Internet very slow upon waking from sleep

I have a Thinkpad T530 and when I wake from sleep, the computer wakes pretty quickly but the internet is very slow for a few minutes. The weird thing is that it does not seem to be completely off, but pages that normally take a couple seconds or even a split second (like gmail emails) will take a minute or more to load (or times out) for a couple minutes following waking from sleep mode. Even after one page finally loads, loading a new page can still take a similarly long time. This behavior is quite consistent for all attempts to load a page every time I wake from sleep. Other than the internet, the computer seems perfectly responsive. Is this normal? Any way to fix it?