only 75% mining share was valid on supernova pool, 25% is invilid........... i think its too much invalid share ....
That is me, i dont know why.

Are u using Nicehash? On the dedicated nicehash Port?
no i used miningrigrental, i pointed them to another pool and they worked fine there but the time finished

hmm ok there should be no problems from MRR, as I rent the rigs there too, maybe you try the dedicated nicehash and the "normal" port next time, one should give good results, it is because of the scrypt ASIC's, they always have problems with difficulties.
i have tried now on port 7208 but problem is bigger. i get 50% invalid. now im testing on anther pool to see if the problem is from rig.
Tell me if it is better which diff you see in the nicehash Frontend on the other pool and I will try to configure another Port with a similar diff
Other pool shows 100% valid, Diff is 4,096.00
Hmm, i will give it a try on 7028 with the same diff
EDIT: 7028 now runs with 4,096 too, should be ok, my tests give about 95% valids with that static diff, but you need to wait about 1 minute until everything stabliizes.
supernova sucks no diff between 7207/ 7208/ or 7028 .... i don know why lots of share invalid, i thik we are mining and pool taking our coins.... better off ur pool, why we paid or 50% of mining share to u
Like i explained before, nicehash (asics) are having difficulties with certain setups, that's why some rentals are having Problems with invalids.
It is so funny to always hear "pool is taking our coins".. How should I with invalid shares? I'd need VALID shares

Ask nicehash to fix their systems or rather the ASIC vendors to fix their firmware for use with variable diffs.
7208 is now fixed at Maximum 4096 which wasis fine for my nicehash Tests.