Connection errors with smartphones

NethServer Version: 8.x
Module: core
since some weeks our fieldworkers have daily problems to connect from outside via smartphone to one of our web servers (BMA).
First we thought it was an error of the crowdsec module, because there are many messages about IP ban of TELEKOM-IPs.
But now we seeked and found messages with “bma” … but we can’t understand …
What can we do ??
Part of the log:

2025-01-30T16:59:21+01:00 [1:loki1:loki-server] level=error ts=2025-01-30T15:59:21.299717342Z caller=retry.go:73 org_id=fake traceID=0e52835a32df95de msg="error processing request" try=0 query="{node_id=~\".+\"} | json syslog_id=\"SYSLOG_IDENTIFIER\",message=\"MESSAGE\" | line_format \"[{{.node_id}}:{{.module_id}}:{{.syslog_id}}] {{.message}}\" |= \"bma\"" err="could not acquire work: context canceled"
2025-01-30T16:59:21+01:00 [1:loki1:loki-server] level=error ts=2025-01-30T15:59:21.299742334Z caller=retry.go:73 org_id=fake traceID=0e52835a32df95de msg="error processing request" try=0 query="{node_id=~\".+\"} | json syslog_id=\"SYSLOG_IDENTIFIER\",message=\"MESSAGE\" | line_format \"[{{.node_id}}:{{.module_id}}:{{.syslog_id}}] {{.message}}\" |= \"bma\"" err="could not acquire work: context canceled"
2025-01-30T16:59:21+01:00 [1:loki1:loki-server] level=error ts=2025-01-30T15:59:21.299760326Z caller=retry.go:73 org_id=fake traceID=0e52835a32df95de msg="error processing request" try=0 query="{node_id=~\".+\"} | json syslog_id=\"SYSLOG_IDENTIFIER\",message=\"MESSAGE\" | line_format \"[{{.node_id}}:{{.module_id}}:{{.syslog_id}}] {{.message}}\" |= \"bma\"" err="could not acquire work: context canceled"
2025-01-30T16:59:21+01:00 [1:loki1:loki-server] level=error ts=2025-01-30T15:59:21.299777173Z caller=retry.go:73 org_id=fake traceID=0e52835a32df95de msg="error processing request" try=0 query="{node_id=~\".+\"} | json syslog_id=\"SYSLOG_IDENTIFIER\",message=\"MESSAGE\" | line_format \"[{{.node_id}}:{{.module_id}}:{{.syslog_id}}] {{.message}}\" |= \"bma\"" err="could not acquire work: context canceled"
2025-01-30T16:59:21+01:00 [1:loki1:loki-server] level=error ts=2025-01-30T15:59:21.299797373Z caller=retry.go:73 org_id=fake traceID=0e52835a32df95de msg="error processing request" try=0 query="{node_id=~\".+\"} | json syslog_id=\"SYSLOG_IDENTIFIER\",message=\"MESSAGE\" | line_format \"[{{.node_id}}:{{.module_id}}:{{.syslog_id}}] {{.message}}\" |= \"bma\"" err="could not acquire work: context canceled"
2025-01-30T16:59:21+01:00 [1:loki1:loki-server] level=error ts=2025-01-30T15:59:21.299814913Z caller=retry.go:73 org_id=fake traceID=0e52835a32df95de msg="error processing request" try=0 query="{node_id=~\".+\"} | json syslog_id=\"SYSLOG_IDENTIFIER\",message=\"MESSAGE\" | line_format \"[{{.node_id}}:{{.module_id}}:{{.syslog_id}}] {{.message}}\" |= \"bma\"" err="could not acquire work: context canceled"
2025-01-30T16:59:21+01:00 [1:loki1:loki-server] level=error ts=2025-01-30T15:59:21.299842122Z caller=retry.go:73 org_id=fake traceID=0e52835a32df95de msg="error processing request" try=0 query="{node_id=~\".+\"} | json syslog_id=\"SYSLOG_IDENTIFIER\",message=\"MESSAGE\" | line_format \"[{{.node_id}}:{{.module_id}}:{{.syslog_id}}] {{.message}}\" |= \"bma\"" err="could not acquire work: context canceled"
