I had the same issue with my H112. If you download the Huawei Smart Life app on your phone, connect to the wifi and put in the password on the bottom of the router it should work first time and then it will ask you to change the admin password.
I can get it to my computer but for some reason it takes 4-5 attempts for it to work (it will block you for 2min if you put in the 'wrong' password twice).