Download von Server klappt nicht

IMAGEDIR=/media/hdd/build/upload-image
MODEL=dm800sev2
DATUM=$(date +%Y.%m.%d)
EXTRACTDIR=/media/hdd/build/clone-image
UPDATER=/media/hdd/build/clone-image/OpenATV-5.1-${MODEL}-$DATUM/image/usr/lib/enigma2/python/Plugins/Extensions/update-plugin
SCRIPT=/media/hdd/build/clone-image/OpenATV-5.1-${MODEL}-$DATUM/image/usr/lib/enigma2/python/Plugins/Extensions/update-plugin/scripts
if [ $MODEL = "dm800sev2" ]; then
echo "Downloading Open ATV-5.1 image ${MODEL}"
OPENATV=`wget -O- -q "http://xxxx-xxxxx.com/Image/ ${MODEL}" | grep openatv-*.*-${MODEL} | tail -1 | sed -e 's/<\/a.*//g' | sed -e 's/<[^>]*>//g' | sed q | sed -e 's/.*openatv/openatv/g' | sed -e 's/\.nfi//g'`
URL="http://xxxx-xxxxx.com/Image/${MODEL}/${OPENATV}.nfi"
echo ">> Bitte warten >>"
cd $IMAGEDIR
wget -q -U 'Mozilla/5.0 (X11; Linux x86_64; rv:2.0b9pre) Gecko/20110111 Firefox/4.0' -O OpenATV-5.1-${MODEL}-$DATUM.nfi $URL > /dev/null 2>&1
echo "Please wait >> Bitte warten >>"