Possible solutions:
1. Run the client from the Green Icon so that it will get the latest update
+Resistant have added the "run from updater/launcher in his main.exe" most likely you will get dced if you dont run your main from green icon launcher
2. go to infinitymu folder > find main.exe > right click > select properties > Compatibility tab > ccheck "change settings for all users" when prompted just click yes, check "run program in compatability mode" > choose windows xp SP3 > check "run program as administrator" > Select Apply > Close
3. go to infinitymu folder > find mu.exe > right click > select properties > Compatibility tab > ccheck "change settings for all users" when prompted just click yes, check "run program in compatability mode" > choose windows xp SP3 > check "run program as administrator" > Select Apply > Close
4. go to infinitymu folder > find Autoupdate.exe > right click > select properties > Compatibility tab > ccheck "change settings for all users" when prompted just click yes, check "run program in compatability mode" > choose windows xp SP3 > check "run program as administrator" > Select Apply > Close
5. Google "Speed Connect Internet Accelerator" find the cracked one > Install > Apply Crack > Run as admin > ****yze Settings > Optimized Settings > Apply > Restart > play
6. Put your anti virus off or just manage exceptions in your antivirus.
*your friend DCs a lot because of either intermittent connection or just poor game connection.. most probably