2025-01-30T16:59:21+01:00 [1:loki1:loki-server] level=error ts=2025-01-30T15:59:21.299859762Z caller=retry.go:73 org_id=fake traceID=0e52835a32df95de msg="error processing request" try=0 query="{node_id=~\".+\"} | json syslog_id=\"SYSLOG_IDENTIFIER\",message=\"MESSAGE\" | line_format \"[{{.node_id}}:{{.module_id}}:{{.syslog_id}}] {{.message}}\" |= \"bma\"" err="could not acquire work: context canceled"
2025-01-30T16:59:21+01:00 [1:loki1:loki-server] level=error ts=2025-01-30T15:59:21.2998773Z caller=retry.go:73 org_id=fake traceID=0e52835a32df95de msg="error processing request" try=0 query="{node_id=~\".+\"} | json syslog_id=\"SYSLOG_IDENTIFIER\",message=\"MESSAGE\" | line_format \"[{{.node_id}}:{{.module_id}}:{{.syslog_id}}] {{.message}}\" |= \"bma\"" err="could not acquire work: context canceled"
2025-01-30T16:59:21+01:00 [1:loki1:loki-server] level=error ts=2025-01-30T15:59:21.299893597Z caller=retry.go:73 org_id=fake traceID=0e52835a32df95de msg="error processing request" try=0 query="{node_id=~\".+\"} | json syslog_id=\"SYSLOG_IDENTIFIER\",message=\"MESSAGE\" | line_format \"[{{.node_id}}:{{.module_id}}:{{.syslog_id}}] {{.message}}\" |= \"bma\"" err="could not acquire work: context canceled"
2025-01-30T16:59:21+01:00 [1:loki1:loki-server] level=error ts=2025-01-30T15:59:21.299909854Z caller=retry.go:73 org_id=fake traceID=0e52835a32df95de msg="error processing request" try=0 query="{node_id=~\".+\"} | json syslog_id=\"SYSLOG_IDENTIFIER\",message=\"MESSAGE\" | line_format \"[{{.node_id}}:{{.module_id}}:{{.syslog_id}}] {{.message}}\" |= \"bma\"" err="could not acquire work: context canceled"
2025-01-30T16:59:21+01:00 [1:loki1:loki-server] level=error ts=2025-01-30T15:59:21.299927279Z caller=retry.go:73 org_id=fake traceID=0e52835a32df95de msg="error processing request" try=0 query="{node_id=~\".+\"} | json syslog_id=\"SYSLOG_IDENTIFIER\",message=\"MESSAGE\" | line_format \"[{{.node_id}}:{{.module_id}}:{{.syslog_id}}] {{.message}}\" |= \"bma\"" err="could not acquire work: context canceled"
2025-01-30T16:59:21+01:00 [1:loki1:loki-server] level=error ts=2025-01-30T15:59:21.299944511Z caller=retry.go:73 org_id=fake traceID=0e52835a32df95de msg="error processing request" try=0 query="{node_id=~\".+\"} | json syslog_id=\"SYSLOG_IDENTIFIER\",message=\"MESSAGE\" | line_format \"[{{.node_id}}:{{.module_id}}:{{.syslog_id}}] {{.message}}\" |= \"bma\"" err="could not acquire work: context canceled"
2025-01-30T16:59:21+01:00 [1:loki1:loki-server] level=error ts=2025-01-30T15:59:21.299968669Z caller=retry.go:73 org_id=fake traceID=0e52835a32df95de msg="error processing request" try=0 query="{node_id=~\".+\"} | json syslog_id=\"SYSLOG_IDENTIFIER\",message=\"MESSAGE\" | line_format \"[{{.node_id}}:{{.module_id}}:{{.syslog_id}}] {{.message}}\" |= \"bma\"" err="could not acquire work: context canceled"
