The only way to resolve the wifi problem with the Cisco RV160W OR RV260W is to disable wifi completely and have another router be the primary wifi base station, connected through a wired connection.I would have to disable/renable the wifi every 24-36...
The RV160W also has the same problem and I downgraded the firmware to see if that resolved the problem but it did not. Something is seriously wrong with this line of products and Cisco should address it, soon.