Do you have the TF101G (3G) or the TF101 (non 3G) device?
TF101G firmware is 8.6.6.x
TF101 firmware is 8.6.5.x
If you want to get the 188.8.131.52 flashed, it may be difficult. You will have to root again and use one of the flash back to stock links in my signature. If your serial starts with B7O or later the flash instructions will put you on a US version of firmware.
The easy solution (even if you have a TF101) is to flash the 184.108.40.206 firmware from the website for the TF101G: