but will an ethernet about 25-28m long slow down my connection too much?
hey pagey
the ethernet standard is to allow 'lossless' transmission up to 100meters (around 300 feet). Any good quality cable below that length should be perfectly fine. If you are experiencing any network issues - i would change the cable and see if they still happen. although cables can sometimes be the cause of poor network connectivity, its fairly unlikely, and i suggest having a look at the other components of your home network.
cheers,
neth