About 1-3 times / day the internet connection hangs. When I then try to login to the internet again at my ISP:s loginpage (login1.telia.com) it says "The end system's IP is invalid." Then I have to restart the gateway so I can login. This is VERY annoying. I've tried a several firmware-versions. I'm 100% sure that I have tested these and they don't fix the problem: WAG54G-SE_AnnexA_ETSI_v1.01.6_0209_code.bin WAG54G_AnnexA_ETSI_v1.02.7_03_code.bin WAG54G-AU_AnnexA_ETSI_v1.02.9_04_code.bin WAG54G_AnnexA_ETSI_v1.03.0_beta4_00_code.bin (works worst) Should I go back to the seller with this shit? Have I wrong settings (I don't think so)? Thanks in advance!