I know this is basic but...
/* referring to a device with integrated features */
Let modem be:
a modem/router/access point device
We have a cheap modem from our ISP with an internal antenna. Unfortunately, it's weak (the signal seems to be directed upward the gadget). We are planning on getting a strong modem (or at least an AP). After giving it some thought, if the modem wasn't able to reach the laptop, how likely is it that the laptop can not reach the modem either? So replacing the modem with a stronger one isn't really a solution because only the new modem will be able to reach the laptop but the laptop won't be able to communicate back?
If so, what would be a better solution?