My 5 years old Aztech DSL600EW ADSL2+ 4-Port Ethernet USB Wireless-G Router stopped working after I upgraded my Streamyx connection speed from 1 Mbps to 4 Mbps. It serves me well for the past few years. Initially, I thought something might be wrong from TM Streamyx part because Aztech DSL600EW DSL light started to blink and always get disconnected after changed to 4 Mbps port. Contacted TM support and TM appointed installer for this issue. And finally found that my Aztech DSL600EW cannot support 4 Mbps connection. Why? The new Innacomm W3400V WiFi Modem managed to get connected to Internet.