Quote from: examplens on October 11, 2021, 08:17:40 PM

Well, with an increasing number of validators, the network becomes significantly weaker and more unstable. Today, just 5 minutes before validation, my node going to be unsynced and offline with zero blocks remaining. there was no chance of passing the validation with him.
Now it's suspended, what to do with them? Can I withdraw the locked balance from the stake, or I can only to delete everything and start over?

Thanks for the node log.

Your node lost connection during flip lottery
INFO [10-11|13:26:39.561] Peers are not found. Assume node is synchronized component=downloader
INFO [10-11|13:26:39.562] Flip lottery calculations started
INFO [10-11|13:26:44.562] Peers are not found. Assume node is synchronized component=downloader

Then restarted 2 times, first time on validation start
INFO [10-11|13:29:31.122] Idena node is starting version=0.27.2

And second time 18 min after validation started
INFO [10-11|13:48:41.085] Idena node is starting version=0.27.2

Here are suggestions for running Desktop App with built-in node:

Check your internet connection quality here. If your connection is graded A or B, you have good connection. If it's C or worse, it is bad. If you are connected via Wi-Fi, try connecting using LAN cable and check connection again. If your connection is still bad, you MUST use Web App for validation.
If you are using Windows OS, you must install free software NetTime which will keep your clock in perfect syncronisation which is important for validation.
Make sure you turn off any other aplication that are using internet.
Do not use Wi-Fi, connect your PC with LAN cable.

Lost peers would be explained by bad internet connection. Node restart would be explained by low ram or slow cpu.
Where did you run your node? What are it's specifications?
Please do that connection test and share it's results.