My daughter and I live in the same apt building its a turn of the century two-story brick building, she is on the main floor in the back and I am on the second floor in front, She has high-speed internet through a local cable company with the router set up in her place. I share the service via WiFi it is much slower than her service and that's fine for my needs. The problem is she recently upgraded her service and was sent a new router with all the newest technology now when I try accessing WiFi the speeds are all over the place they can jump from broadcasting over 100 Mbps to 1 Mbps. I am experiencing my browser freezing and pages never loading as it took to long or loading as text only. Is there a signal booster or range extender that would help resolve the problems. If yes, which brand and or type would you suggest?

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