAC address. He hasn't replied yet. Has anyone come across any similar issue where the MAC address listed in the admin menu is different than the one on the router sticker? Is there any possibility that the firmware is buggy such that the admin menu lists a wrong MAC address? The router was purchased straight from Fry's, all shrink wrapped and unopened. I'm positive it's brand new. So far, since the firmware is 4.50.6, I know that this router is v1-v3 (v4 and newer versions run a different firmware). Now the buyer is accusing me of replacing the router sticker with a fake one, which is interesting because I honestly don't know how replacing the router sticker would help you sell the router in any way. Thanks in advance for any comment/suggestion.