Asus dsl-ac68u ac1900 modem router. archive i was a happy user of tp-link 8960n for a great many years... recently, i made the decision to upgrade it to an asus dsl-ac68u dual band modem router (the first batch of these in the world, so i was told), mainly due to the hope of getting better wireless connections (have 1x ipad and 1x iphone. Have recently bought an asus dsl-ac68u wireless modem router and tried to set it up on my existing plusnet adsl line, but with no success. my adsl line works ok with my previous belkin n wireless modem-router. i connect the asus in place of the belkin and the dsl light on the asus flashes a few times but then goes out.. Asus dsl-ac68u - dual-band wireless-ac1900 gigabit adsl/vdsl modem router.