The problem is that HP writes drivers and software for those things for Windows, but not for Linux, so Linux depends on random people to write software for those things for free (which often involves complex reverse-engineering). With Linux you need to make sure you use widely-used hardware that someone has already written support for (this is mostly applicable to laptops and peripherals, which often use custom non-standard hardware). There may be a way to fix your problems, but you'll have to search forums or issue trackers for the solutions, and they're probably pretty involved to get working correctly. The router crashing thing is probably just a coincidence though, or the laptop is using a feature that's broken on your router.