I' am happily running Tomato Firmware v1.28.7501 MIPSR2Toastman-RT K26 USB VPN on my Asus RT-N16 since months. All of a sudden I got Wifi disconnections although sitting close to the router. Checking out the router status, I have discovered that Tomato is issueing some interference problems (floating from acceptable to severe) I thought some cordelss in my house was interfering with the router, however when turned off the same interference level was reached. InSSIder shows no other network other than mine (country side): Code: MAC Address 10:BF:48:E6:37:9E Wireless Mode Access Point Wireless Network Mode Auto Interface Status Up (LAN) Radio Enabled SSID Casanova Broadcast Enabled Security WPA Personal (PSK) + TKIP / AES Channel 4 - 2.427 GHz Channel Width 40 MHz Interference Level (ranging from Acceptable to Severe) Rate (ranging from 1 to 300 Mbps, however mostly to 95) Now I thought my Internet receiver/transmitter (Mikrotik Routerboard) sitting on my house's roof, may be interfering with the the modem: Code: MikroTik RB/711A-5Hn-M Wireless 802.11N/A CPE Specifications CPU Atheros AR7240 400MHz network processor Memory 32MB DDR SDRAM onboard memory Boot loader RouterBOOT Data storage 64MB onboard NAND memory chip Ethernet One 10/100 Mbit/s Fast Ethernet port with Auto-MDI/X miniPCI none Wireless Built in 5GHz AR9280 802.11a/n card, 1 MMCX connector Extras Reset switch, Beeper Serial port none LEDs Power, NAND activity, 5 user LEDs Power options Power over Ethernet: 10..28V DC (except power over datalines). No power jack Dimensions 10.5 cm x 10.5 cm (4.13 in x 4.13 in) Weight: 67g Power consumption Up to 4.5W at 18V full load (0.245A) Operating System MikroTik RouterOS v4, Level3 license RX sensitivity 802.11a: ?92 dBm @ 6Mbps to -76 dBm @ 54 Mbps 802.11n: ?92 dBm @ MCS0 to ?73 dBm @ MCS7 TX power 802.11a: 23dBm @ 6Mbps to 19dBm @ 54 Mbps 802.11n: 22dBm @ MCS0 to 15dBm @ MCS7 Modulations OFDM: BPSK, QPSK, 16 QAM, 64QAM DSSS: DBPSK, DQPSK, CCK However the Mikrotik transmitter seems using 5GHz band..... I have started thinking about solar flares...... What do you think? Any idea?