Phoenix42, now that you say that, I believe so! I remember reading about those way before I decided to purchase mine, so maybe I should look into that! Do you happen to have any reference?

Thank you all for your help. I'll also try to get in touch with Linksys. WAG54G happen to be already an old model, since v.2.0 (different hardware, so no firmware update possible) has just been released to support ADSL v 2/2+. Since I don't need it I decided to go with the current, more stable version, and avoid just-released products and their firmware bugs. Ironic, isn't it...