Host has another meeting in progress

Is 'Zoom' not at all interested in fixing a problem that is extremely embarrassing for meeting hosts? Why is there no 'Zoom' help centre when they are making billions?

This happened to me yesterday, I was having a webinar with 16 attendees. I opened the link in Zoom telling me it was 14 minutes until the meeting will start and no one of the invited entered the meeting... I did experience this before, so I quickly ended the meeting, found the link I send the attendees and opened the Zoom-meeting again, and then it worked. BUT, only 3 of the 16 invited came into the meeting because of this trouble... so we actually lost sales because of it!! Zoom admin needs to address this issue, so we don't do the same mistake over again...  

I don't know for sure what to do, as I haven't experienced a similar problem.
However, since many of you seem to be having trouble, you may want to try the following methods, if I were to guess.

If your participants are experiencing this problem when trying to join from a URL link, they may want to try joining from the Join Conference menu, using the meeting ID and passcode.

Reason for guessing
There are three ways for panelists to participate in the webinar.
1) Join via the URL link for panelists
2) Join via the URL link of the webinar for a attendee
3) Join via "Join" menu with meeting ID and passcode
We have experienced problems with certain panelist joining via method 2), where he join as attendee and cannot be promoted to panelist even if the host manipulates him. When we asked that panelist to participate using method 3), we were able to promote him to a panelist after his participation.
Another panelist can participate using method 2) and be promoted to panelist without any problem.

In the case of meetings, there are two ways to join, via the URL link and via the meeting ID.

I hope your issue is solved when trying to join from a URL link, participants may want to try the method of joining via the meeting ID and passcode.

This doesn't help.

I am having the same issue as everyone else on this forum. I deleted my Zoom app on my phone, so I am signed out of my Zoom account. All of my clients can't join my meeting because the same message occurs: "Host has another meeting in progress" My clients are getting frustrated, and I think I will end the paid subscription and only use the free option since that isn't happening there. I am shocked that Zoom is not addressing this issue, and you will lose many customers. They are frustrated because they are trying to run a business!

The same message occurs even if only using a single device. I (the host) am sitting at my computer (my only device using Zoom) with Zoom open waiting for participants to appear. They however get the message above, but Zoom doesn’t tell me this. Eventually someone  texts me and tells me they can’t join.  I have to quit zoom and relaunch the meeting to let participants in.  Strange. Confusing. 

If you are still having this problem, I found a fix.  You will want to go to the Zoom website page that has Personal and Administrative headings on the left side.  Under Personal, click meetings on the left.   Then click Personal Room across the top headings.  Towards the bottom of the page is a START in blue.  Clicking that will take you into your room and hopefully it will work.  It did for me.

I had the same issue.  I taught a class for six weeks; auto-reply with zoom id was identical for all students that enrolled.  About 25% of my students got the 'host has another meeting in progress.' completely random.  no consistency between types of devices or users that I could see. I had to refund hundreds of dollars in fees to students that could not be admitted into the class. WTF...

I continue to face this problem and it's unacceptable, it makes Zoom worse than useless to me. 

I had the same problem. I was the only host and had only one meeting (the main personal meeting) going. People couldn't log in though things had worked fine the previous day. I tried the starting-the-meeting-from-the-online version-of-Zoom thing and it did work but seemed like it'd be an ongoing hassle. What finally fixed it: I signed out of the Zoom app. Closed the app. Restarted the computer. Logged in and made sure that I didn't check the "stay logged in" box. Everything went back to normal. Hope it stays that way. Hope this helps someone else.