if i set the packet threshold to the exact same value for all 3 of low/medium/high in dos protection - does it matter what i choose? i.e: medium tcp at 3000 packets is different or the same as high tc

the setting for "record motion that lasts at least" with the slider resets to 1.0 seconds after: a power cycle, a wifi drop, and also just at random times to reproduce: drag slider to 2.0 seconds wait

can anyone recommend me a known working usb modem that'll work with uk networks like three or ee on my vr2800*? preferably as fast as possible, but *reliable* i looked on the tplink list but it's blan