2025-01-30T16:59:21+01:00 [1:loki1:loki-server] level=error ts=2025-01-30T15:59:21.300022244Z caller=retry.go:73 org_id=fake traceID=0e52835a32df95de msg="error processing request" try=0 query="{node_id=~\".+\"} | json syslog_id=\"SYSLOG_IDENTIFIER\",message=\"MESSAGE\" | line_format \"[{{.node_id}}:{{.module_id}}:{{.syslog_id}}] {{.message}}\" |= \"bma\"" err="could not acquire work: context canceled"
2025-01-30T16:59:21+01:00 [1:loki1:loki-server] level=error ts=2025-01-30T15:59:21.300039229Z caller=retry.go:73 org_id=fake traceID=0e52835a32df95de msg="error processing request" try=0 query="{node_id=~\".+\"} | json syslog_id=\"SYSLOG_IDENTIFIER\",message=\"MESSAGE\" | line_format \"[{{.node_id}}:{{.module_id}}:{{.syslog_id}}] {{.message}}\" |= \"bma\"" err="could not acquire work: context canceled"
2025-01-30T16:59:21+01:00 [1:loki1:loki-server] level=error ts=2025-01-30T15:59:21.300055463Z caller=retry.go:73 org_id=fake traceID=0e52835a32df95de msg="error processing request" try=0 query="{node_id=~\".+\"} | json syslog_id=\"SYSLOG_IDENTIFIER\",message=\"MESSAGE\" | line_format \"[{{.node_id}}:{{.module_id}}:{{.syslog_id}}] {{.message}}\" |= \"bma\"" err="could not acquire work: context canceled"
2025-01-30T16:59:21+01:00 [1:loki1:loki-server] level=error ts=2025-01-30T15:59:21.300070444Z caller=retry.go:73 org_id=fake traceID=0e52835a32df95de msg="error processing request" try=0 query="{node_id=~\".+\"} | json syslog_id=\"SYSLOG_IDENTIFIER\",message=\"MESSAGE\" | line_format \"[{{.node_id}}:{{.module_id}}:{{.syslog_id}}] {{.message}}\" |= \"bma\"" err="could not acquire work: context canceled"
2025-01-30T16:59:21+01:00 [1:loki1:loki-server] level=error ts=2025-01-30T15:59:21.300086231Z caller=retry.go:73 org_id=fake traceID=0e52835a32df95de msg="error processing request" try=0 query="{node_id=~\".+\"} | json syslog_id=\"SYSLOG_IDENTIFIER\",message=\"MESSAGE\" | line_format \"[{{.node_id}}:{{.module_id}}:{{.syslog_id}}] {{.message}}\" |= \"bma\"" err="could not acquire work: context canceled"
2025-01-30T16:59:21+01:00 [1:loki1:loki-server] level=error ts=2025-01-30T15:59:21.300101726Z caller=retry.go:73 org_id=fake traceID=0e52835a32df95de msg="error processing request" try=0 query="{node_id=~\".+\"} | json syslog_id=\"SYSLOG_IDENTIFIER\",message=\"MESSAGE\" | line_format \"[{{.node_id}}:{{.module_id}}:{{.syslog_id}}] {{.message}}\" |= \"bma\"" err="could not acquire work: context canceled"
2025-01-30T16:59:21+01:00 [1:loki1:loki-server] level=error ts=2025-01-30T15:59:21.300124695Z caller=retry.go:73 org_id=fake traceID=0e52835a32df95de msg="error processing request" try=0 query="{node_id=~\".+\"} | json syslog_id=\"SYSLOG_IDENTIFIER\",message=\"MESSAGE\" | line_format \"[{{.node_id}}:{{.module_id}}:{{.syslog_id}}] {{.message}}\" |= \"bma\"" err="could not acquire work: context canceled"
2025-01-30T16:59:21+01:00 [1:loki1:loki-server] level=error ts=2025-01-30T15:59:21.300140437Z caller=retry.go:73 org_id=fake traceID=0e52835a32df95de msg="error processing request" try=0 query="{node_id=~\".+\"} | json syslog_id=\"SYSLOG_IDENTIFIER\",message=\"MESSAGE\" | line_format \"[{{.node_id}}:{{.module_id}}:{{.syslog_id}}] {{.message}}\" |= \"bma\"" err="could not acquire work: context canceled"
