well, i have only read the first page, but, i am already convinced not to download this beta, i have 1.20, and it is running fine, at one point when i was connecting a PSP it went offline, so i did a hard reboot, as far as signal loss, ever since i put a set of HawkingTech's [HAI7SIP] Hi-Gain 7dBi Omni-Directional Antenna, i have not had any, i stress, ANY loss in signal. as stated from their website...
"Hawking Technologies™ HAI7SIP, 2.4GHz Hi-Gain WiFi antenna boosts your wireless signal strength from 2dBi (standard power) to 7dBi."
i have three of these. and i have not had any issues, soon i will get one more signal amplifier, i have two right now... DIR-625 is what i used before, i had an extra antenna, so when i got the DGL-4500, i already had the antenna's replacements. soon though, i will be blasting my signal.
those of you who are suffering this signal loss, i recommend you take a trip over to HawkingTech for their range boosting antenna's, D-Link for the routers, HawkingTech for the Antenna's.
Hawking Technology's Hi-Gain 7dBi Omni-Directional Antenna
http://www.hawkingtech.com/products/productlist.php?CatID=32&FamID=58&ProdID=214