I host my personal WP site on my own Windows Server 2019. It runs under IIS/PHP (no Apache).
At about the same time I installed WP/PHP and started configuring my site Remote Desktop (RD) started to freeze intermittently. What I mean I can see the picture but the clock on the remote is stopped some time ago and it doesn’t react to mouse/keyboard. If I close RD client and connect again everything works for a while until it doesn’t.
WP site is fully responsive when RD is frozen.
My client PC is fully up to date Windows 10 machine. Remote server is up to date with latest updates.
FWIW: I can remain connected to my work desktop via Pulse Secure RD client all day long without a single disconnect. So this is probably not my internet connection.
Of course this can be just a coincidence but I’ve never had this problem until recently even when I used RD for extended time periods. However, I never had PHP/WP until about 3 weeks ago which is about when the problem started.
Can these RD freezes be related to PHP/WordPress installation and activity from WP site?
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Probably not, but windows server is a janky piece of shit, so who knows?
This is just one of those things that you’ll have to troubleshoot for yourself. I mean, have you at least tried stopping all the relevant services such as IIS and MySQL to see that improves or solves the RD problem?
This is a tough one to debug. The first question would be if this is a processor or a networking issue. Or that the problem is on the server or the guest.
Given that RD is frozen, not sure if there is a way for you to be looking at the task manager. So to verify whether it’s a processor issue or not, maybe a simple PowerShell script to capture processor usage when this happens can provide that info.
You can start eliminating from there.