2025-01-30T16:59:21+01:00 [1:loki1:loki-server] level=error ts=2025-01-30T15:59:21.300156135Z caller=retry.go:73 org_id=fake traceID=0e52835a32df95de msg="error processing request" try=0 query="{node_id=~\".+\"} | json syslog_id=\"SYSLOG_IDENTIFIER\",message=\"MESSAGE\" | line_format \"[{{.node_id}}:{{.module_id}}:{{.syslog_id}}] {{.message}}\" |= \"bma\"" err="could not acquire work: context canceled"
2025-01-30T16:59:21+01:00 [1:loki1:loki-server] level=error ts=2025-01-30T15:59:21.300172492Z caller=retry.go:73 org_id=fake traceID=0e52835a32df95de msg="error processing request" try=0 query="{node_id=~\".+\"} | json syslog_id=\"SYSLOG_IDENTIFIER\",message=\"MESSAGE\" | line_format \"[{{.node_id}}:{{.module_id}}:{{.syslog_id}}] {{.message}}\" |= \"bma\"" err="could not acquire work: context canceled"
2025-01-30T16:59:21+01:00 [1:loki1:loki-server] level=error ts=2025-01-30T15:59:21.300195909Z caller=retry.go:73 org_id=fake traceID=0e52835a32df95de msg="error processing request" try=0 query="{node_id=~\".+\"} | json syslog_id=\"SYSLOG_IDENTIFIER\",message=\"MESSAGE\" | line_format \"[{{.node_id}}:{{.module_id}}:{{.syslog_id}}] {{.message}}\" |= \"bma\"" err="could not acquire work: context canceled"
2025-01-30T16:59:21+01:00 [1:loki1:loki-server] level=error ts=2025-01-30T15:59:21.300215275Z caller=retry.go:73 org_id=fake traceID=0e52835a32df95de msg="error processing request" try=0 query="{node_id=~\".+\"} | json syslog_id=\"SYSLOG_IDENTIFIER\",message=\"MESSAGE\" | line_format \"[{{.node_id}}:{{.module_id}}:{{.syslog_id}}] {{.message}}\" |= \"bma\"" err="could not acquire work: context canceled"
2025-01-30T16:59:21+01:00 [1:loki1:loki-server] level=error ts=2025-01-30T15:59:21.300232492Z caller=retry.go:73 org_id=fake traceID=0e52835a32df95de msg="error processing request" try=0 query="{node_id=~\".+\"} | json syslog_id=\"SYSLOG_IDENTIFIER\",message=\"MESSAGE\" | line_format \"[{{.node_id}}:{{.module_id}}:{{.syslog_id}}] {{.message}}\" |= \"bma\"" err="could not acquire work: context canceled"
2025-01-30T16:59:21+01:00 [1:loki1:loki-server] level=error ts=2025-01-30T15:59:21.300246881Z caller=retry.go:73 org_id=fake traceID=0e52835a32df95de msg="error processing request" try=0 query="{node_id=~\".+\"} | json syslog_id=\"SYSLOG_IDENTIFIER\",message=\"MESSAGE\" | line_format \"[{{.node_id}}:{{.module_id}}:{{.syslog_id}}] {{.message}}\" |= \"bma\"" err="could not acquire work: context canceled"
2025-01-30T16:59:21+01:00 [1:loki1:loki-server] level=error ts=2025-01-30T15:59:21.300263519Z caller=retry.go:73 org_id=fake traceID=0e52835a32df95de msg="error processing request" try=0 query="{node_id=~\".+\"} | json syslog_id=\"SYSLOG_IDENTIFIER\",message=\"MESSAGE\" | line_format \"[{{.node_id}}:{{.module_id}}:{{.syslog_id}}] {{.message}}\" |= \"bma\"" err="could not acquire work: context canceled"
2025-01-30T16:59:21+01:00 [1:loki1:loki-server] level=error ts=2025-01-30T15:59:21.300375133Z caller=retry.go:73 org_id=fake traceID=0e52835a32df95de msg="error processing request" try=0 query="{node_id=~\".+\"} | json syslog_id=\"SYSLOG_IDENTIFIER\",message=\"MESSAGE\" | line_format \"[{{.node_id}}:{{.module_id}}:{{.syslog_id}}] {{.message}}\" |= \"bma\"" err="context canceled"