TP-Link for example had an issue and mind you that it was specific to a make/model device. Your failing device could have updated the Android and then we have all the other Android nuttiness to deal with. But Samsung tends to program by the book. http://www.tp-link.us/article/?faqid=510 so your extenders/WAPs and such could run afoul of such an issue.

Getting makers to fix it, well, that's rare.
Bob