Since upgrading to ios 6.1 on my ipad mini I have been having some really annoying wifi issues, it continuously disconnects and reconnects to my wifi network, on top of this I am getting really slow download speeds when I test it on the speedtest app, usually I would get about 40-50mb download and 10-20mb upload but since upgrading I can now only get about 4-5mb download and about 5-8 upload, I have tested this on my iPhone and MacBook and they are perfectly fine no speed loss or disconnections so I know it's not my wifi box, is anyone else having this issue and if so has anyone found a solution to fixing it?