[GUACAMOLE-1363] Windows 7 sessions disconnect when certain events take place

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Duplicate
• Affects Version/s: 1.3.0
• Assignee: Unassigned
• Reporter: Dominik Borkowski
• Created: 11/Jun/21 14:37
• Updated: 11/Jun/21 18:04
• Resolved: 11/Jun/21 18:04

Description

Hello,

When upgrading from guacamole 1.2.0 to 1.3.0 we noticed a problem with our Windows 7 images: they are disconnected, then they reconnect a few seconds later. 

This behavior is 100% repeatable for us, and happens when:

• user logs in, and clicks on 'activate now' or 'activate later' pop-up menu
• user clicks on the start menu
• user clicks on the clock on the task bar
• user clicks on the internet explorer icon on the task menu

Enabling debug levels on guacd shows that each disconnect with the  `Stream_GetRemainingLength` message, eg:

```
guacd[30]: DEBUG: Stream_GetRemainingLength(s) 1509 < 3342
guacd[30]: DEBUG: order flags ff failed
guacd[30]: DEBUG: Fastpath update Orders [0] failed, status 0
guacd[30]: DEBUG: fastpath_recv_update() - -1
guacd[30]: DEBUG: fastpath_recv_update_data() fail
guacd[30]: DEBUG: transport_check_fds: transport->ReceiveCallback() - -3
guacd[30]: DEBUG: freerdp_check_fds() failed - 0
guacd[30]: ERROR: Connection closed.
guacd[30]: DEBUG: SVC "rdpdr" disconnected.
guacd[30]: DEBUG: SVC "rdpsnd" disconnected.
guacd[30]: INFO: Internal RDP client disconnected
guacd[30]: INFO: User "@dccb8beb-6b54-4761-8bc9-0ee60b42bc57" disconnected (0 users remain)
guacd[30]: INFO: Last user of connection "$81a6394b-e2d1-491a-b970-8e595ab7e98c" disconnected
guacd[30]: DEBUG: Requesting termination of client...
guacd[30]: DEBUG: Client terminated successfully.
guacd[6]: INFO: Connection "$81a6394b-e2d1-491a-b970-8e595ab7e98c" removed.
guacd[6]: INFO: Creating new client for protocol "rdp"
guacd[6]: INFO: Connection ID is "$8a4db747-cb8a-4675-aeab-2ea194a971f4"
```

We can always reproduce this issue, but the problem goes away if we deploy guacamole 1.2.0. Each deployment is clean, so there's no upgrade in place. Our windows 7 instances are AMIs, and we can repeat this on every new instance.

Any help would be greatly appreciated.
Cheers!

Issue Links

• duplicates: GUACAMOLE-1191 Disable caches which FreeRDP no longer considers supported