[RESOLVED] complicated timer loop

[markhorgan1]

i have the following code to ping a list of switches , basically i want to add a timer to run at the end once the pings are finished and when the timer reaches a pre-determined value (long frequency) i want the ping process to start again , i want this process to keep repeating until btnoff is pressed. im having trouble because the code uses multithreading and ui threads whcih im not too familiar with.

ive tried adding in the timer below which ive commented out because it was giving an error when the pings were completed.
any ideas ?

**code is posted below