After logging in to my Umbraco backend, everything is working as it should be. But if I open two instances of same in browser then after a few minutes, all Umbraco activities result in never ending load. If I try to expand content nodes, they just keep on loading and never expand. Same for all the sections. If I try to reload the Umbraco instance, then it shows the loading animation but never gets opened. Though after clearing browser cache and reloading Umbraco fixes the problem, I have to do it a lot of times. Any idea why this could be happening and what could be the fix? Could it be a browser related problem as I've noticed this happening on chrome only that too only in my client's network.