Cannot connect to qrexc agent for 60 seconds see /var/log/xen/console/ques-sys-net.log" for details

Hi, i have installed qubes as a main machine, but i can’t open any app or programs , when i try to open any program it will give me error saying Failed to start , please help me to solve this issue

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What hardware did you install Qubes OS on?

Hi, Thank you for your great help , I can’t find the error running more /var/log/xen/console/gues-sys-net.log because there many lines, but when I run this command from dom0: xl dmesg | less, it show me these errors in the end:

(XEM) Dom0 has maximum 4 VCPUs
(XEM) initial low memory Virg Threshold set at 0x4000 pages.
(XEM) Scrubbing Free RAM in background 
(XEM) std. Loglevel: Errors and warnings 
(XEM) quest Loglevel: Nothing (Rate-limited: Errors and warnings)
(XEM) *** Serial input to DOM0 (type 'CTRL-a' three times to switch input)
(XEM) Freed 664KB init memory 

If the problem comes from these errors Please help me to solve it by dom0 and qubes desktop, and I prefer dom0 if it possible.
By the way my device total memory is 16
Thank you

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Hi, Please what is the solution ?

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I do not have enough information.

Solution is only possible with more information about the problem.

Are you able to tell what hardware you have?

Do you know which options you chose during installation ? Did you change any of the options, or did you accept the configuration which was proposed ?

Most of the VMs require sys-net before they can start. Can you start a VM with network=‘none’ ? For example, did you try to start the Vault qube?

When you look at xl dmesg, it gives mostly information.
Do you see messages about the IOMMU ?
If there is no IOMMU, or no virtualization, then there may be a problem with the BIOS/UEFI configuration.