Ok, as I have the issue again, I am posting this in public since the helpdesk ticket was rather useless (#362)
I have multiple machines that are connected via the leaserig proxy software. One Windows computer is running the proxy, plus cgminer 3.7.2 (all fine), a second machine runs BAMT with sgminer 4.1.0 (all fine) and a third computer using Windows and bfgminer downloaded here:
http://cryptomining-blog.com/1396-download-bfgminer-3-10-0-for-windows-scrypt-mining-on-gridseed-5-chip-asics/ The leaserig proxy runs with the following comment:
"leaserigproxy.exe [My ID] 4028"
The bfgminer starts with the following settings:
" --scrypt -o stratum+tcp://192.168.178.22:3333 -u GSD -p X -d gridseed -S gridseed:all --set-device gridseed:clock=850 --expiry 50 --scan-time 25 --queue 1 --api-listen --api-allow W:192.168.178.22 --api-port 4028"

Yes, the Gridseeds are working normally although it seems they are not hashing on this screenshot.
Windows firewall and Avira Antivir has been turned off for testing - no difference. Even with firewall and anti virus software turned off the leaserig proxy software does not get a speed report. Again, the other two rigs are working perfectly fine.

Any hints to solve the issue are welcome. Just out of curiosity: The helpdesk people are doing this as volunteers or is it kind of a job?
PS: And yes, it's a german system and the IPs have been changed by now - screenshots are from three or four days ago.
