I upgraded from the USB760 modem to the 4510L about 10 days ago both verizon, speeds where the same about 1mb+ switching over and everything was smooth as silk till about 4 days ago then suddenly the speeds hoover at or below 320k down 3G area, 4G wont be in this Area of Cali (mojave desert till mid 2015 according to a tech) which is a waste of you ask me, Tmobile is already poping in 4G here and verizon dominates the high desert **bleep** lol.
Anyway, I have reset the modem to defaults, i did a clean install of the whole motherboard chipset, updated and optimized my NIC's both wired and wireless, did tons of speed tests and relocated my wireless antennas to get 99% signal modem is 5 feet away, I even connected my wireless G & N NICs to my home wireless and pulling 1.5mbs down and I even connected to a unsecured wireless across the street pulling 7.2mb down 2.2mb up so i no its not my PC in anyway so far not ruling it out though.
its really frustrating me and for no reason what so ever it just dies out to speeds that are so slow i really want to toss it in the trash and never pain a cent. I am temped to revert back to my usb760 since i have a 30 day return if I don't like it and I am heading that way fast, so what it going on?