Recently my wireless network has being stopping to transfer data from some irregular time intervals that vary from 30 seconds to 20 minutes, and every time I need to plug off and then on the wireless adapter.Using ping (ping 8.8.8.8) to see what happens, and when data transfer stops I receive this message:ping: sendmsg: No buffer space availableSo I found out that a solution for this is to increase buffer size with this command:sudo echo 83886080 > /proc/sys/net/core/wmem_maxAlthough I can't execute this command, when I hit enter I get this:bash: /proc/sys/net/core/wmem_max: Permission deniedTrying the command without sudo or with gksu returns the same message. Through GEdit I can open /proc/sys/net/core/wmem_max file, and opening as administrator it enables me to click the 'Save' button, although after changing the value and hitting the button it returns me this message:Could not create a temporary backup file while saving /proc/sys/net/core/wmem_maxgedit could not backup the old copy of the file before saving the new  one. You can ignore this warning and save the file anyway, but if an  error occurs while saving, you could lose the old copy of the file.  Save anyway?And even clicking in the 'Save anyway' button it returns the very same message.
Can't edit /proc/sys/net/core/wmem_max
permissions;sudo
Your sudo command does not write the data as root. Only executes echo as root.Trysudo -s -Hecho 83886080 > /proc/sys/net/core/wmem_max