We have only had issues with the ZTE router. We had to reset this router on a daily basis to ensure that it is connected properly. It also keeps on dropping the signal more than twice a day and some times for extended periods of time or until the router is reset. Wifi printing was also affected as the router would not be responsive when the print request was sent, resulting in the document not being printed.
We have switched to Huawei B612 router which has since installation not given any issues whatsoever.
